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感应电机静态补偿电压模型及其稳定性分析

, PP. 117-125

Keywords: 感应电机,静态补偿电压模型,李雅普诺夫线性化,稳定性分析,矢量控制

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Abstract:

基于静态补偿电压模型磁链观测器的矢量控制系统在电机运行于低速时,稳定性不佳,负载能力不足。从静态补偿电压模型原理出发,深入分析了磁链静态补偿原理,并结合感应电机模型得出基于静态补偿电压模型的矢量控制系统磁链非线性动态方程。同时利用李雅普诺夫线性化理论,对非线性磁链系统进行局部线性化建立起磁链线性化模型,通过分析线性化系统的稳定性,给出了一种判别磁链非线性系统在平衡点处稳定性的方法。从理论上分析和证明了基于静态补偿电压模型磁链观测的感应电机矢量控制系统分别在高、低速运行时的稳定性。对理论分析给出了仿真和实验验证。

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