基于GA+BP网络速度辨识的直接转矩控制

被引：3

作者：

蔡斌军

机构：

[1] 湖南工程学院电气信息学院

来源：

控制工程 | 2012年 / 19卷 / 04期

关键词：

异步电机; 无速度传感器控制; 直接转矩控制; BP网络; 遗传算法; 鲁棒性;

D O I：

10.14107/j.cnki.kzgc.2012.04.044

中图分类号：

TP273 [自动控制、自动控制系统];

学科分类号：

080201 ; 0835 ;

摘要：

针对传统直接转矩控制中存在电流、磁链和转矩脉动较大及速度传感器的使用降低了系统的可靠性,增加了系统的成本等问题,提出了利用遗传算法(GA)优化的BP网络电机速度辨识方法,实现了异步电机无速度传感器直接转矩控制。该方法保持了直接转矩控制固有的转矩响应快和系统鲁棒性强的优点,降低了磁链、转矩脉动,加快了系统的响应速度,并对负载的扰动具有较强的鲁棒性,有效地改善了系统的动、静态性能,实验结果证实了该方法的可行性和有效性。

引用

页码：733 / 736

页数：4

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