2022/01/20 更新

写真a

コンドウ ケイイチロウ
近藤 圭一郎
所属
理工学術院 先進理工学部
職名
教授
プロフィール
1991年3月早稲田大学理工学部電気工学科卒業
同年4月財団法人鉄道総合技術研究所入所
2007年1月千葉大学工学部(電子機械工学科)助教授
2015年4月千葉大学工学研究科(電気電子系コース)教授
2018年4月早稲田大学理工学術院(先進理工学部 電気・情報生命工学科)教授

兼担

  • 理工学術院   大学院先進理工学研究科

学内研究所等

  • 2020年
    -
    2022年

    理工学術院総合研究所   兼任研究員

  • 2019年
    -
    2023年

    鉄道システム技術研究所   プロジェクト研究所所長

 

研究キーワード

  • 電気自動車

  • 電気鉄道

  • 電気機器

  • モータドライブ

  • パワーエレクトロニクス

Misc

  • 鉄道車両駆動における蓄電装置応用技術

    近藤 圭一郎, 塚原 健太

    鉄道と電気技術   24 ( 10 ) 3 - 8  2013年09月

    CiNii

  • 大容量非接触給電トランスの無効電力を考慮した設計法

    山本 浩平, 丸山 貴嗣, 近藤 圭一郎, 柏木 隆行

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   133 ( 3 ) 378 - 385  2013年

     概要を見る

    Problems in high-power contactless power transmission systems using series and parallel resonance capacitors arise from the maximum voltage limit of the series capacitor owing to high reactive power. In this study, the characteristics of reactive power are analyzed using an equivalent circuit and the contactless power transfer system is designed considering reactive power characteristics. The self-inductance and the frequency can determine the distribution of reactive power at the primary side and the secondary side. In addition, the optimal winding number and size of the coil and the appropriate frequency are investigated by electromagnetic field analysis.

    DOI CiNii

  • 非接触給電システムの電力変換回路におけるコイル位置ずれ時の定電力伝送制御法とその特性

    北澤 智志, 近藤 圭一郎, 柏木 隆行

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   133 ( 5 ) 518 - 525  2013年

     概要を見る

    The coupling coefficient between the coils of a noncontact power supply system is reduced by coil misalignment. This reduces the output voltage and the active power in the coils. To cope with these problems, an instantaneous current control method is applied to a single-phase contactless power transformer system to apply the equivalent impedance of the PWM rectifier at the load side of the transformer. We propose a control method to supply power constantly to the load even when misalignment of the receiving coils occurs. The limit of the transferred power associated with the proposed control method is investigated. The proposed system, including the control method, is verified by experimental tests over a power range of several tens of watts.

    DOI CiNii

  • 誘導電動機のすべり周波数一定条件でのV/F変動範囲の検討 (半導体電力変換 モータドライブ合同研究会・半導体電力変換,モータドライブ,一般)

    白木 直樹, 近藤 圭一郎

    電気学会研究会資料. MD   2012 ( 45 ) 1 - 6  2012年11月

    CiNii

  • 短絡方式による回転角センサレス制御されたPMSMの惰行再起動可能条件の実験的検討 (半導体電力変換 モータドライブ合同研究会・半導体電力変換,モータドライブ,一般)

    堀江 拓也, 近藤 圭一郎

    電気学会研究会資料. MD   2012 ( 45 ) 65 - 70  2012年11月

    CiNii

  • 線形化手法を用いた誘導電動機速度センサレスベクトル制御の負荷状態における安定性解析 (モータドライブ 家電・民生合同研究会・モータドライブ一般)

    毎熊 泰樹, 近藤 圭一郎

    電気学会研究会資料. HCA   2012 ( 1 ) 1 - 6  2012年03月

    CiNii

  • PMSM回転角センサレスベクトル制御による慣性負荷駆動における回転角推定誤差低減のための解析的設計法 (モータドライブ 家電・民生合同研究会・モータドライブ一般)

    今村 宏隆, 近藤 圭一郎

    電気学会研究会資料. HCA   2012 ( 1 ) 13 - 18  2012年03月

    CiNii

  • 線形化手法を用いた誘導電動機速度センサレスベクトル制御の負荷状態における安定性解析 (モータドライブ 家電・民生合同研究会・モータドライブ一般)

    毎熊 泰樹, 近藤 圭一郎

    電気学会研究会資料. MD   2012 ( 1 ) 1 - 6  2012年03月

    CiNii

  • PMSM回転角センサレスベクトル制御による慣性負荷駆動における回転角推定誤差低減のための解析的設計法 (モータドライブ 家電・民生合同研究会・モータドライブ一般)

    今村 宏隆, 近藤 圭一郎

    電気学会研究会資料. MD   2012 ( 1 ) 13 - 18  2012年03月

    CiNii

  • 燃料電池・EDLCハイブリッド鉄道車両の電源容量決定法

    瀧澤 建治, 近藤 圭一郎

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   132 ( 2 ) 133 - 139  2012年02月

     概要を見る

    A hybrid railway traction system with fuel cells (FCs) and electric double layer-capacitors (EDLCs) is discussed in this paper. This system can save FC costs and absorb the regenerative energy. A method for designing FCs and EDLCs on the basis of the output power and capacitance, respectively, has not been reported, even though their design is one of the most important technical issues encountered in the design of hybrid railway vehicles. Such design method is presented along with a train load profile and an energy management strategy. The design results obtained using the proposed method are verified by performing numerical simulations of a running train. These results reveal that the proposed method for designing the EDLCs and FCs on the basis of the capacitance and power, respectively, and by using a method for controlling the EDLC voltage is sufficiently effective in designing efficient EDLCs and FCs of hybrid railway traction systems.

    DOI CiNii

  • 直流電気鉄道における軽負荷回生制御器の解析的設計法

    齊藤 達仁, 近藤 圭一郎, 古関 隆章

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   132 ( 2 ) 268 - 277  2012年02月

     概要を見る

    A DC-electrified railway system that is fed by diode rectifiers at a substation is unable to return the electric power to an AC grid. Accordingly, the braking cars have to restrict regenerative braking power when the power consumption of the powering cars is not sufficient. However, the characteristics of a DC-electrified railway system, including the powering cars, is not known, and a mathematical model for designing a controller has not been established yet. Hence, the object of this study is to obtain the mathematical model for an analytical design method of the regenerative braking control system. In the first part of this paper, the static characteristics of this system are presented to show the position of the equilibrium point. The linearization of this system at the equilibrium point is then performed to describe the dynamic characteristics of the system. An analytical design method is then proposed on the basis of these characteristics. The proposed design method is verified by experimental tests with a 1kW class miniature model, and numerical simulations.

    DOI CiNii

  • ディーゼルエンジンーリチウムイオン電池ハイブリッド気動車のエンジン・電池容量設計法とその評価

    白木 直樹, 近藤 圭一郎

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   132 ( 2 ) 178 - 184  2012年02月

     概要を見る

    Diesel engine lithium-ion battery hybrid vehicles are gaining attention because the energy consumption during their operation and exhaust emission can be reduced considerably. However, designing a reasonably accurate method for the engine power and battery energy has not yet been proposed, though the above mentioned type of traction system can help in realizing an environment-friendly railway vehicle. In this paper, a design method for the battery capacity (energy) and engine output is proposed in the case of a control strategy in which the sum of the kinetic energy of the vehicle and the battery energy is maintained constant. The proposed method is verified by the velocity/state of charge of the battery charts obtained in the experimental tests. The proposed design method can be used to develop the environment-friendly railway traction systems for non electrified lines.

    DOI CiNii

  • レール車輪間接線力特性のピークを探索する空転制御法

    近藤 圭一郎, 安岡 育雄, 山崎 修, 戸田 伸一, 中沢 洋介

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   132 ( 1 ) 101 - 108  2012年

     概要を見る

    A method for reducing motor torque in proportion to wheel slip is applied to an inverter-driven electric locomotive. The motor torque at wheel-slip speed is less than the torque at the maximum tangential force or the adhesion force. A novel anti-slip control method for seeking the maximum value of the tangential force between the wheel and rail is proposed in this paper. The characteristics of the proposed method are analyzed theoretically to design the torque reduction ratio and the rate of change of the pattern between the wheel-slip speed and motor current. In addition, experimental tests are also carried out to verify that the use of the proposed method increases the traction force of an electric locomotive driven by induction motors and inverters. The experimental test results obtained by using the proposed control method are compared with the experimental results obtained by using a conventional control method. The averaged operational current when using the proposed control method is 10% more than that when using the conventional control method.

    DOI CiNii

  • 鉄道におけるメンテナンスと技術者の役割 : 車両を例に

    近藤 圭一郎

    JREA : 日本鉄道技術協会誌   54 ( 10 ) 36294 - 36296  2011年10月

    CiNii

  • PMSMセンサレスベクトル制御における慣性負荷駆動時の定常回転角推定誤差の解析 (半導体電力変換 モータドライブ合同研究会・半導体電力変換一般、モータードライブ一般)

    今村 宏隆, 近藤 圭一郎

    電気学会研究会資料. MD   2011 ( 22 ) 79 - 84  2011年06月

    CiNii

  • 電動化要素技術総論

    近藤 圭一郎

    計測と制御 = Journal of the Society of Instrument and Control Engineers   50 ( 3 ) 171 - 177  2011年03月

    CiNii

  • ハイブリッド鉄道車両における直流リンクコンデンサの電圧位相進み補償による容量削減 (モータドライブ 家電・民生合同研究会・モータドライブ一般)

    田代 貴大, 近藤 圭一郎

    電気学会研究会資料. HCA   2011 ( 1 ) 1 - 6  2011年03月

    CiNii

  • 電動化要素技術総論

    近藤 圭一郎

    自動車技術   65 ( 3 ) 19 - 25  2011年03月

    CiNii

  • 産業応用部門長期ビジョンロードマップWGの活動

    近藤 圭一郎

    電気学会論文誌E(センサ・マイクロマシン部門誌)   131 ( 9 )  2011年

    CiNii

  • 電気二重層キャパシタを用いたハイブリッド電源鉄道車両のシンプルなエンジン出力制御法

    岡野 翔太, 澁谷 浩之, 近藤 圭一郎

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   131 ( 10 ) 1246 - 1253  2011年

     概要を見る

    This paper presents a simple and energy-saving method for controlling hybrid powered railway vehicles that run on rural non-electrified railway lines and have diesel engine and electrical double layer capacitors (EDLCs). The aim this study is to reduce both the fuel consumption and the capacitance of EDLCs. A basic idea proposed in this paper is that EDLCs supply and absorb the kinetic energy of the vehicle and the engine output compensates supply the energy loss with the vehicle running. Thus, the energy loss is not taken into consideration while expressing the EDLC voltage reference (equation 1); energy loss is considered when the engine is in operating mode. The proposed method is examined by performing numerical simulations for various values of engine operation time, load, and grade section. The results of this study reveal the relationship between the capacitance of the EDLCs and the fuel consumption. Using this proposed control methods, excessive charging of EDLCs can be avoided. The results of this study are expected to expedite the development of energy-saving railway vehicles for the non-electrified lines.<br>Finally, the results of this study increase the possibility of developing hybrid powered railway vehicles.

    DOI CiNii

  • 単相/三相マトリックスコンバータにおける仮想間接制御法の検討

    飯野 和幸, 福間 徹, 近藤 圭一郎, 佐藤 之彦

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   130 ( 6 ) 793 - 801  2010年06月

     概要を見る

    In this paper, we study a control method based on the virtual indirect circuit method for a single phase to three phase matrix converter (MC). The MC has a capacitor at the input side to compensate for the single phase input power fluctuation. We propose a method to determine the amplitude of the compensation capacitor voltage on the basis of the load power. The method is validated using a 1350W class single phase to three phase matrix converter system. In addition, restrictions on the modulation ratio of the input current and the compensation capacitor current are revealed, showing the limit of the output voltage according to the load power.

    DOI CiNii

  • 誘導電動機の速度センサレス制御系における線形化手法を用いた回転状態からの起動制御法

    藤波 和紀, 近藤 圭一郎

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   130 ( 11 ) 1255 - 1263  2010年

     概要を見る

    A linearization method is proposed for controlling the start-up operation of a rotating induction motor. The dynamics of this motor are deteriorated when the starting operation is carried out at high frequencies. In this method, the characteristics of the method are analyzed to reveal that the aforementioned problem is caused by the low equivalent gain of the induced voltage during the rotor flux establishment. A method to compensate for the angle of the rotor-flux-induced voltage vector is proposed to overcome this problem. The proposed method is experimentally verified by a test set, and the influence of changes in the rotor resistance is analyzed.

    DOI CiNii

  • 交流可変速駆動技術の最新動向

    近藤 圭一郎

    まぐね = Magnetics Japan   4 ( 7 ) 349 - 357  2009年07月

    CiNii

  • PMSM低速域位置センサレス制御における高調波電圧重畳可変制御による騒音低減法

    谷口 峻, 本間 俊宏, 若尾 真治, 近藤 圭一郎, 米山 崇

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   129 ( 4 ) 382 - 388  2009年04月

     概要を見る

    In this study, we examine the relationship between harmonic voltage injection, acoustic noise, and position estimation performance in a PMSM when a position-sensorless control method involving harmonic voltage injection is used at low speeds. Further, we propose a novel control method for voltage injection; this method can be used to reduce acoustic noise in the motor. The proposed control method is verified by performing numerical simulations and carrying out experiments using a 4-pole, 2-kW, 2100-rpm IPMSM (interior permanent-magnet synchronous motor).

    DOI CiNii

  • 鉄道車両駆動用PMSMにおける回転角センサレス制御時のだ行再起動

    山川 隼史, 若尾 真治, 近藤 圭一郎, 米山 崇, 谷口 峻, 望月 伸亮

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   127 ( 7 ) 700 - 706  2007年07月

     概要を見る

    This paper investigates starting procedure of rotation sensorless PMSM at coasting condition for railway vehicle traction. To realize the restarting, the initial rotor position and speed at restart are needed. The existing estimation algorithm of the initial position and speed can't be applied to railway vehicle traction because of the higher speed range and the longer current period. We propose novel estimation method of the initial speed. The estimation method is verified experimentally to ensure that it is feasible enough to be applied to the railway vehicle traction system.

    DOI CiNii

  • 鉄道車両への導入を想定したハイブリッド電源システムの多目的最適化設計

    小川 知行, 若尾 真治, 近藤 圭一郎

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   126 ( 12 ) 1690 - 1698  2006年12月

     概要を見る

    In this paper, we study an optimal design for a hybrid power source railway vehicle as an alternative to diesel railway vehicles. The hybrid power source railway vehicle is assumed to be composed of the fuel cell and the electric double layer capacitor. We apply the multiobjective optimization based on the genetic algorithm for the vehicle design, aiming at reduction of both initial cost and energy consumption. The pareto optimal solutions are obtained using the multiobjective optimization.<br>First we develop a simulation model of the hybrid power source railway vehicle and its electric power control methods. Next we derive the pareto optimal solutions as a result of the multiobjective optimization. Finally, we categorize the pareto optimal solutions to some groups, which enables us to elucidate characteristics of the pareto optimal solutions. Consequently, using the multiobjective optimization approach we effectively comprehend the problem characteristics and can obtain the plural valuable solutions.

    DOI CiNii

  • 燃料電池による鉄道車両用インバータ・誘導電動機駆動特性

    古谷 勇真, 近藤 圭一郎, 山本 貴光

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   126 ( 1 ) 42 - 47  2006年

     概要を見る

    This paper describes the experimental results of a test to drive two induction motors through a VVVF inverter by 25kW class proton membrane type fuel cells (PEMFCs). The experiments are aimed at verifying the compatibility between the drive system for the railway vehicle traction and FCs. This paper describes test results of powering, powering-off procedure, and simulated slip-readhesion control test, respectively. Through the experiments, we obtained useful knowledge required in designing the fuel cell drive system.

    DOI CiNii

  • 鉄道車両駆動用インバータにおける直流側電流の側帯高調波の理論解析

    小川 知行, 若尾 真治, Taufiq Jat, 近藤 圭一郎, 寺内 伸雄

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   126 ( 7 ) 1049 - 1057  2006年

     概要を見る

    The harmonics of the return current may interfere with the signaling current along with the rails. In this paper, we present the theoretical studies of the return current harmonics in the inverter-controlled DC electric railcar, aiming at contributing future work to improve the compatibility with the signaling current.<br>We theoretically derive sideband harmonics of the DC-link current. Then, in order to verify the theoretical study, we experimentally measure the harmonics and numerically simulate the harmonics. As a result, we concluded the theoretical DC-link current is enough accurate to be utilized for the future improvement of the inverter harmonics current.

    DOI CiNii

  • 誘導電動機速度センサレスベクトル制御の鉄道車両駆動への適用検討

    近藤 圭一郎, 結城 和明

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   125 ( 1 ) 1 - 8  2005年09月

     概要を見る

    The Pulse Generators or PGs are equipped to detect the rotor frequency of induction traction motors for the torque control in railway vehicle traction field. Eliminating PGs are preferable from the view points of increasing the reliability of the traction system, reduction of the both initial and maintenance cost and down-sizing induction traction motors. Expecting those merits, we have been studying to apply a sensor less control method to induction traction motor control. Prior to some reports of studies and tests to apply speed sensor-less strategy to railway vehicle traction, we lunched the ideas to apply the speed sensor-less control strategy and results of the studies and the tests. In this paper, we present the novel control method for railway vehicle traction and some results of theoretical study and tests.

    DOI CiNii

  • 軌間可変電車駆動用永久磁石同期電動機制御システムの開発

    近藤 圭一郎, 秦 広, 結城 和明, 長沼 克範, 松岡 孝一, 長谷部 寿郎

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   125 ( 4 ) 348 - 354  2005年09月

     概要を見る

    This paper is aimed at providing the designing method of a permanent magnet synchronous motor (PMSM) control system for the high-speed and the single-phase AC powered Gauge Changing Train (GCT). The state-of-the-art electrical motive unit is equipped with downsized direct drive type PMSMs for the simplified gauge changeable truck. Due to the feeding the AC single phase power, we propose a beat-less control for PMSMs. We verify the development results of designing procedures by the experimental results of operation on a high-speed test line in Colorado, USA.

    DOI CiNii

  • リラクタンストルクを有効利用した鉄道車両駆動用永久磁石同期電動機の回転子設計

    近藤 稔, 近藤 圭一郎, 藤島 寧, 若尾 真治

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   124 ( 1 ) 124 - 130  2004年09月

     概要を見る

    The permanent magnet synchronous motor (PMSM) is an efficient machine, which has found application over wide power and speed ranges. This paper presents the optimal rotor design of a PMSM for use on a railway vehicle. This design utilizes reluctance torque in order to develop higher torque at starting with low open circuit voltage at high speed.

    DOI CiNii

  • 鉄道車両駆動用永久磁石同期電動機の定数検討

    近藤 圭一郎, 近藤 稔

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   123 ( 4 ) 437 - 444  2003年09月

     概要を見る

    We have been investigating to apply permanent magnet synchronous motors (PMSMs) to railway vehicle traction, because the efficiency of PMSMs are higher than that of induction motors and they are expected to enable the traction motor down sized. We have to consider peculiarity on the railway vehicle traction when we design the electrical constants of PMSMs. On this paper, we point out the particular points which we have to take into account on designing works and analyze how the constants of PMSMs affect the their performance. Through this study, we suggest how to design the constants and applied the method to assumed designing works to verify the method. We conclude that the suggested method is available for the designing of PMSMs’ constants and reluctance torque is essential to the performance PMSMs for railway vehicle traction purpose.

    DOI CiNii

  • 第37回米国電気電子学会産業応用部門年次大会 : IAS'02

    近藤 圭一郎

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   123 ( 4 )  2003年04月

    CiNii

  • 周波数応答を用いた鉛蓄電池の特性表現手法

    ユシバル フェリ, 原津 裕之, 佐藤 光裕, 若尾 真治, 近藤 圭一郎, 松岡 孝一, 川松 達弥

    電気学会論文誌D(産業応用部門誌)   122 ( 8 ) 715 - 721  2002年

     概要を見る

    As battery spread more widely in recent years, we have to model its transient response precisely to grasp the whole characteristic of power source system in designing, for example, the efficient driving system of electric vehicle(EV). Up to this time, many methods are presented for battery modeling, but it is still difficult to obtain the exact characteristics of battery by them. In this paper, with this background, we propose a novel method to model the transient response of battery in view of the control engineering. In the proposed method, we measure the frequency-response of battery and introduce the concept of transfer function to decide the admittance value of battery. Finally we estimate the equivalent circuit of battery from the obtained admittance value. We also investigate the variation of circuit-constant values with the battery residual capacity.

    CiNii

  • 永久磁石同期電動機駆動用主回路の軽負荷回生時の安定性解析

    ユシバル フェリ, 内田 健司, 木原 隆宏, 若尾 真治, 近藤 圭一郎, 松岡 孝一

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   121 ( 6 ) 651 - 657  2001年

     概要を見る

    The regenerative braking method has been employed in DC-fed electric railway vehicle traction system in order to reduce energy consumption. The load's power consuming is sometimes insufficient for the regenerated power, and it causes the input voltage of traction inverter rises. In such a case, the regenerative current is regulated to prevent the over voltage. However, in applying this regulation, especially to the permanent magnet synchronous motors (PMSM) traction system, a continuous oscillation of regenerative current is sometimes observed. Unfortunately, It deteriorates passengers' riding comfortability due to torque fluctuation.<br>On this paper, we analyze the phenomena of the oscillation of regenerative currents and suggest an anti-oscillation regenerative current regulation method based on the analyzing results. The detail is as follows.<br>(1) We construct a nonlinear time-varying model, which consists of the substation, power feeding system and the main traction circuit onboard and divide the nonlinear time-varying model into four linear time-invariant systems.<br>(2) Through the analysis with the models, we make it clear that the continuous oscillation is caused by the traditional regenerative braking control method<br>(3) Based on the analysis we suggest a novel anti-oscillation regenerative braking control method, whose effectiveness is proved through experiments.

    DOI CiNii

  • 鉄道における省エネルギー技術

    近藤 圭一郎, 平栗 滋人

    JREA   42 ( 6 ) 26220 - 26223  1999年06月

    CiNii

  • 鉄道車両用永久磁石同期電動機主回路システムの直流架線電圧変動時の安定性解析

    近藤 圭一郎, 松岡 孝一, 山下 道寛, 土谷 武士

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   119 ( 7 ) 950 - 957  1999年

     概要を見る

    DC electrified railway line voltage at pantograph often changes according to load condition of other electric vehicles. Vehicle propulsion system is disturbed by this line voltage change. For practical use it must be made clear how the permanent magnet synchronous motor control system for railway traction behaves at line voltage change. In this paper we try to analyze our proposed PMSM control system behavior under sudden change of DC line voltage through pole arrangement and numerical simulation and obtain technical knowledge under this phenomenon.

    DOI CiNii

  • 究極形永久磁石同期電動機のトルクフィードバック制御法

    近藤 圭一郎, 松岡 孝一, 中沢 洋介, 清水 秀幸

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   119 ( 10 ) 1155 - 1164  1999年

     概要を見る

    At high speed range in voltage source inverter (VSI) fed permanent magnet synchronous motor gap flux is weakened to limit terminal voltage for saving the capacity of VSI. In weakening flux operation of salient pole PMSM, d-axis current and qaxis current can't be decided deductively due to reluctance torque. To cope with this problem we propose feedback control of motor torque, which is calculated from current, voltage and motor speed. By this control method torque and terminal voltage can be determined without measuring them directly. In this paper, the proposed control system is discribed, the transient characteristic is studied and the test results. Lastly we show make it clear that our method is basically effective for railway vehicle traction.

    DOI CiNii

  • ベクトル制御

    近藤 圭一郎

    鉄道と電気技術   9 ( 10 )  1998年10月

    CiNii

  • 鉄道車両駆動用永久磁石同期電動機の電流制御系設計法

    近藤 圭一郎, 松岡 孝一, 中沢 洋介

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society   118 ( 42559 ) 900 - 907  1998年

     概要を見る

    We have been studying the aplication of permanent magnet synchronous motor (PMSM) for railway vehicle traction in order to reduce the weight and size of direct drive traction motor. As a part of this study establishing a current control system of PMSM suitable for railway vehicle traction should be investigated.<br>In this paper we discuss about designing method of current control system mentioned above and suggest a method which is available under the condition of railway vehicle traction, low switching frequency and long digital calculating period. Next we investigate how to decide current response time constant <i>T<sub>d</sub></i> and reach a conclusion that it is about 10ms is appropriate under some assumed condition. Then we checked this current control system for railway vehicle traction through experiments and studies of influence of parameter changing. Consequently we can recognize the current control system has satisfactory performance for railway vehicle traction.

    DOI CiNii

  • パワーエレクトロニクスの応用と保守(14) -車上機器への応用-

    近藤 圭一郎

    鉄道と電気技術   8 ( 4 ) 92 - 96  1997年04月

    CiNii

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特定課題研究

  • 高効率電動機の高速領域におけるトルク制御性能向上の研究

    2018年  

     概要を見る

    埋込磁石形永久磁石同期電動機(IPMSM)を,インバータ出力電圧振幅に制限が生じ,位相角のみが制御可能な1パルスモードで制御する際の,トルク制御系の設計法を明らかとした。まず,本方式の特徴を明らかにすべく,既存のトルクフィードバック制御方法の制御特性を,最近のIPMSMの弱め磁束制御方法との比較を行った結果,制御量であるトルクを直接的にフィードバックする点で,本方式には優位線があることがわかった。 以上の方式について,フィードフォーワード項も踏まえ,1kWクラスIPMSMモデルで実験を行ったところ,今回の検討条件では,時定数8msまでの応答が実現できた。なおこの結果の一部は国際会議ECCE2019に投稿中である。

 

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