2 0 0 0 電気自動車用相反モ-タの駆動特性
- 著者
- 河村 篤男 横山 智紀 久米 常生
- 出版者
- The Institute of Electrical Engineers of Japan
- 雑誌
- 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 (ISSN:09136339)
- 巻号頁・発行日
- vol.115, no.1, pp.31-38, 1994-12-20
- 被引用文献数
- 6 1
A new motor (ADTR-Motor: Anti-Directional Twin Rotary Motor) for electric vehicle drive was proposed. A stator in a conventional motor was reformed to be movable, and the stator (outer rotor) and the rotor (inner rotor) rotate in anti-directions. IM type ADTR-Motor and SM type ADTR-Motor are considerable, and in this paper a prototype of IM type ADTR-Motor was experimentally constructed. When ADTR-Motor is used for an EV drive, the direction of one of the rotors should be reversed, and both rotors, which rotate in the same direction, propel the two wheels of EV. The torque of wheels can be balanced without differential gear. The fundamental characteristics of ADTR-Motor are clarified, which are the structure of ADTR-Motor, the equivalent circuit parameters, the torque balance theory, the torque-speed characteristics, the rotors speed transient characteristics, and the transient response under the speed sensorless torque control.
1 0 0 0 OA 電気自動車用98.5%高効率チョッパ回路QRASの提案と実証実験
- 著者
- 弦田 幸憲 河村 篤男
- 出版者
- 一般社団法人 電気学会
- 雑誌
- 電気学会論文誌D(産業応用部門誌) (ISSN:09136339)
- 巻号頁・発行日
- vol.125, no.11, pp.977-987, 2005 (Released:2006-02-01)
- 参考文献数
- 16
- 被引用文献数
- 4 9
We have proposed a high efficiency and high power chopper based on new soft switching scheme QRAS (Quasi-resonant Regenerating Active Snubber) and we studied the practical effectiveness and the novelty of the QRAS by the simulation and by the experiment. This time we made one-tenth prototype model actually and tested it by rating test, light load test, current discontinuous mode test and test out of resonance stable operation. We report the general evaluation of these test results and the possibility of the realization on the 80kW practical model is demonstrated by these successful test results. In addition, as an approach of the next study the feasibility test of 8kW SiC-QRAS is followed and the preliminary evaluation of efficiency rise using “Silicon Carbide (SiC)" power devices is given with the successful experimental results.
1 0 0 0 OA 電力回路に用いる負性インダクタンスの基本特性
- 著者
- 船渡 寛人 神山 健三 河村 篤男
- 出版者
- The Institute of Electrical Engineers of Japan
- 雑誌
- 電気学会論文誌D(産業応用部門誌) (ISSN:09136339)
- 巻号頁・発行日
- vol.119, no.4, pp.550-551, 1999-04-01 (Released:2008-12-19)
- 参考文献数
- 2
The authors have proposed the VAPAR (Variable Active-Passive Reactance Circuit) which can generate not only a positive reactance but also a negative reactance applicable to a power circuit. To help understanding of a negative inductance, at first, the difference between a negative inductance and a capacitance is clarified by demonstrating simulations of series LCR and LLnR(Ln<0) circuits. Then the characteristics of the negative inductance is also exemplified by a dynamic model using a motor-assisted bicycle.
1 0 0 0 OA マルチレートフィードフォワード制御を用いた完全追従制御法
- 著者
- 藤本 博志 堀 洋一 河村 篤男
- 出版者
- The Society of Instrument and Control Engineers
- 雑誌
- 計測自動制御学会論文集 (ISSN:04534654)
- 巻号頁・発行日
- vol.36, no.9, pp.766-772, 2000-09-30 (Released:2009-03-27)
- 参考文献数
- 23
- 被引用文献数
- 26 35
In this paper, a novel perfect tracking control method based on the multirate sampling control is proposed, in which the concept of the two-degree-of-freedom preview control is employed. In the proposed method, it is assumed that the usual single-rate robust feedback controller such as the disturbance observer or the H∞ controller already exists, and only the feedforward controller is designed by using the multirate sampling control. The advantages of the proposed method are that 1) the controller can be designed without considering the unstable zeros of the discrete-time plant, 2) the states of the plant match the desired trajectories at every sampling point, 3) high robust performance is assured by the robust feedback controller.An illustrative example of position control using a servo motor is presented, and the advantages of this approach are demonstrated.
1 0 0 0 OA 高効率高電力密度チョッパによる可変速駆動系の省エネルギー化の研究
- 著者
- 河村 篤男 石岡 和明 平井 淳二
- 出版者
- 一般社団法人電子情報通信学会
- 雑誌
- 電子情報通信学会技術研究報告. PE, 電子通信用電源技術
- 巻号頁・発行日
- vol.95, no.31, pp.11-18, 1995-05-18
- 被引用文献数
- 1
非接触型の電源装置用として研究開発した高周波リンクインバータに、通信用の情報を重畳させることにより、産業用ロボット等における配線を無くし、省スペース、高信頼性化等を目指した、新しい概念に基づく電力変換装置を提案する。インバータ回路、通信方式等について述べる。