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The stator current and voltage acquisition errors in sensorless vector controlled systerm are analysed systemically in this paper.The reasons that cause the errors and the influence on the performance of sensorless vector controlled systerms are lucubrated.At last , conclusions are made.It is of great referenced value for the reseach of high performance sensorless vector controlled systerms. 针对无速度传感器矢量控制系统定子电压和定子电流获取误差,进行了系统研究,分析了误差产生的原因,以及它们对控制系统性能产生的影响,并对误差产生的各种原因进行了归纳,对研究高性能的无速度传感器矢量控制系统具有参考价值。
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