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基于扩展滑模观测器的永磁同步电动机无传感器控制

, PP. 79-85

Keywords: 永磁同步电动机,反电动势,滑模观测器,扩展滑模观测器,模型参考自适应系统

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Abstract:

针对传统滑模观测器在估计电机转速时存在的抖动问题,本文通过永磁同步电机扩展状态方程以及扩展滑模观测器,将滑模控制和模型参考自适应结合在一起,来提取电机转速。从仿真和实验两方面,对新方法与传统滑模观测器方法作了详细的比较,结果验证了新方法可以避免传统滑模参数估计时存在的抖动问题,同时具有良好的动静态性能以及更高的估计精度。

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