[논문]극수/슬롯수 조합에 따른 Radial Vibration Force 고려한 매입자석 동기모터 특성 연구

방량; 이수진; 이병화; 홍정표

doi:10.5370/kiee.2011.60.5.949

Abstract ▼ AI-Helper

This paper presents a comparative study on motor characteristics with specific consideration of radial vibration force in interior permanent magnet synchronous motors (IPMSM) according to pole/slot combinations. Three IPMSM models, 16-pole/15-slot design, 16-pole/18-slot design and 16-pole/24-slot d...

This paper presents a comparative study on motor characteristics with specific consideration of radial vibration force in interior permanent magnet synchronous motors (IPMSM) according to pole/slot combinations. Three IPMSM models, 16-pole/15-slot design, 16-pole/18-slot design and 16-pole/24-slot design are built, in which 16-pole/15-slot and 16-pole/18-slot designs provide high winding factor and 16-pole/24-slot design is known as a general pole/slot combination. By coupling finite element analysis (FEA) with equivalent circuit method, motor characteristics, back electro-motive force (Back-EMF), inductances, cogging torque, etc. as well as machine output performances are analyzed and compared. The radial vibration force (RVF) distribution in air gap causing stator vibration and noise is interested. It is expected that this study help with appropriate choice of pole/slot combination in IPMSM design.

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문제 정의

This study is concern to choose an appropriate pole/slot combination under trade-off of IPMSM characteristics and specific consideration of RVF distribution in air gap. Among various pole numbers, 16-pole (16p) IPM design is chosen to build analysis models with conventional unbalanced combinations, 15-slot (15s), 18-slot (18s), as well as balanced combination 24-slot (24s), respectively.

제안 방법

In this study, for predicting performance characteristics of IPMSM, an well-accepted d-q axis equivalent circuits method is adopted, particularly the iron core losses consideration is included by using equivalent resistance Rc, as presented in Fig. 3. The mathematical model is given by equations (1), (2), and (3).
The paper presented a study on the machine characteristics in given IPMSM models with different pole/slot combinations, by comparing their characteristics of Back-EMF, inductances, cogging torque, torque performance, especially with separately consideration of vibration and noise by analyzing their radial vibration force. It is emphasized that an appropriate pole/slot combination choosing in IPMSM design helps to achieve the desired machine characteristics relative easily without detailed design.

대상 데이터

In this study, three IPMSM models are built, 16p/15s model, 16p/18s model and 16p/24s model. TABLE.

성능/효과

Based on the introduced three IPMSM models, 16p/18s design model shows general better characteristics, that high winding factor and field weakening ability, low cogging torque, and torque ripple, in additional of balanced radial vibration force distribution. However, circulating current occurs when parallel circuit is used.
From the present studies on the machine characteristics with RVF consideration, the compared results are listed in TABLE III. It can be concluded that the 16p/15s model should be avoided the IPMSM design due to its unbalanced RVF distribution in air gap, while under a trade-off consideration of winding factor, cogging torque, torque ripple, THD of Back-EMF, and balanced RVF distribution in air gap, the 16p/18s model is generally thought to be better design compare to the 16p/24s model for achieving low noise and vibration.

참고문헌 (5)

Shigeo Morimoto, Yoji Takeda, "Machine Parameters and Performance of Interior Permanent Magnet Synchronous Motors with Different Permanent Volume'', Electrical Engineering in Japan, vol. 131, No. 4, 2000.
Freddy Magnussen, Chandur Sadarangani, "Winding Factors and Joule Losses of Permanent Magnet Machines with concentrated Windings", Electric Machines and Drives Conference(IEMDC'03), vol. 1, pp. 333-339, June 2002.
Takeda et al. Control schemes for PM motor and comparative characteristic of various rotor designs. Dengakuron; 114-D:662, 1994.
Sung-Il Kim, Ji-Young Lee, Young-Kyoun Kim, Jung-Pyo Hong, Yoon Hur, Yeon-Hwan Jung, "Optimization for Reduction of Torque Ripple in Interior Permanent Magnet Motor by Using the Taguchi Method", IEEE Transactions on Magnetics, vol. 41, No. 5, May. 2005.

상세보기
Pia Salminen, Markku Niemela and Juha Pyrhonen, Juhani Mantere, "Performance analysis of fractional slot wound PM motors for low speed applications", IEEE Industry Applications Society Annual Meeting, Oct., 2004.

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극수/슬롯수 조합에 따른 Radial Vibration Force 고려한 매입자석 동기모터 특성 연구
Study on Machine Characteristics in Interior Permanent Magnet Synchronous Motor According to Pole/Slot Combinations with Radial Vibration Force Consideration 원문보기

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극수/슬롯수 조합에 따른 Radial Vibration Force 고려한 매입자석 동기모터 특성 연구 Study on Machine Characteristics in Interior Permanent Magnet Synchronous Motor According to Pole/Slot Combinations with Radial Vibration Force Consideration 원문보기

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극수/슬롯수 조합에 따른 Radial Vibration Force 고려한 매입자석 동기모터 특성 연구
Study on Machine Characteristics in Interior Permanent Magnet Synchronous Motor According to Pole/Slot Combinations with Radial Vibration Force Consideration 원문보기

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