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A Method of the Stator Flux EKF Estimation for Induction Motors Based on Genetic Algorithm Optimizing
Author(s): 
Pages: 64-70
Year: Issue:  9
Journal: Transactions of China Electrotechnical Society

Keyword:  磁链估计扩展卡尔曼滤波器直接转矩控制遗传算法;
Abstract: 定子磁链估计的精度直接关系到异步电机直接转矩控制(DTC)的控制效果,本文提出了一种基于扩展卡尔曼滤波器(EKF)的定子磁链观测方法,该方法选取DTC反馈通道中多个主要参数作为状态变量进行联合滤波估计,为保证EKF算法滤波参数的准确性,采用遗传算法(GA)对EKF中的系统噪声矩阵和测量噪声矩阵进行了优化处理.通过使用该方法设计的磁链观测器与DTC构成闭环系统进行仿真实验表明,滤波参数优化后的EKF...
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