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Sensorless control of PMSG based on sliding mode observer and software phase locked-loop
Pages: 49-54
Year: Issue:  1
Journal: Electric Machines and Control

Abstract: 实现永磁同步发电机矢量控制的前提在于电机转速与转子位置信息的准确获取.为此,提出一种基于滑模观测器与软件锁相环的无传感器方法,该方法直接在转子同步旋转d-q坐标系中采用滑模观测器估计电机感应电动势,再将估计出的感应电动势作为软件锁相环输入进行转速与转子位置的估计.分析、推导出了感应电动势滑模观测器与软件锁相环的数学模型,通过仿真测试了该法在模型参数与电机实际参数相差较大的情况下,对电机多种工况的估...
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