4 0 0 0 OA IPEC2022 ECCE-Asia Himejiを終えて
- 著者
- 赤津 観
- 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.142, no.11, pp.NL11_1, 2022-11-01 (Released:2022-11-01)
4 0 0 0 OA 復活の狼煙をIPEC-Himeji 2022 ECCE-Asiaから!
- 著者
- 赤津 観
- 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.141, no.9, pp.NL9_1, 2021-09-01 (Released:2021-09-01)
- 著者
- 綿引 正倫 赤津 観
- 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.142, no.11, pp.835-844, 2022-11-01 (Released:2022-11-01)
- 参考文献数
- 14
It is known that the harmonic current of a motor affects torque ripple. Therefore, to take into account the harmonic current in finite element analysis, the voltage input needs to be evaluated however, voltage input analysis is more time-consuming than current input analysis. In this paper, we propose a method to predict the harmonic current and torque ripple of the voltage input analysis of the sine wave by only using the result of the current input analysis of the sine wave in the surface permanent magnet synchronous motor.
1 0 0 0 方向性電磁鋼板を用いたSRMの設計と実機特性
- 著者
- 土屋 柚樹 赤津 観
- 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.142, no.1, pp.1-8, 2022-01-01 (Released:2022-01-01)
- 参考文献数
- 10
The switched reluctance motor (SRM) has generated considerable attention because of its lack of magnets and lower cost structure compared to the permanent magnet synchronous motor (PMSM) structure. In addition, SRM can achieve high speed rotation because of its simple structure and high robustness. However, SRM has lower torque density than that of PMSM. To increase the torque density in SRM, a grain-oriented electrical steel sheet (GO) can be applied as the stator and rotor materials. The magnetic characteristics of GO fluctuate depending on the angle between the rolling direction and magnetic flux direction. In a previous research, it was confirmed that three kinds of torques are output when the stator and rotor materials use GO. In this paper, three kinds of torques are explained, and a design concept of an SRM using GO is proposed. In addition, the static and dynamic torque characteristics of the proposed SRM are verified by simulation and experiment.
1 0 0 0 PMSMのトルクリップル抑制用高調波電流重畳指令値生成方法の検討
- 著者
- 西尾 太一 山内 亮佑 金堂 雅彦 赤津 観
- 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.141, no.11, pp.848-855, 2021-11-01 (Released:2021-11-01)
- 参考文献数
- 9
- 被引用文献数
- 2
Permanent-magnet synchronous motors (PMSMs) are used for traction application in electric vehicles (EVs) and hybrid electric vehicles (HEVs). However, PMSMs generate vibration and acoustic noise in the connected load due to torque ripple. Torque ripple reduction techniques require accurate modeling of torque ripple and estimation of motor parameters considering magnetic saturation and magnet temperature variation. Existing approaches that consider magnetic saturation and magnet temperature variation are complicated and difficult to realize. Therefore, this paper proposes a torque ripple expression which is regarded as complex vector behavior. It can easily determine the high harmonic current reference to reduce the torque ripple by geometrically expressing the torque ripple. Furthermore, the effect of the proposed method of torque ripple reduction was experimentally verified.
1 0 0 0 OA 巻線係数とインダクタンス係数を用いた多極多スロット集中巻SPMSMの簡易設計手法
- 著者
- 赤津 観 涌井 伸二
- 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.127, no.11, pp.1171-1179, 2007-11-01 (Released:2007-11-01)
- 参考文献数
- 10
- 被引用文献数
- 8 20
This paper proposed a calculation method of the torque and power density especially for the fractional-slot concentrated winding machines. The torque coefficient and the inductance coefficient to transform from m-slot/n-pole machine to 3-phase/2-pole machine are used. Some machines were designed and these torque densities and power densities are compared. Experimental results showed the effectiveness of the proposed calculation method and have good accordance with both calculation results and FEA results.
- 著者
- 本田 一成 赤津 観
- 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.141, no.1, pp.39-45, 2021-01-01 (Released:2021-01-01)
- 参考文献数
- 10
- 被引用文献数
- 3
Permanent magnet synchronous motors (PMSMs) are widely used as an automotive motor, and there has been a demand for their further technological advance. A harmonic current control method has been used as a controllable approach for realizing its low vibration of PMSMs. In addition, a dual inverter system has attracted attention as an automotive motor system considering its fault tolerant function. In this study, an open-winding structure PMSM driven by dual three-phase inverters, which share a DC bus source, is used for the proposed third harmonic current control. By using third harmonic current control, it is possible to reduce both the sixth order torque ripple component and the second order radial force. The performance of the third harmonic current control of the open-winding PMSM is verified through FEA and experimental results.
- 著者
- 赤津 観 御供 頌弘 涌井 伸二
- 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 = 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.128, no.2, pp.125-130, 2008-02-01
- 参考文献数
- 11
This paper proposes a speed and position estimation methods by using a Hall effect sensor. The speed is estimated from the fluctuated current which can be observed on the control axis. The position is estimated from the estimated speed and is corrected from the pulse which is generated by the Hall effect sensor mounted on the machine. Although the speed control range is limitted since this method is based on the back EMF, the speed and the position can be estimated without any motor parameter is used. The prposed method is verified by the experiments which 120W SPMSM is used for the tested machine, the currnet control and the speed control results including the controlable speed range are breifly explained.