研究者詳細 - 道木　慎二

講演・口頭発表等 - 道木　慎二

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空間ベクトル変調による二重三相同期モータ駆動システムのコンデンサ電流低減法にデッドタイムが及ぼす影響

阪内亮介・磯部有哉・道木慎二（名古屋大学）・今井幸司・近藤孔亮・青木康明（デンソー）

令和6年電気学会全国大会 2024年3月16日電気学会

トルクマップの勾配に基づく最大トルク応答制御のIPMSMを用いた実機実験

渡邊敬矢（沼津工業高等専門学校）・道木慎二（名古屋大学）・大沼　巧（沼津工業高等専門学校）

令和6年電気学会全国大会 2024年3月14日電気学会

多相IM駆動系におけるトルク変動を生じない極数切替則の提案

小林桃歌・道木慎二（名古屋大学）・小林雅志（トヨタ自動車）

令和6年電気学会全国大会 2024年3月16日電気学会

高周波電流重畳に起因する拡張誘起電圧を用いたSynRMの低速時位置センサレス制御のd軸インダクタンス誤差の影響

冨田睦雄（岐阜工業高等専門学校）・長谷川　勝（中部大学）・道木慎二（名古屋大学）

令和6年電気学会全国大会 2024年3月16日電気学会

IMTS(Induction Motor Transission System)における磁束制御が電圧・電流に及ぼす影響

小林桃歌道木慎二小林雅志

電気学会半導体電力/モータドライブ合同研究会 2023年9月21日電気学会

高速領域において離散的座標変換が誘導モータのパラメータ同定に及ぼす影響についての考察

野村柚衣子ハオロンジャオ道木慎二

電気学会半導体電力/モータドライブ合同研究会 2023年9月21日電気学会

極数切換を想定した多相IM駆動系（Induction Motor Transmission System: IMTS）における極数切換時の電圧・電流と切換時間の関係

小林桃歌・道木慎二（名古屋大学）・二階堂龍之介・千葉　明（東京工業大学）・小林雅志（トヨタ自動車）

2023年度電気学会産業応用部門大会 2023年8月23日電気学会

極数切換を想定した多相IM駆動系（Induction Motor Transmission System: IMTS）の巻線設定と磁束密度分布に関する検討

二階堂龍之介・千葉　明（東京工業大学）・小林桃歌・道木慎二（名古屋大学）・小林雅志（トヨタ自動車）

2023年度電気学会産業応用部門大会 2023年8月23日電気学会

Acquisition of Association Rules between a Situation and an Operation of Driving Behavior by using Time Series Clustering based on Coupled-GP-HSMM 国際会議

Hashimoto, K; Yanagihara, D; Kuniyuki, H; Doki, K; Funabora, Y; Doki, S

2023 IEEE 2ND INDUSTRIAL ELECTRONICS SOCIETY ANNUAL ON-LINE CONFERENCE, ONCON 2023年 2023 IEEE 2nd Industrial Electronics Society Annual On-Line Conference, ONCON 2023

開催年月日： 2023年

記述言語：英語会議種別：口頭発表（一般）

With the progress of information and communication technology, it has become easier to observe and store a large amount of digital data. In the field of automobiles, various sensors such as Controller Area Network, GPS sensor, and in-vehicle camera are mounted in vehicles, and it is possible to collect location, operation, and surrounding environment information while driving. The collected driving behavior data can be used for accident analysis and driver's behavior analysis. However, the driving behavior data is an extremely large amount of data, and it is not easy to manually extract the data of a specific driving scene which can analyze accident and driver's behavior from a series of driving behavior data.In this paper, we propose a time series clustering method for driving behavior data. In this method, driving behavior data is divided into operation data and situation data. Here, the operation data expresses the accelerator amount, the brake amount, and the steering wheel angle, and the situation data expresses the vehicle behavior and surrounding environmental information. By applying Coupled-GP-HSMM, automatic segmentation and clustering of situation and operation data, and extraction of association rules between situation and operation are realized. In this paper, the effectiveness of the proposed method is evaluated by using the vehicle speed as situation data and the brake amount as operation data through the experiments.

DOI： 10.1109/ONCON60463.2023.10431109

Scopus

Capacitor Current Reduction in Dual Three-Phase PMSM Drive System by Model Predictive Control Considering Dead Time 国際会議

Sakauchi, R; Doki, S; Imai, K; Kondo, K; Aoki, Y

2023 25TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS, EPE'23 ECCE EUROPE 2023年

Study on a Detection Method of Driving Scenes Using Driver's Operation Data and In-Vehicle Camera Videos 国際会議

Hashimoto, K; Yanagihara, D; Kuniyuki, H; Doki, K; Funabora, Y; Doki, S

2023 IEEE 2ND INDUSTRIAL ELECTRONICS SOCIETY ANNUAL ON-LINE CONFERENCE, ONCON 2023年 2023 IEEE 2nd Industrial Electronics Society Annual On-Line Conference, ONCON 2023

Modeling of Novel Dual Three Phase PMSM with Pseudo-Triple Winding Structure and its Current Vector Control 国際会議

Aiba, K; Doki, S; Kato, H; Isogai, K

2023 25TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS, EPE'23 ECCE EUROPE 2023年

Performance Evaluation of Position Sensorless Control System with Initial Speed Estimator for Overall Speed Startup 国際会議

Hao, RJ; Doki, S; Asahina, K; Ide, A

2023 25TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS, EPE'23 ECCE EUROPE 2023年

モデル予測制御により空間電圧ベクトルの種類と順序を切り替える二重三相モータ駆動システムのコンデンサ電流低減法

鈴木昭義, 阪内亮介, 道木慎二, 今井幸司, 近藤功亮, 青木康明

令和4年電気学会全国大会 2022年3月23日電気学会

モデル予測制御から導かれた電圧変調法による二重三相同期モータ駆動システムのコンデンサ電流低減法

鈴木昭義, 阪内亮介, 道木慎二, 今井幸司, 近藤功亮, 青木康明

令和4年電気学会全国大会 2022年3月23日電気学会

拡張誘起電圧によるPMSM位置センサレス制御におけるフリーラン状態からの再起動の検討

Rongjiao Hao, 小櫻崇雅, 道木慎二

令和4年電気学会全国大会 2022年3月21日電気学会

渦電流を用いた表面磁石型同期モータの回転子位置推定

片岡浩輝, 林立喜, 冨田睦雄, 長谷川勝, 道木慎二

令和4年電気学会全国大会 2022年3月21日電気学会

Basic Verification of Contact Force-Based Control with Full Body-Worn Assistive Robot 国際会議

Masaoka, S; Funabora, Y; Doki, S

2022 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII 2022) 2022年 2022 IEEE/SICE International Symposium on System Integration, SII 2022

開催年月日： 2022年

記述言語：英語会議種別：口頭発表（一般）

This paper evaluates the performance of contact force-based control with developed wearable assistive robots enabling the contact force measurement between the wearer and the robot. Almost all the conventional assistive robots are controlled with their joint torque measured via torque sensors. These robots have risks exerting excessive force on the wearer because torque sensors cannot detect contact force exerting the wearer. Our research group developed the contact force-based control and evaluated its performance only on the simulation. Also, we developed a prototype of a wearable robot enabling to measure and detect the contact force. In this paper, tracking performance to the wearer's movements, one of the basic performances of wearable robots, is confirmed via the experience. As a result, contact force-based control can operate in full accordance with the command of zero contact force.

DOI： 10.1109/SII52469.2022.9708851

Scopus

Position Sensorless Estimation for Surface Permanent Magnet Synchronous Motor Using Eddy Current at Low-speed 国際会議

Kataoka, K; Hayashi, T; Tomita, M; Hasegawa, M; Doki, S

2022 25TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2022) 2022年 2022 International Conference on Electrical Machines and Systems, ICEMS 2022

開催年月日： 2022年

記述言語：英語会議種別：口頭発表（一般）

This paper proposes a new method for rotor position sensorless estimation of surface permanent magnet synchronous motor (SPMSM), wherein the sensorless position control is very difficult when the motor is at a standstill and in low-speed regions as the motor has no magnetic saliency. In this method, conductive non-magnetic materials are pasted on the rotor. When a high-frequency voltage is applied, eddy current flows in these materials, and the inductance slightly changes depending on the rotor position. The position estimation of 0sim 360{circ} at the electrical angle necessary for sinusoidal vector control commutation is realized using these inductance changes. Experiments show that the position estimation error is less than 50°, even though the rotor velocity is 10 rad/s.

DOI： 10.1109/ICEMS56177.2022.9983275

Scopus

Synchronous PWM Method Considering Motor Current Control for 2Level-3Phase Inverter 国際共著国際会議

Furutani, S; Doki, S

2022 25TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2022) 2022年 2022 International Conference on Electrical Machines and Systems, ICEMS 2022

開催年月日： 2022年

記述言語：英語会議種別：口頭発表（一般）

This paper proposes a Synchronous PWM method considering motor current control for 3 phase - 2 level inverter. For this purpose, the proposed method generates switching reference allowing for voltage changes within fundamental section. the proposed method is applied to motor current control simulation to confirm the effectiveness of the proposed method.

DOI： 10.1109/ICEMS56177.2022.9982866

Scopus

Study on Clustering Method of Driving Behavior Data Based on Variational Auto Encoder and Coupled-GP-HSMM 国際会議

Hashimoto, K; Yanagihara, D; Kuniyuki, H; Doki, K; Funabora, Y; Doki, S

2022 IEEE 20TH INTERNATIONAL CONFERENCE ON INDUSTRIAL INFORMATICS (INDIN) 2022年 IEEE International Conference on Industrial Informatics (INDIN)

開催年月日： 2022年

記述言語：英語会議種別：口頭発表（一般）

In Japan, where the population is aging, traffic accidents caused by elderly drivers have become a social problem. The main cause of the accident is a decline in cognitive ability, and there is an urgent need to develop technology for early detection of decline in the ability. The authors have been developing a technology to evaluate the cognitive ability of a driver from the driving behavior data. In the driving behavior data, there are some scenes where the cognitive ability can be evaluated and some scenes where the cognitive ability cannot be evaluated. Therefore, in this paper, we propose a clustering method for driving behavior data. Here, it is considered that the cognitive ability is the accuracy of the operation for the surrounding situation, and it is useful to cluster the relationship pattern between the situation and the operation for the driving behavior data as a group. In this method, Coupled-GP-HSMM and Convolutional Variational Auto Encoder are applied as a time series clustering method. This method realizes clustering of the relationship pattern between the time-series data representing the situation and the time-series data representing the operation.

DOI： 10.1109/INDIN51773.2022.9976135

Scopus

Control Method of Dual Parallel Surface-Mounted Permanent-Magnet Synchronous Motor Systems with Different Parameters Using Single Inverter 国際会議

Park, C; Doki, S

2022 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) 2022年 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

開催年月日： 2022年

記述言語：英語会議種別：口頭発表（一般）

This paper presents a control method for different dual-parallel-SPMSMs systems with a single inverter. Disturbance causes a torque difference between the two motors when one inverter drives two SPMSMs. This may lead to the motor's mechanical and electrical resonance. Several damping control methods have been proposed to suppress this resonance. However, such methods consider that the parameters of the two motors are identical. When one inverter controls two motors with different parameters, the damping control performance deteriorates. Additionally, the motor's resonance sound and motor current ripple increase. To solve these problems, this paper proposes a control method for dual parallel Surface Permanent Magnet Synchronous Motor (SPMSM) drive systems with a single inverter.

DOI： 10.1109/ECCE50734.2022.9947789

Scopus

Current Vector Control System Based on a New Discrete dq-Axis IM Model for High Speed Drive 国際会議

Takeuchi, T; Doki, S

2022 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-HIMEJI 2022- ECCE ASIA) 2022年

Implementation of Vector Control System On Multi-Core Processor by Using Model-Based Parallelization Tool 国際会議

Kim, J; Sagae, S; Edahiro, M; Honda, S; Doki, S

2022 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-HIMEJI 2022- ECCE ASIA) 2022年

Stability Improvement Method of Position Sensorless Control for Single Inverter Dual Parallel IPMSMs Drive System by Using Signal Injection 国際会議

Park, C; Doki, S

2022 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-HIMEJI 2022- ECCE ASIA) 2022年

Operator Assistance for Remote Driving with Augmented Image based on Gaze Information 国際会議

Doki, K; Suzuki, K; Funabora, Y; Doki, S; Yano, Y

2022 IEEE 31ST INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS (ISIE) 2022年 IEEE International Symposium on Industrial Electronics

開催年月日： 2022年

記述言語：英語会議種別：口頭発表（一般）

The authors have been aiming to realize a remote driving system with an HMD(Head Mounted Display) and a 360-degree camera to decrease the task load of the operator. Therefore, we have been tackling an operator assistance method of remote driving applying Augmented Reality(AR). In the previously proposed methods, AR video presented to the operator is generated based on sensing information of 3D LiDAR to deal with the communication delay. In this paper, a new generation method of AR image is proposed, in which Gaze information of the operator is used to create a 3D object to draw his attention to a hazard that might cause a traffic accident. The usefulness of the proposed method has been evaluated based on the results of the experiments using a driving simulator which has a scenario of a person jumping out from a park.

DOI： 10.1109/ISIE51582.2022.9831663

Scopus

Performance Evaluation of Startup and Driving Strategy at Overall Speed with Extended ElectroMotive Force for Position Sensorless Permanent Magnet Synchronous Motor 国際会議

Hao, RJ; Kozakura, T; Doki, S

2022 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-HIMEJI 2022- ECCE ASIA) 2022年

布状アクチュエータを用いた腕部に対する感覚想起の検討

坂井佑輔, 中川滉貴, 舟洞佑記, 青山忠義, 道木慎二

第21回計測自動制御学会システムインテグレーション部門講演会 2021年12月17日計測自動制御学会システムインテグレーション部門

複数センサで推定した相対移動の類似性に基づく自律移動ロボットのセンサ有用性評価

森川祥平, 舟洞佑記, 道木慎二, 道木加絵, 山隅允裕

第22回計測自動制御学会システムインテグレーション部門講演会 2021年12月15日計測自動制御学会システムインテグレーション部門

UAV を用いた橋梁の外観点検用画像収集自動化の実現に向けたカメラジンバル活用のための斜め方向撮影の空間分解能検証

羽根田雅也, 舟洞佑記, 道木慎二, 道木加絵

第21回計測自動制御学会システムインテグレーション部門講演会 2021年12月16日計測自動制御学会　システムインテグレーション部門

PMSMを用いたねじり振動制御装置の開発

河原祥吾, 平沢和也, 井上剛志, 赤塚弘恭, 道木慎二, 高木賢太郎

Dynamics and Design Conference 2021（D&D2021） 2021年9月17日

E3-6 6 軸力覚センサを用いた布状アクチュエータの固定状態変化による発揮力特性変化計測

中川滉貴, 舟洞佑記, 道木慎二

令和三年度電気・電子・情報関係学会東海支部連合大会 2021年9月7日電気学会東海支部

E2-4 全身装着型ロボットにおける接触状態を直接制御する手法の検討

正岡真一, 舟洞佑記, 道木慎二, 道木加絵

令和三年度電気・電子・情報関係学会東海支部連合大会 2021年9月7日電気学会東海支部

二重三相巻線モータ駆動システムにおけるモデル予測制御を用いたコンデンサ電流低減法の提案

鈴木昭義, 道木慎二, 今井幸司, 近藤孔亮, 青木康明

2021年電気学会産業応用部門大会 2021年8月27日電気学会産業応用部門

拡張誘起電圧における位置センサレス制御を用いた永久磁石同期モータフリーラン状態からの再起動法の性能評価

ハオロンジャオ・小櫻崇雅・道木慎二

2021年電気学会産業応用部門大会 2021年8月25日電気学会産業応用部門

高周波電流重畳を用いた SynRM の低速時の位置センサレス制御におけるインダクタンス誤差の影響

林　立喜, 片岡浩輝, 冨田睦雄, 長谷川　勝, 道木慎二

2021年電気学会産業応用部門大会 2021年8月26日電気学会産業応用部門

弱め界磁領域でインバータ過変調領域まで動作可能な多相電動機のベクトル制御系

赤塚弘恭, 道木慎二

2021年電気学会産業応用部門大会 2021年8月27日電気学会産業応用部門

視線情報に基づく拡張現実による遠隔運転支援 ―有効視野の周辺領域へのAR情報提示―

道木加絵, 鈴木建哉, 舟洞佑記, 道木慎二, 鳥井昭宏, 元谷卓

ロボティクス・メカトロニクス講演会2021 2021年6月一般社団法人日本機械学会ロボティクス・メカトロニクス部門

6軸力覚センサを用いた布状アクチュエータの発揮力計測

中川滉貴, 舟洞佑記, 道木慎二

ロボティクス・メカトロニクス講演会2021 2021年6月一般社団法人日本機械学会ロボティクス・メカトロニクス部門

UAVを用いた橋梁の外観自動点検における飛行可能性を考慮した撮影計画

羽根田雅也, 舟洞佑記, 道木慎二, 道木加絵

ロボティクス・メカトロニクス講演会2021 2021年6月一般社団法人日本機械学会ロボティクス・メカトロニクス部門

全速度域で利用可能な拡張誘起電圧における新たな極性判別法の電気自動車への実装と性能評価

渡辺拓誠, 小櫻崇雅, 北村健太郎, 道木慎二

令和3年電気学会全国大会 2021年3月9日電気学会

モータ制御システムのマルチコア実装における並列度と制御性能両立に向けた遅延挿入箇所の探索方法

Jinsoo KIM, 寒河江翔太, 加藤聖也, 枝廣正人, 道木慎二

令和3年電気学会全国大会 2021年3月9日電気学会

高周波電流制御を用いたSynRMの低速時の位置センサレス制御におけるインダクタンス誤差の影響

林立喜, 國枝武史, 冨田睦雄, 長谷川勝, 道木慎二

令和3年電気学会全国大会 2021年3月9日電気学会

位置推定と極性判別を同時に行う永久磁石同期モータの始動時磁極位置推定法の性能向上

小櫻崇雅, 道木慎二

令和3年電気学会全国大会 2021年3月11日電気学会

永久同期電動機のセンサレスベクトル制御招待有り

道木慎二

産業応用フォーラム「「ACドライブシステムのセンサレスベクトル制御～基礎から実装，応用例まで～」」 2021年2月1日電気学会

Application of Variable Carrier Frequency Control by Using Wide Bandgap Semiconductors Inverter for WLTC Mode Driving 国際会議

Hori, S; Kanazawa, Y; Akatuka, H; Wang, S; Doki, S; Tadano, H; Shiozaki, K

2021 22ND IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT) 2021年 Proceedings of the IEEE International Conference on Industrial Technology

開催年月日： 2021年

記述言語：英語会議種別：口頭発表（一般）

This paper aims to propose a control method of a high efficiency electric vehicles(EVs) drive motor and to verify its effectiveness. One of the ways to extend the driving distance is to improve the efficiency of the motor control system. However, existing motor control systems which use Si-IGBT inverters have limitations in terms of efficiency due to device restrictions. New inverters using wide bandgap (WBG) semiconductors such as Gallium Nitride (GaN) are being investigated to improve the efficiency. The advantages of a GaN inverter are the lower conduction and switching losses than a Si-IGBT inverter and the higher switching frequency. If the switching frequency is increased, the motor harmonic loss as well as the whole loss in the motor control system can be reduced. However, most of the existing research have focused on small capacity modules, which are not sufficient to study the motor control system of EVs. Therefore, our research group has been working on improving the GaN inverter to realize a compact EV. We are investigating variable carrier frequency control as a control method to make WBG semiconductors more useful. In this paper, a variable carrier frequency control is applied to a motor control system using GaN and SiC inverters, and we discuss the usefulness of wide bandgap semiconductors for electric vehicles by measuring the loss in WLTC mode with the systems. The experimental results show that the application of variable carrier frequency control to the motor control system with SiC inverter reduces the loss in WLTC mode by up to about 6% compared to the conventional control method.

DOI： 10.1109/ICIT46573.2021.9453618

Scopus

A Novel Decoupling Control of Dual Three Phase Drive with Two Independent Microprocessors Utilizing Current Observer 国際会議

Wang, S; Kitamura, K; Doki, S; Suzuki, T

2021 THIRTY-SIXTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2021) 2021年 Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

開催年月日： 2021年

記述言語：英語会議種別：口頭発表（一般）

A novel decoupling control scheme of a Dual Three Phase (DTP) Permanent Magnet Synchronous Motor (PMSM) drive with two microprocessors applying current observer is proposed in this work. Multiphase drives are considered as a viable solution for safety-critical applications, and substantial works have been conducted for this purpose. However, it should be noted that for a fault-tolerant drive, not only the machine itself should be considered, but also control executed Microcontroller Unit (MCU) Therefore, a novel configuration of an integrated fault tolerant DTP drive with two independent MCUs has become the interest of this paper. Magnetic coupling between winding sets is a big issue causing instability and dynamic deterioration. In order to implement decoupling current vector control on this particular system, an observer that estimates the other subsystem output current is proposed and utilized. Effectiveness of the proposed drive has been verified by experimental results.

DOI： 10.1109/APEC42165.2021.9487432

Scopus

Application of Augmented Reality based on Sensing Data to Teleoperation System for Operator Support 国際会議

Doki, K; Suzuki, K; Torii, A; Mototani, S; Funabora, Y; Doki, S

2021 22ND IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT) 2021年 Proceedings of the IEEE International Conference on Industrial Technology

開催年月日： 2021年

記述言語：英語会議種別：口頭発表（一般）

In this paper, we propose a new system for operator support in teleoperation using Augmented Reality(AR) based on sensing data. In the proposed system, an 360-degree camera is equipped with a mobile machine in a remote place which is controlled by an operator, and the captured 360-degree image is displayed to the head mounted display put on the head of the operator. The operator can control the machine smoothly by watching what he needs for his current task by turning his head. In addition, the provided image around the machine has no blind spot because of the 360-degree image. However, a large transfer delay or a dropped frame occurs due to the enormous data size of the 360-degree image, which adversely influences the operator performance. In order to solve this problem, the AR image is actually provided to the operator, in which CG objects generated based on other sensor information are superimposed on the 360-degree image as AR objects. In this paper, the usefulness of the proposed method is shown through the experimental results on obstacle avoidance of a mobile robot by teleoperation.

DOI： 10.1109/ICIT46573.2021.9453619

Scopus

Capacitor Current Reduction of Double Three Phase PMSM Drive System by Real-time MPC 国際会議

Suzuki, A; Doki, S; Imai, K; Aoki, Y; Kondo, K

IECON 2021 - 47TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY 2021年 IECON Proceedings (Industrial Electronics Conference)

開催年月日： 2021年

記述言語：英語会議種別：口頭発表（一般）

This paper proposes a capacitor current reduction method using real-time model predictive control (MPC) for a double three-phase permanent magnet synchronous motor (DTPPMSM) drive system. Capacitor current reduction for volume minimization of DTP-PMSM drive system is important issue. Optimizing switching timings by MPC is promising approach. However, it is difficult to implement ideal MPC in a real system because it requires a huge amount of calculation to predict the capacitor current. In this paper, we propose a new method that is possible to search optimal switching timing for reducing the capacitor current by using the MPC, whose calculation amount can be implemented in real-time. This paper shows the possibility of realizing an capacitor current reduction method with high control performance by reducing the amount of computation for MPC.

DOI： 10.1109/IECON48115.2021.9589070

Scopus

Effects of Inductance Error on Position Sensorless Control of Synchronous Reluctance Motor at Low Speeds Using High-Frequency Current Controller 国際会議

Hayashi, T; Kataoka, K; Tomita, M; Hasegawa, M; Doki, S

IEACON 2021: 2021 IEEE INDUSTRIAL ELECTRONICS AND APPLICATIONS CONFERENCE (IEACON) 2021年 IEACon 2021 - 2021 IEEE Industrial Electronics and Applications Conference

開催年月日： 2021年

記述言語：英語会議種別：口頭発表（一般）

Synchronous reluctance motors (SynRMs) have attracted attention for various applications because they have no magnets and rotor windings. Thus, various methods for rotor position sensorless control of SynRMs at low speeds have been proposed. Similarly, we previously introduced a method for rotor position sensorless control of SynRMs at very low speeds. The proposed control method superimposes a high-frequency current with a small constant amplitude using a high-frequency current control system. The q-axis inductance of the SynRM considerably changes according to the load. In this paper, we show that the rotor position estimation error converges even under a large error between the predefined and real settings of the q-axis inductance of the SynRM model for position estimation when using the proposed method. Experimental results confirm that the proposed method achieves robust rotor position sensorless control against q-axis inductance variations even at very low speeds.

DOI： 10.1109/IEACON51066.2021.9654631

Scopus

AR video presentation using 3D LiDAR information for operator support in mobile robot teleoperation 国際会議

Doki, K; Suzuki, K; Torii, A; Mototani, S; Funabora, Y; Doki, S

2021 IEEE 19TH WORLD SYMPOSIUM ON APPLIED MACHINE INTELLIGENCE AND INFORMATICS (SAMI 2021) 2021年

Model Predictive Current Control of PMSM drives for Achieving both Fast Transient Response and Ripple Suppression 国際会議

Kawai, H; Cordier, J; Kennel, R; Doki, S

IECON 2021 - 47TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY 2021年

GNSS で飛行する構造物点検用 UAV 群における GNSS と相対計測情報の統合による位置推定のロバスト化

木村圭佑, 舟洞佑記, 道木慎二, 道木加絵

第21回計測自動制御学会システムインテグレーション部門講演会 2020年12月17日計測自動制御学会　システムインテグレーション部門

視線情報に基づく拡張現実感映像による遠隔運転支援システム

鈴木建哉, 道木加絵, 舟洞佑記, 道木慎二, 鳥井昭宏. 元谷卓

第21回計測自動制御学会システムインテグレーション部門講演会 2020年12月18日計測自動制御学会　システムインテグレーション部門

Position Sensorless Estimation for Surface Permanent Magnet Synchronous Motor Using Eddy Current 国際会議

Soma Kato, Mutuwo Tomita, Masaru Hasegawa, Shinji Doki

ICEMS 2020 2020年11月27日 IEEE

A Study on the Implementation of Vector Control System Using the Model Base Parallelization Tool on Multi-Core Processor 国際会議

Jinsoo Kim, Seiya Kato, Shinya Honda, Masato Edahiro, Shinji Doki

ICEMS 2020 2020年11月27日 IEEE

A Novel Decoupling Control Scheme for Dual Three Phase Motors 国際会議

Shen Wang, Koji Imai, Shinji Doki

ICEMS 2020 2020年11月26日 IEEE

Examination of Current Sensor Fail-Safe of PMSM Current Control System which Using Current and Position State Estimation Techniques 国際会議

Shota Hori, Shinji Doki

ICEMS 2020 2020年11月25日 IEEE

Control Method that Reduces the High Harmonic in Overmodulation Drive of Dual Winding Motor under Condition of Voltage Supplies Unbalance 国際会議

Takashi Suzuki, Shinji Doki

ICEMS 2020 2020年11月25日 IEEE

Performance Evaluation of Position Sensorless Control by Using Extended Electromotive Force Including Overmodulation Region on Electric Vehicle 国際会議

Kentaro Kitamura, Shinji Doki

ICEMS 2020 2020年11月25日 IEEE

Examination of Magnetization Curve Model for Torque Ripple Reduction of IPMSMs to Compensate for Magnetic Characteristics 国際会議

H. Akatsuka, M. Hasegawa, S. Doki

2020年11月24日 IEEE

The Improvement of Initial Rotor Position Estimation Method with Extended-EMF Available at Overall Speed Range by Exciting with Speed and Signal Injection 国際会議

Takamasa Kozakura, Takumi Nimura, Shinji Doki

ICEMS 2020 2020年11月24日 IEEE

Torque Ripple Reduction of IPMSM Considering Compensation of Nonlinearities of Magnetic Characteristics 国際会議

Hiroyasu Akatsuka, Masaru Hasegawa, Shinji Doki

IECON2020 2020年10月20日 IEEE

Position Sensorless Control Method by Using Redefined Extended Electromotive Force for All-Speed-Range Drive of IPMSM and its Evaluation on Electric Vehicle 国際会議

Kentaro Kitamura, Takumi Nimura, Shinji Doki

ISIE2020 2020年6月17日 IEEE

Variable Switching Frequency Control for Efficiency Improvement of Motor Drive System by Using GaN Three Phase Inverter 国際会議

Ohta, K; Kanazawa, Y; Akatuka, H; Hori, S; Doki, S; Tadano, H; Shiozaki, K

2020 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT) 2020年 Proceedings of the IEEE International Conference on Industrial Technology

開催年月日： 2020年

記述言語：英語会議種別：口頭発表（一般）

This paper aims to propose a new traction motor control system for electric vehicles (EVs). EVs are required to have higher energy efficiency in motor control systems for cruising longer distance. However, motor control systems, which are generally equipped with Si-IGBT inverters, have limits of the energy efficiency. Therefore, new inverters, which use wide bandgap (WBG) semiconductor devices such as Gallium Nitride (GaN), are expected to be a solution to improve the energy efficiency. Having less energy loss in conducting and switching operation than Si-IGBT inverters, the GaN inverters can increase the switching frequency. In addition, the reduction of harmonic loss of the motors will enable us to improve the energy efficiencies of the entire motor control system. Although previous researches have demonstrated the performance of various inverters, the experiments demonstrated only inverters of small capacities that are insufficient to be applied in traction motor control of EVs. Then, our research group are challenging to increase the power of GaN inverters and to realize their practical application to compact EVs. In this research, the switching frequency of the GaN inverter was dynamically changed to verify the higher energy efficiency of the motor control system. The results of the experiment have shown that the total energy efficiency can be improved by up to about 1.5% and the total loss can be reduced by up to about 10%.

DOI： 10.1109/ICIT45562.2020.9067266

Scopus

A Novel Decoupling Control Scheme for Dual Three Phase Motors 国際会議

Wang, S; Imai, K; Doki, S

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Control Method that Reduces the High Harmonic in Overmodulation Drive of Dual Winding Motor under Condition of Voltage Supplies Unbalance 国際会議

Suzuki, T; Doki, S

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

A Study on the Implementation of Vector Control System Using the Model Base Parallelization Tool on Multi-Core Processor 国際会議

Kim, J; Kato, S; Honda, S; Edahiro, M; Doki, S

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Examination of Current Sensor Fail-Safe of PMSM current control system which using current and position state estimation techniques 国際会議

Hori, S; Doki, S

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Position Sensorless Estimation for Surface Permanent Magnet Synchronous Motor Using Eddy Current 国際会議

Kato, S; Tomita, M; Hasegawa, M; Doki, S

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Torque Ripple Reduction of IPMSM Considering Compensation of Nonlinearities of Magnetic Characteristics 国際会議

Akatsuka, H; Hasegawa, M; Doki, S

IECON 2020: THE 46TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY 2020年 IECON Proceedings (Industrial Electronics Conference)

開催年月日： 2020年

記述言語：英語会議種別：口頭発表（一般）

This paper proposes a torque ripple estimation and reduction of IPMSM with concentrated winding considering nonlinearity of magnetization characteristics. First, the proposed torque ripple estimation method which ignores nonlinearities such as magnetic saturation and cross-coupling is derived and some problems of this approach are presented. Then, the torque ripple estimation method considering nonlinearity of magnetization characteristics is proposed, in which this approach is based on simple approximations of the magnetization curve. After that, a torque ripple reduction is proposed, which are based on the adaptive identification of the equivalent torque coefficient. Finally, the performance of the proposed method is experimentally evaluated to show the feasibility of the proposed method.

DOI： 10.1109/iecon43393.2020.9254577

Scopus

Three-dimensional Deformation Control System for Fabric Actuator 国際会議

Yamaguchi, H; Funabora, Y; Doki, S; Doki, K

2020 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII) 2020年

The improvement of initial rotor position estimation method with Extended-EMF available at overall speed range by exciting with speed and signal injection 国際会議

Kozakura, T; Nimura, T; Doki, S

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Servo Brake Control based on Finite Control Set-Model Predictive Control with a Voltage Smoother 国際共著国際会議

Kawai, H; Cordier, J; Kennel, R; Doki, S

2020 IEEE 2ND GLOBAL POWER, ENERGY AND COMMUNICATION CONFERENCE (IEEE GPECOM2020) 2020年

Examination of Magnetization Curve Model for Torque Ripple Reduction of IPMSMs to Compensate for Magnetic Characteristics. 国際会議

Akatsuka, H; Hasegawa, M; Doki, S

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Performance Evaluation of Position Sensorless Control By using Extended Electromotive Force Including Overmodulation Region on Electric Vehicle 国際会議

Kitamura, K; Doki, S

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Position Sensorless Control Method by Using Redefined Extended Electromotive Force for All-Speed-Range Drive of IPMSM and its Evaluation on Electric Vehicle 国際会議

Kitamura, K; Takumi, N; Doki, S

2020 IEEE 29TH INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS (ISIE) 2020年 IEEE International Symposium on Industrial Electronics

開催年月日： 2020年

記述言語：英語会議種別：口頭発表（一般）

This paper presents evaluation of position sen-sorless control method by redefined Extended Electromotive Force (EEMFω+h) for All-speed-range on Electric Vehicle(EV). Pposition sensorless control is one of the significant research concern for IPMSM in terms of lowering cost, saving installation space and improvement of reliability. A previous research that redefined EEMF for all-speed-range drive and proposed a method to estimate (EEMFω+h) excited by signal injection and speed to realize all speed estimation has been conducted. In order to expand application examples, an EV is remodeled and implemented this method, and finally this method is evaluated in various running experiments in this paper.

DOI： 10.1109/isie45063.2020.9152459

Scopus

A Novel Decoupling Control Scheme for Dual Three Phase Motors 国際会議

Wang, S; Imai, K; Doki, S

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

A Study on the Implementation of Vector Control System Using the Model Base Parallelization Tool on Multi-Core Processor 国際会議

Kim, J; Kato, S; Honda, S; Edahiro, M; Doki, S

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

過変調領域まで動作可能な永久磁石同期モータのベクトル制御系招待有り

道木慎二

JSAE SYMPOSIUM 車載用パワーエレクトロニクスの最新技術 2019年10月

A Current Harmonic Minimum PWM for Three-Level Converters Aiming at the Low-Frequency Fluctuation Minimum of Neutral-Point Potential 国際会議

Guan, B; Doki, S

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 2019年5月 IEEE Transactions on Industrial Electronics

開催年月日： 2019年5月

記述言語：英語会議種別：口頭発表（一般）

When the selected harmonic elimination pulsewidth modulation (SHEPWM) is adopted to three-level neutral-point-clamped converters to reduce the switching frequency, the neutral-point potential (NPP) problem becomes more severe compared with other modulations. It is because there is no degree of freedom for SHEPWM to control the NPP. SHEPWM realizes a better harmonic performance by calculating the switching angles offline based on harmonic requirements. Since it is harsh to solve the angles online, we cannot change the angles to control the NPP. Aiming at the low-frequency NPP fluctuation minimum, a novel current harmonic minimum method based on the optimal third-order/ninth-order harmonic is proposed in this paper. The optimal third-order/ninth-order harmonic is derived based on the relationships among the third-order/ninth-order harmonic and the NPP. They can be utilized to realize the low-frequency NPP fluctuation minimum without changing any switching angle online. Moreover, some comparisons, such as the solution ranges, weighted total harmonic distortion, the initial value of iteration calculation, show that the proposed method has a good output performance. Finally, the experimental results are given to verify the validity of the proposed method.

DOI： 10.1109/TIE.2018.2851995

Scopus

High-performance V/f control of PMSM using state feedback control based on n-t coordinate system

Matsuki, Y; Doki, S

ELECTRICAL ENGINEERING IN JAPAN 2019年3月 Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)

開催年月日： 2019年3月

記述言語：英語会議種別：口頭発表（一般）

This paper proposes a new V/f control method for permanent magnetic synchronous motors (PMSMs) without a position sensor. The proposed method uses state feedback control based on an n–t coordinate system, and controls rotational speed and the voltage amplitude. The t-axis is a tangent line of a constant voltage ellipse, and the n-axis is a normal line of the ellipse. The t-axis current is utilized to place the poles of the transfer function at the desired position at low-speed and high-speed conditions. The effectiveness of the proposed method was verified by simulation and experimental results.

DOI： 10.1002/eej.23198

Scopus

Optimal Two Degrees-of-Freedom Based Neutral Point Potential Control for Three-Level Neutral Point Clamped Converters 国際会議

Guan, B; Doki, S

JOURNAL OF POWER ELECTRONICS 2019年1月 Journal of Power Electronics

開催年月日： 2019年1月

記述言語：英語会議種別：口頭発表（一般）

Although the dual modulation wave method can solve the low-frequency neutral point potential (NPP) fluctuation problem for three-level neutral point clamped converters, it also increases the switching frequency and limits the zero-sequence voltage. That makes it harmful when dealing with the NPP drift problem if the converter suffers from a long dead time or asymmetric loads. By introducing two degrees of freedom (2-DOF), an NPP control based on a search optimization method can demonstrate its ability to cope with the above mentioned two types of NPP problems. However, the amount of calculations for obtaining an optimal 2-DOF is so large that the method cannot be applied to certain industrial applications with an inexpensive digital signal processor. In this paper, a novel optimal 2-DOF-based NPP control is proposed. The relationships between the NPP and the 2-DOF are analyzed and a method for directly determining the optimal 2-DOF is also discussed. Using a direct calculation method, the amount of calculations is significantly reduced. In addition, the proposed method is able to maintain the strongest control ability for the two types of NPP problems. Finally, some experimental results are given to confirm the validity and feasibility of the proposed method.

DOI： 10.6113/JPE.2019.19.1.119

Scopus

Efficiency Improvement of Motor Drive System by using a GaN Three Phase Inverter 国際会議

Nakayama, Y; Kanazawa, Y; Kondo, F; Inoue, M; Ohta, K; Doki, S; Shiozaki, K

2019 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT) 2019年 Proceedings of the IEEE International Conference on Industrial Technology

開催年月日： 2019年

記述言語：英語会議種別：口頭発表（一般）

This paper shows the effectiveness for employing the GaN-FET inverter for operating the traction motor of a compact Electric Vehicle. Utilizing GaN-FET inverter can not only reduce the conduction loss, but also reduce the switching loss. Therefore GaN-FET inverter can operate motors in higher switching frequency compared with Si-IGBT inverters. It is effective to increase the switching frequency of the inverter to improve the motor efficiency because harmonic iron losses can be reduced dramatically by increasing the switching frequency, but the inverter loss becomes relatively large when the switching frequency is set too high. Therefore, optimized switching frequency should be obtained to maximize the total efficiency of the motor drive system. Experiments are carried out to compare efficiencies of motor drive system with Si-IGBT/GaN-FET inverter in several switching frequencies. Optimization of the switching frequency for maximizing the total efficiency is demonstrated to make effective use of the GaN-FET inverter in the motor drive system.

DOI： 10.1109/ICIT.2019.8755018

Scopus

Analysis and Evaluation of Current Control System of PMSM with Time-Delay to Improve Parallelization for Implementation on Multi-core Precessors 国際会議

Kim, J; Seiya, K; Edahiro, M; Doki, S

2019 22ND INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2019) 2019年

Control System Based on Contact Force Distribution for Wearable Robot with Tactile Sensor 国際会議

Ito, D; Funabora, Y; Doki, S; Doki, K

2019 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII) 2019年 Proceedings of the 2019 IEEE/SICE International Symposium on System Integration, SII 2019

開催年月日： 2019年

記述言語：英語会議種別：口頭発表（一般）

To improve safety of wearable assist robots, the authors verified the control system based on contact force distribution with an actual robot. Because wearable assist robots contact a user and apply force directly, ensuring safety of the user is most important. In order to improve safety from the aspect of control, the contact force distribution feedback control system has been researched. The system controls contact force between a user and a robot directly. Although the system validated in principal with a simple robot model on simulation, validation with an actual robot has not done yet. In this paper, the authors describe validation of the control system based on contact force distribution with an actual robot. It is evaluated on experiments used the actual robot for arm in comparison with the conventional control system based on joint torque.

DOI： 10.1109/sii.2019.8700383

Scopus

Comparison of Two Types of Extended Electromotive Force Models in Middle / High Speed Ranges Position Sensorless Control 国際会議

Ohta, K; Nimura, T; Doki, S

2019 21ST EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE '19 ECCE EUROPE) 2019年

Quantification of Contributing Degree to Braking Operation of Driver based on the Hidden Markov Model 国際会議

Hashimoto, K; Miyosawa, T; Yamada, T; Tsuchiya, T; Doki, K; Doki, S

2019 IEEE 28TH INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS (ISIE) 2019年

Position Sensorless Control of Synchronous Reluctance Motors at Low-Speeds 国際会議

Hatanaka, T; Kato, S; Tomita, M; Hasegawa, M; Doki, S; Kato, S

2019 IEEE 4TH INTERNATIONAL FUTURE ENERGY ELECTRONICS CONFERENCE (IFEEC) 2019年 2019 IEEE 4th International Future Energy Electronics Conference, IFEEC 2019

開催年月日： 2019年

記述言語：英語会議種別：口頭発表（一般）

Synchronous reluctance motors (SynRMs) have attracted much attention because they do not require magnets. Position sensorless control of SynRMs at low speeds is necessary, and several methods have been proposed in this regard. A new position sensorless control method for SynRMs operating in the very low-speed region is proposed. This approach superimposes a high-frequency current with a small and constant amplitude and a constant frequency to the torque current for driving the SynRMs, by using a high-frequency current control system. It has been shown that robust position sensorless control against inductance variations can be realized using this proposed method. In the position sensorless control method based on a superimposing signal, the current should be small. Therefore, in this paper, the capability of the presented approach to achieve a minimum constant amplitude of the high-frequency current is investigated. The experimental results indicate that the proposed method is a feasible one as position sensorless control of SynRMs in very-low speed region even if the superimposed current has a minimum constant amplitude.

DOI： 10.1109/ifeec47410.2019.9014679

Scopus

Position Sensorless Control of IPMSM in Overall Speed Range by Extended EMF 国際会議

Nimura, T; Doki, S

2019 21ST EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE '19 ECCE EUROPE) 2019年

Markerless Measurement System of Body Surface Deformation for Structure Determination of Wearable Robot 国際会議

Honda, S; Funabora, Y; Doki, S; Doki, K

2019 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII) 2019年 Proceedings of the 2019 IEEE/SICE International Symposium on System Integration, SII 2019

開催年月日： 2019年

記述言語：英語会議種別：口頭発表（一般）

The authors aim to realize a wearable robot that supports the motion of entire torso. The first task to realize the robot is to determine its structure suitable for motion support. Focusing on the body surface where the robot makes direct contact, we examine the robot structure that can follow the deformation of the body surface. In order to clarify the robot structure, it is necessary to measure the deformation of the body surface. However, with the existing measurement method of body surface deformation using markers, the robot structure can not be clarified. Hence, we have studied a new system to measure the deformation of the body surface without using any markers. In this system, the body surface shape is obtained as time-series point cloud data. After that, the body surface (point cloud data) is divided into multiple local areas, and the time-series correspondence of each local area is clarified. Finally, the deformation is measured by tracking each local area. In this paper, the details of the system are described, and the measurement accuracy of the system is discussed. Furthermore, we quantitatively clarify how the body surface of the torso deforms at the time of forward bending by using the system.

DOI： 10.1109/sii.2019.8700351

Scopus

Sensor Fail-Safe of PMSM Current Control System By Utilizing Current And Position State Estimation Techniques 国際会議

Hori, S; Doki, S

2019 22ND INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2019) 2019年

Pole Assignment of Full-Order Flux Observer to Realize Both MTPA Control and Position Sensorless Control of IPMSM 国際会議

Kato, S; Hatanaka, T; Tomita, M; Matsumoto, A; Hasegawa, M; Doki, S

2019 IEEE 4TH INTERNATIONAL FUTURE ENERGY ELECTRONICS CONFERENCE (IFEEC) 2019年

Analysis and Evaluation of Current Control System of PMSM with Time-Delay to Improve Parallelization for Implementation on Multi-core Precessors 国際会議

Kim, J; Seiya, K; Edahiro, M; Doki, S

2019 22ND INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2019) 2019年

A Robust Neutral Point Potential Control for Single Phase Three Level Rectifier based on The Multiple Degree of Freedom 国際会議

Guan, B; Doki, S

2018 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT) 2018年 Proceedings of the IEEE International Conference on Industrial Technology

開催年月日： 2018年

記述言語：英語会議種別：口頭発表（一般）

For single phase three level neutral point clamped (TL-NPC) rectifier, if the two DC-link capacitors are linked to two different loads respectively or a TL-NPC inverter, the neutral point potential (NPP) problem would be serious. It is rarely discussed at present, although some NPP control methods based on zero-sequence voltage injection have been raised, which does not deal with the asymmetrical loads in DC-side. Actually, if one phase voltage reaches to the maximum, the other one will go to the minimum. At this operation condition, the NPP control ability is limited, since there are few zero sequence voltage to choose. In this paper, a robust NPP control based on multiple degree of freedom (DOF) is proposed. Not only the zero sequence voltage, another two DOF are defined and utilized to control the NPP. As a result, the NPP control ability can be remarkably enhanced to deal with the NPP problem under some strong asymmetrical loads. The comparisons on the control domain of neutral point current for the traditional NPP control and proposed way are done firstly. Then, the simulation results are also given to verify the correctness and feasibility of proposed method.

DOI： 10.1109/ICIT.2018.8352247

Scopus

Analysis of an Application of the Extended Electromotive Force Model Based Position Sensorless Control on the Wound-Field Synchronous Motor with Dual-Three Phases in Standstill/Low Speed Region 国際会議

Wang, S; Imai, K; Doki, S

IECON 2018 - 44TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY 2018年

EEMFs Excited by Signal Injection for Position Sensorless Control of PMSMs and Their Performance Comparison by Using Imaginary Electromotive Force 国際会議

Nimura, T; Kondo, S; Doki, S; Tomita, M

2018 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-NIIGATA 2018 -ECCE ASIA) 2018年

Position Sensorless Control for Wound-Field Synchronous Motor with Double Three-phase Wound Stator Using Extended Electromotive Force Model 国際会議

Imai, K; Doki, S; Fujii, K; Jung, S

2018 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT) 2018年 Proceedings of the IEEE International Conference on Industrial Technology

開催年月日： 2018年

記述言語：英語会議種別：口頭発表（一般）

In this paper, a position sensorless control method for the Wound-Field Synchronous Motor with Double Three-phase wound stator(D-WFSM) in middle or high speed driving is proposed. Extended electromotive force observer used commonly for PMSMs is selected for the target motor's position sensorless control method. However, the method is mainly used for motors with single-set stator and that for motors with two-set stator has not been applied. This is the first time to apply the position sensorless method based on extended electromotive force into WFSMs and two-set motors. Therefore, in this paper, a new extended electromotive force model for two-set motors is proposed. Then, the effectiveness of the proposed method is verified through experiments.

DOI： 10.1109/ICIT.2018.8352226

Scopus

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Matsuki Yosuke, Doki Shinji

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A Study of Design Method of Full-Order Observer based on Extended Electromotive Force for Position Sensorless Control of IPMSMs 国際会議

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2017 20TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2017年

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Kae Doki,Kohjiro Hashimoto,Shinji Doki

39th Annual Conference of IEEE Industrial Electronics (IECON2013)

Development of a New Motor with 3-Dimensional Magnetic Circuit and Loop Windings 国際会議

Shinji Makita, Eisuke Takahashi, Masayuki Nashiki, Shinji Doki

2013 International Conference on Electrical Machines and Systems (ICEM2013)

PMSM Position Sensorless Control in the Inverter Overmodulation range 国際会議

AKIMATSU Ryunosuke,DOKI Shinji

15th Conference on Power Electronics and Applications(EPE2013)

Improvement of Torque Control System of PMSM based of Model Predictive Control for overmodulation mode 国際会議

SAKAMOTO Takuya,DOKI Shinji

15th Conference on Power Electronics and Applications(EPE2013)

Wide Rand and Fast Response Control of PMSM by Using Model Predictive Control 国際会議

Shinji Doki,Takuya Sakamoto

The 10th IEEE International Conference on Power Electronics and Drive Systems (PEDS2013)

インバータ過変調領域におけるPMSMの位置センサレス速度制御国際会議

秋松　龍之介,道木　慎二

平成25年電気学会全国大会

関節の可動範囲を考慮した冗長自由度マニピュレータの手先軌道と腕姿勢の同時計画

近藤　聡士,望月　一弥,道木　加絵,道木　慎二

平成25年電気学会全国大会

生産性を考慮したエアコンのコンプレッサ用スポーク型IPMモータの検討

佐藤　光彦,金子　清一,冨田　睦雄,道木　慎二

平成25年電気学会全国大会

PMSMの電流制御系における電圧飽和時の積分値補正法

松本　純,道木　慎二,長谷川　勝

平成25年電気学会全国大会

モデル予測制御に基づく永久磁石同期モータのトルク制御系の評価パターンを用いた性能評価

大畠　弘嗣,坂本　拓弥,道木　慎二

平成25年電気学会全国大会

高周波信号重畳に起因する騒音の低減を目的とした低周波信号重畳を可能とする位置センサレス制御国際会議

二村　智洋,中澤　辰哉,道木　慎二,藤綱　雅己

平成25年電気学会全国大会

MODELING METHOD OF HUMAN ACTIONS WITH HSMM AND IF-THEN-RULES CONSIDERING READABILITY 国際会議

Kohjiro Hashimoto, Kae Doki, Shinji Doki, Tohya Ohtsuka

IASTED2013

HSMMを用いた行動の時空間的変化パターンを表現する行動モデルの提案

橋本　幸二郎,道木　加絵,道木　慎二

計測制御学会システムインテグレーション部門2012

Estimation of Execution Timing of Human Action considering Causality between Action and Situation 国際会議

Kohjiro Hashimoto, Kae Doki, Shinji Doki

蓄積データからの状況と行動の因果関係パターン抽出手法国際会議

橋本　幸二郎,道木　加絵,道木　慎二

平成24年度電気関係学会東海支部連合大会

Dead-time compensation in model predictive instantaneous-current control 国際会議

IECON2012

Position estimation method which is suitable for highly magnetic saturation of IPMSM 国際会議

Kohei Fujii, Yang Zhao and Shinji Doki

IECON2012

A Flux-Weakening Control Method on Maximum Torque Control Frame for IPMSM Position Sensorless Control 国際会議

Atsushi Matsumoto, Masaru Hasegawa, Shinji Doki

IECON2012

モデル予測制御に基づくPMSMの電流制御系のテーブルによる実装における分解能の検討

坂本　拓弥,道木　慎二

平成24年度電気関係学会東海支部連合大会

先読み探索を用いた冗長マニピュレータの動作計画-可操作度と回避可操作度を高く保つ評価関数の検討- 国際会議

近藤　聡士,望月　一弥,道木　加絵,道木　慎二

平成24年度電気関係学会東海支部連合大会

低周波信号重畳を可能とする位置センサレス制御系における騒音低減の評価

中澤　辰哉,道木　慎二

平成24年度電気関係学会東海支部連合大会

誘起電圧表現におけるIPMSMの最大トルク制御軸上での弱め磁束制御

松本　純,道木　慎二,長谷川　勝

平成24年度電気関係学会東海支部連合大会

モデル予測制御に基づく永久磁石同期モータトルク制御系の動作領域拡大の検討国際会議

坂本　拓弥,道木　慎二

平成24年電気学会産業応用部門大会

高周波拡張誘起電圧外乱オブザーバと同期検波を用いたシンクロナスリラクタンスモータの低速時における位置・速度センサレス制御

栗田　壮一郎,冨田　睦雄,長谷川　勝,道木　慎二,加藤　真二

平成24年電気学会産業応用部門大会

自動車用モータのシーズ技術国際会議

渡辺　直樹,藤綱　雅己,藤本　博志,道木　慎二

平成24年電気学会産業応用部門大会

希土類磁石使用量と減磁の関係に着目したIPMモータの磁石使用量低減の検討

佐藤　光彦,金子　清一,冨田　睦雄,道木　慎二

平成24年電気学会産業応用部門大会

IPMSM位置センサレス制御のための最大トルク制御に適した磁束モデルの適用可能性に関する考察

松本　純,道木　慎二,長谷川　勝

平成24年電気学会産業応用部門大会

連続時系列情報の時空間的パターンを考慮した状況に基づく行動のモデル化手法の検討

道木　加絵,大塚　統也,橋本　幸二郎,道木　慎二

ロボティクス・メカトロニクス講演会2012

自律移動ロボットの自動車形状に基づく相対位置推定

花井　稔典,道木　加絵,道木　慎二

ロボティクス・メカトロニクス講演会2012

可操作性と回避可操作性を考慮した冗長マニピュレータの動作計画

望月　一弥,近藤　聡士,道木　加絵,道木　慎二

ロボティクス・メカトロニクス講演会2012

A Novel Current Control System for PMSM Considering Effects from Inverter in Overmodulation Range 国際会議

The Seventh International Conference on Power Electronics and Drive Systems

Novel Techniques for Fast Torque Response of IPMSM Based on Space-Vector Control Method in Voltage Saturation Region 国際会議

The 33rd Annual Conference of the IEEE Industrial Electronics Society

Mental Tension Detection in Speech Based on Physiological Monitoring 国際会議

2007 IEEE International Conference on Systems, Man, and Cybernetics

ロボットの自律生成した評価関数に基づく動作探索

谷山健二，矢野良和，道木慎二，大熊　繁

第23回ファジィシステムシンポジウム

過変調領域における永久磁石同期電動機の位置センサレス制御に関する研究

柴田僚介，LERDUDOMSAK SMITH，小林久晃，道木慎二，大熊　繁

平成19年度電気学会産業応用部門大会

既存動作を利用した不特定環境に適した新規動作の生成に関する研究

谷山健二，矢野良和，道木慎二，大熊　繁

ロボティクス・メカトロニクス講演会'07

ΔΣ変調に基づく1 ビット信号処理による状態空間表現ディジタルフィルタ設計法の検討

伊藤悠二，道木慎二，大熊　繁

第20回　回路とシステム　軽井沢ワークショップ

Harmonic Currents Estimation and Compensation Method of IPMSM in Overmodulation Range 国際会議

The Fourth Power Conversion Conference (PCC Nagoya 2007)

A Novel Current Control System of IPMSM Operating at High Speed based on Model Predictive Control 国際会議

The Fourth Power Conversion Conference (PCC Nagoya 2007)

Inverter Modeling and Current Control System Design for Improving Current Response of PM Synchronous Motor in Overmodulation Range 国際会議

The 32nd Annual Conference of the IEEE Industrial Electronics Society

A Study of Emotional Motion Description by Motion Modification Rules Using Adjectival Expressions. 国際会議

2006 IEEE International Conference on Systems, Man, and Cybernetics(SMC2006)

Adaptive Emotion Recognition in Speech by Feature Selection Based on KL-divergence 国際会議

2006 IEEE International Conference on Systems, Man, and Cybernetics(IEEE Conference SMC2006)

発話の連続性を考慮したオンライン学習のための感情ラベル推定に関する一手法

野田哲矢，矢野良和，道木慎二，大熊　繁

日本音響学会2006秋季研究発表会

モデル予測制御に基づく過変調領域を考慮したPMSMの電流制御に関する検討

門田充弘，LERDUDOMSAK SMITH，道木慎二，大熊　繁

平成18年電気学会産業応用部門大会

Deadtime Compensation Strategy for Sensorless Control Method of Low Voltage High Current Interior Permanent Magnet Synchronous Motor 国際会議

2006 Automotive Power Electronics(APE2006)

A Study of Emotional Motion Description by Motion Modification and Adjectival Expressions. 国際会議

IEEE International Conference on Cybernetics & Intelligent Systems and Robotics, Automation & Mechatronics 2006

永久磁石型同期モータの電流制御系へのモデル予測制御の適用

門田充弘，道木慎二，大熊　繁

第6回計測自動制御学会　制御部門大会

感情表現ルールに基づいた形容修飾による感情動作の生成に関する研究

山口淳嗣，矢野良和，道木慎二，大熊　繁

ロボティクス・メカトロニクス講演会'06

適応フィルタにおけるΔΣ変調に基づく1 ビット信号処理の演算精度の評価

伊藤悠二，村橋善光，道木慎二，大熊繁

第19回　回路とシステム　軽井沢ワークショップ

環境変化に応じて獲得された新規行動に対する自律的な実行条件の割り当てに関する基礎検討

谷山健二，矢野良和，道木慎二，大熊　繁

本知能情報ファジィ学会ECOmp研究会

対象話者に応じた音声感情認識における特徴組合せ最適化に関する考察

野田哲矢，矢野良和，道木慎二，大熊　繁

日本音響学会２００６年春季研究発表会

ロボットの新規行動追加時における行動実行条件の自律獲得に関する検討

谷山健二，矢野良和，道木慎二，大熊　繁

第20回東海ファジィ研究会

形容表現を基底とした感情を伴う動作の記述に関する研究

山口淳嗣，矢野良和，道木慎二，大熊　繁

ヒューマン情報処理研究会

ＫＬ情報量に基づく音声感情認識に有効な韻律特徴の評価法

野田哲矢，矢野良和，道木慎二，大熊　繁

日本音響学会２００５年秋季研究発表

ΔΣ変調に基づく1 ビット信号処理における適応フィルタの検討

伊藤悠二，村橋善光，道木慎二，大熊　繁

電気関係学会東海支部連合大会

ＫＬ情報量に基づく音声感情認識に有効な特徴量選択システムに関する考察

野田哲矢，矢野良和，道木慎二，大熊　繁

第２１回ファジィシステムシンポジウム

形容表現を基底としたロボットの感情動作の記述法に関する研究

山口淳嗣，矢野良和，道木慎二，大熊　繁

第21回ファジィシステムシンポジウム

ロボットにおける感情を伴う動作のパラメトリック表現

山口淳嗣，矢野良和，道木慎二，大熊　繁

ロボティクス・メカトロニクス講演会'05

ＳＯＭによる感情音声の韻律特徴に含まれる個人差の影響の分析

野田哲矢，矢野良和，道木慎二，大熊　繁

日本知能情報ファジィ学会ECOｍｐ研究会（ECOｍｐ研究会2005）

Design of band elimination filter for PMSM vector control operable in overmodulation region of inverter 国際会議

Nakayama Yosuke, Doki Shinji

ELECTRICAL ENGINEERING IN JAPAN 2019年5月 Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)

記述言語：日本語会議種別：口頭発表（一般）

This paper proposes a filter design for improving the control performance of the current control system of permanent magnet synchronous motors (PMSMs) using the overmodulation region of an inverter. The control performance of a vector control system for PMSMs using the overmodulation region of an inverter can be improved by suppressing harmonic components that are generated in this region. This paper utilizes band elimination filter (BEF) to eliminate harmonic components; however, unsuitable BEF setting leads to generation of large current oscillation at the resonant frequency of current feedback loop with BEF. In order to deal with these problems, the proposed filter design focuses on gain setting at the cutoff frequency of BEF. The proposed filter design can prevent the generation of current oscillation at the resonant frequency of the system, and can improve current control performance without complex adjustments. Simulations and experiments are carried out to show the effectiveness of the proposed BEF setting.

DOI： 10.1002/eej.23202

Scopus

Three-dimensional Deformation Control System for Fabric Actuator 国際会議

Yamaguchi Hiroki, Funabora Yuki, Doki Shinji, Doki Kae

2020 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII) 2020年

Maximum Torque Minimum Peak Phase Current of a Dual Winding Interior Permanent Magnet Synchronous Motor

Suzuki Takashi, Otake Hiroyasu, Doki Shinji

IEEJ JOURNAL OF INDUSTRY APPLICATIONS 2021年 IEEJ Journal of Industry Applications

High response torque control of IPMSM using state feedback control based on n-t coordinate system 国際会議

Matsuki Yosuke, Doki Shinji

ELECTRICAL ENGINEERING IN JAPAN 2019年1月 Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)

Contact Force Distribution Predictive Control System for Wearable Robot with Tactile Sensors

Sato Asuka, Funabora Yuki, Doki Shinji, Doki Kae

2017 11TH ASIAN CONTROL CONFERENCE (ASCC) 2017年

A Suppression Method of The Low Frequency Fluctuation of The Neutral Point Potential under 3-Level SHEPWM based on 3-Order Harmonic 国際会議

Guan Bo, Doki Shinji

2017 20TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2017年

A Study of Design Method of Full-Order Observer based on Extended Electromotive Force for Position Sensorless Control of IPMSMs 国際会議

Mabuchi Toshiya, Makimura Ayame, Tomita Mutuwo, Kondo Shota, Hasegawa Masaru, Doki Shinji, Kato Shinji

2017 20TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2017年

A Dual-Degrees of Freedom based PWM for Single Phase Three Level Rectifiers with A Strong Neutral Point Potential Control Ability 国際会議

Guan Bo, Doki Shinji

IECON 2017 - 43RD ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY 2017年

Contact Force Distribution Predictive Control System for Wearable Robot with Tactile Sensors 国際会議

Sato Asuka, Funabora Yuki, Doki Shinji, Doki Kae

2017 11TH ASIAN CONTROL CONFERENCE (ASCC) 2017年

Filter setting for improving the current control performance of IPMSMs in overmodulation region of inverter

Nakayama Yosuke, Doki Shinji, Matsumoto Atsushi, Hasegawa Masaru

2017 IEEE 12TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND DRIVE SYSTEMS (PEDS) 2017年

Analysis and Evaluation of Current Control System of PMSM with Time-Delay to Improve Parallelization for Implementation on Multi-core Precessors 国際会議

Kim Jinsoo, Seiya Kato, Edahiro Masato, Doki Shinji

2019 22ND INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2019) 2019年

Contact Force Distribution Predictive Control System for Wearable Robot with Tactile Sensors

Sato Asuka, Funabora Yuki, Doki Shinji, Doki Kae

2017 11TH ASIAN CONTROL CONFERENCE (ASCC) 2017年

Contact Force Distribution Predictive Control System for Wearable Robot with Tactile Sensors

Sato Asuka, Funabora Yuki, Doki Shinji, Doki Kae

2017 11TH ASIAN CONTROL CONFERENCE (ASCC) 2017年

Position Sensorless Control of Synchronous Reluctance Motors at Low-Speeds 国際会議

Hatanaka Takato, Kato Soma, Tomita Mutuwo, Hasegawa Masaru, Doki Shinji, Kato Shinji

2019 IEEE 4TH INTERNATIONAL FUTURE ENERGY ELECTRONICS CONFERENCE (IFEEC) 2019年

A Novel Neutral Point Potential Balance Control of Three-Level Converters Based on The Search Optimization Method of Dual Degrees of Freedom 国際会議

Guan Bo, Doki Shinji

2017 19TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE'17 ECCE EUROPE) 2017年

A study of position sensorelss control for IPMSM having non-sinusoidal inductance spatial distribution based on pattern matching method 国際会議

Song Hamin, Doki Shinji

2017 IEEE 3RD INTERNATIONAL FUTURE ENERGY ELECTRONICS CONFERENCE AND ECCE ASIA (IFEEC 2017-ECCE ASIA) 2017年

Filter Setting for Improving Torque Control Performance of IPMSMs in Overmodulation Region of Inverter 国際会議

Nakayama Yosuke, Doki Shinji

2017 20TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2017年

Pole Assignment of Full-Order Flux Observer to Realize Both MTPA Control and Position Sensorless Control of IPMSM 国際共著国際会議

Kato Soma, Hatanaka Takato, Tomita Mutuwo, Matsumoto Atsushi, Hasegawa Masaru, Doki Shinji

2019 IEEE 4TH INTERNATIONAL FUTURE ENERGY ELECTRONICS CONFERENCE (IFEEC) 2019年

A neutral point potential control for three-level neutral-point-clamped converters based on the search optimization method of the two degrees of freedom

Guan Bo, Doki Shinji

IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING 2018年8月

EEMFs Excited by Signal Injection for Position Sensorless Control of PMSMs and Their Performance Comparison by Using Imaginary Electromotive Force 国際会議

Nimura T., Kondo S., Doki S., Tomita M.

2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 2018年10月22日 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018

記述言語：英語会議種別：口頭発表（一般）

In this paper, Extended Electro-motive Force exited by signal injection, which can be utilized at standstill/Low speed, are discussed. Recently, depending on mathematical expressions for position sensorless control, there are various models of Extended Electromotive Force(EEMF), etc.. By using expression of Imaginary Electromotive Force(IEMF), differences among some models of position sensorless control can easily analyze. In this paper, the IEMF is newly defined including EEMF excited by signal injection, which is evaluated its characteristics. Specifically, we evaluate two types of EEMF excited by signal injection against to the robustness of motor parameters, and finally experiment results are indicated.

DOI： 10.23919/IPEC.2018.8507860

Scopus

Current Vector Control System Based on a New Discrete dq-Axis IM Model for High Speed Drive

Takeuchi Takuma, Doki Shinji

2022 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-HIMEJI 2022- ECCE ASIA) 2022年

Control Method that Reduces the High Harmonic in Overmodulation Drive of Dual Winding Motor under Condition of Voltage Supplies Unbalance 国際会議

Suzuki Takashi, Doki Shinji

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Contact Force Distribution Predictive Control System for Wearable Robot with Tactile Sensors 国際会議

Sato Asuka, Funabora Yuki, Doki Shinji, Doki Kae

2017 11TH ASIAN CONTROL CONFERENCE (ASCC) 2017年

Contact Force Distribution Predictive Control System for Wearable Robot with Tactile Sensors 国際会議

Sato Asuka, Funabora Yuki, Doki Shinji, Doki Kae

2017 11TH ASIAN CONTROL CONFERENCE (ASCC) 2017年

AR video presentation using 3D LiDAR information for operator support in mobile robot teleoperation

Doki Kae, Suzuki Kenya, Torii Akihiro, Mototani Suguru, Funabora Yuki, Doki Shinji

2021 IEEE 19TH WORLD SYMPOSIUM ON APPLIED MACHINE INTELLIGENCE AND INFORMATICS (SAMI 2021) 2021年

A Study on the Implementation of Vector Control System Using the Model Base Parallelization Tool on Multi-Core Processor

Kim Jinsoo, Kato Seiya, Honda Shinya, Edahiro Masato, Doki Shinji

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

A Novel Decoupling Control Scheme for Dual Three Phase Motors

Wang Shen, Imai Koji, Doki Shinji

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Examination of Current Sensor Fail-Safe of PMSM current control system which using current and position state estimation techniques

Hori Shota, Doki Shinji

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Stability Improvement Method of Position Sensorless Control for Single Inverter Dual Parallel IPMSMs Drive System by Using Signal Injection 国際会議

Park Cheonsu, Doki Shinji

2022 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-HIMEJI 2022- ECCE ASIA) 2022年

Performance Evaluation of Startup and Driving Strategy at Overall Speed with Extended ElectroMotive Force for Position Sensorless Permanent Magnet Synchronous Motor 国際会議

Hao Rongjiao, Kozakura Takamasa, Doki Shinji

2022 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-HIMEJI 2022- ECCE ASIA) 2022年

Performance Evaluation of Position Sensorless Control By using Extended Electromotive Force Including Overmodulation Region on Electric Vehicle 国際会議

Kitamura Kentaro, Doki Shinji

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Implementation of Vector Control System On Multi-Core Processor by Using Model-Based Parallelization Tool 国際会議

Kim Jinsoo, Sagae Shota, Edahiro Masato, Honda Shinya, Doki Shinji

2022 INTERNATIONAL POWER ELECTRONICS CONFERENCE (IPEC-HIMEJI 2022- ECCE ASIA) 2022年

Examination of Magnetization Curve Model for Torque Ripple Reduction of IPMSMs to Compensate for Magnetic Characteristics.

Akatsuka H., Hasegawa M., Doki S.

2020 23RD INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2020年

Frequency-Domain Analysis for Design of the Current Control System of PMSM based on Model Predictive Control 国際会議

Yokoyama Shizuka, Shimaoka Masahiro, Doki Shinji

2017 19TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE'17 ECCE EUROPE) 2017年

High Response Voltage Phase Torque Control of IPMSM for Both Linear and Over-modulation Range of Inverter 国際会議

Matsuki Yosuke, Doki Shinji

2017 19TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE'17 ECCE EUROPE) 2017年

The Steady Current Characteristics of the Voltage Phase Resolution of Model Predictive Modulated Current Vector Control for PMSM 国際会議

Shimaoka Masahiro, Doki Shinji

2017 IEEE 12TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND DRIVE SYSTEMS (PEDS) 2017年

The Compensation Strategy on The Drift Voltage Problem of Dual Modulation Waves based Neutral Point Potential Control for Three Level Converter 国際会議

Guan Bo, Doki Shinji

2017 IEEE 26TH INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS (ISIE) 2017年

The characteristic evaluation of the method to improve the voltage phase resolution of Model Predictive Control for Current Control system of PMSM 国際会議

Shimaoka Masahiro, Yokoyama Shizuka, Doki Shinji

2017 IEEE 3RD INTERNATIONAL FUTURE ENERGY ELECTRONICS CONFERENCE AND ECCE ASIA (IFEEC 2017-ECCE ASIA) 2017年

Position Sensorless Control of Synchronous Reluctance Motors at Very Low Speeds Region Using High-frequency Current Control System 国際会議

Mabuchi Toshiya, Makimura Ayame, Tomita Mutuwo, Kondo Shota, Hasegawa Masaru, Doki Shinji, Kato Shinji

2017 20TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) 2017年

Measuring Position Determination for Accurate and Efficient Visual Inspection using UAV

Asa Kotaro, Funabora Yuki, Doki Shinji, Doki Kae

2017 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII) 2017年

Mathmatical Models on Extended Electromotive Force Exited by High Frequency Signal Injection and Its Robustness for Position Estimation of PMSM 国際会議

Kondo Shota, Doki Shinji, Tomita Mutuwo

2017 IEEE 12TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND DRIVE SYSTEMS (PEDS) 2017年

Impedance Control System Based on Contact Force Distribution for Wearable Robot with Tactile Sensors 国際会議

Sato Asuka, Funabora Yuki, Doki Shinji, Doki Kae

2017 IEEE/SICE INTERNATIONAL SYMPOSIUM ON SYSTEM INTEGRATION (SII) 2017年

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<道木 慎二>

講演・口頭発表等 - 道木 慎二

<道木　慎二>

講演・口頭発表等 - 道木　慎二