单绕组五相永磁无轴承电机的SVPWM控制

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Abstract Using the concept of multiple degrees of freedom in multiphase machines, this paper adopts an SVPWM control algorithm for a 5-phase permanent magnet type bearingless motor. The appropriate voltage vectors are selected in torque plane and suspension plane, and according to the prompt feedback in both planes and the algorithm proposed, the applying time of each voltage vector and the conducting time of power electronics devices are carried out. Conventionally, space voltage vectors in harmonic plane are used to ameliorate the magnetic field, improve the power density or obtain better voltage usage rate. In this paper, space voltage vectors in harmonic plane are properly selected by the algorithm mentioned to make the motor successfully suspended. In the end, the feasibility and effectiveness of the control algorithm proposed is verified by experimental result.

Key words： SVPWM bearingless motor multiphase machine multiple degrees of freedom

Received: 23 October 2009 Published: 07 March 2014

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TM351

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	Jiang Haibo
	Huang Jin
	Kang Min

Cite this article:

Jiang Haibo,Huang Jin,Kang Min. SVPWM Control for a 5-Phase PM Bearingless Motor With Single Set of Windings[J]. Transactions of China Electrotechnical Society, 2011, 26(1): 34-39.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I1/34

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作者简介:姜海博男, 1987年生, 博士, 主要从事永磁无轴承电机领域的研究。黄进男, 1960年生, 教授, 主要从事多相电机、大功率变频、电机控制等领域的研究。