Abstract：A sensorless control method based on phase inductance information is proposed for interior permanent magnet synchronous motors (IPMSMs). By analyzing the phase inductance components of IPMSM, the difference of phase inductance is put forward for eliminating the bad influence of DC component of phase inductance. Furthermore, with the iteration operation of phase inductance difference in the form of vectors, the subdivided inductance vector cluster is obtained. With the help of logical comparison of the inductance vector cluster, the rotor position which can be infinitely fractionized theoretically is achieved to control the IPMSM. The proposed rotor position estimated method need not the transformation of coordinates, and has brief structure. Experiment results show its reliable position estimation in zero and low speed. Moreover, it has good load capacity with fine static and dynamic performance.
邱鑫, 黄文新, 卜飞飞. 一种利用相电感的内置式永磁同步电机无位置传感器控制方法[J]. 电工技术学报, 2014, 29(7): 133-139.
Qiu Xin, Huang Wenxin, Bu Feifei. A Sensorless Control Method for Interior Permanent Magnet Synchronous Machines Using Phase Inductance. Transactions of China Electrotechnical Society, 2014, 29(7): 133-139.
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