利用检测线圈的开关磁阻电机转子位置估计方法

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Abstract

A new indirect rotor position estimation method for 12/8 switched reluctance motor (SRM) is presented in this paper. In this method, searching coils are wounded on stator teeth together with main coils. The structure of searching coils is able to reduce the induced voltages caused by main coils. Parameter design of it is also discussed. By applying high frequency voltage to searching coils, the rotor position can be derived from induced sample voltage signals. Searching coils are isolated from main coils, thus high frequency signal can be injected from standstill to high speed. Therefore, the proposed method can operate in a wide speed range. The method is implemented on a 12/8 SRM. Simulation and experimental results demonstrate the validity of this method.

Key words： Rotor position estimation switched reluctance motor searching coil high frequency injection

Received: 10 June 2015 Published: 08 September 2015

PACS:

TM352

Fund:

Supported by the National Natural Science Foundation of China (51277094)

About author:: Wang Cheng Male,born in 1991, Master student. Major research interests include sensorless control of switched reluctance motors and brushless DC motors.Deng Zhiquan Male,born in 1969, PHD, professor at Nanjing University of Aeronautics and Astronautics. Major research interests include bearingless machines, high speed machines and control of AC machines.

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	Wang Cheng
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Cite this article:

Wang Cheng,Deng Zhiquan,Cai Jun等. Rotor Position Estimation for Switched Reluctance Motor with Searching Coils[J]. Transactions of China Electrotechnical Society, 2015, 30(14): 41-50.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I14/41

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