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标题：基于高频脉冲电压注入的PMSM转子初始位置检测 |
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作者：许强强，张小凤，王长恺，等 |
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| 2017年第11期 访问次数：319次 |
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摘要：文章提出了一种新颖的永磁同步电机转子初始位置检测的方法。该方法根据永磁同步电机的凸极特性（包括结构凸极和饱和凸极），通过采用高频方波电压注入激励的方式，将检测到的含有转子初始位置信息的响应电流经过适当处理得到当前转子位置的初判值，然后利用电机定子铁心的非线性饱和特性对转子初判位置进行磁极极性修正，最终判断出转子磁极的准确位置。文章最后对该方法进行了实验验证，实验结果验证了该方法的可行性和有效性，且方法简单，鲁棒性强，对电流检测精度的依赖性小，算法容易实现，具有良好的工程应用价值。
关键词：永磁同步电机；高频脉冲电压注入；转子初始位置检测;无传感器控制
Abstract: This paper presented a novel method for rotor initial position detection of PMSM. According to the salient pole characteristics of permanent magnet synchronous motor (including structural salient pole and saturated salient pole)，by using high frequency square wave voltage injection excitation, the detected current that contained the rotor initial position information was appropriately processed to obtain the initial value of the current rotor position, and then used the nonlinear saturation characteristic of the motor stator core to correct the polarity of the initial rotor position , and finally determined the exact position of the rotor pole. At the end of this paper, the experimental results show that the method is feasible and effective. The method is simple, robust and has little dependence on the accuracy of current detection. The algorithm is easy to implement and has good engineering application.
Key words: PMSM ; high frequency signal injection; rotor position detection；sensorless control
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