Rotor Position Estimation for Switched Reluctance Motor with Searching Coils
Wang Cheng1,Deng Zhiquan1,Cai Jun2,3,Hu Rongguang1
1. Nanjing University of Aeronautics and Astronautics Nanjing 210016 China;
2. Jiangsu Engineering Research Center on Meteorological Energy Using and Control, and Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology Nanjing University of Information Science and Technology Nanjing 210044 China;
3. the University of Sheffield Sheffield S1 3JD UK
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.
王骋,邓智泉,蔡骏,胡荣光. 利用检测线圈的开关磁阻电机转子位置估计方法[J]. 电工技术学报, 2015, 30(14): 41-50.
Wang Cheng,Deng Zhiquan,Cai Jun,Hu Rongguang. Rotor Position Estimation for Switched Reluctance Motor with Searching Coils. Transactions of China Electrotechnical Society, 2015, 30(14): 41-50.
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