感应电动机矢量变换控制的鲁棒性分析和参数自适应实现

Robustness Analysis and Realization of Parameters Adaptive Control for Vector-Controlled Induction Motor

摘要: 采用矢量控制的感应电动机,其控制性能与它激直流电机类似,用这种控制方法,电机的转矩电流分量和磁通电流分量可实现解耦控制。本文讨论矢量控制系统的鲁棒性。针对前馈矢量控制系统中由于电机参数与速度检测小误差造成磁场定向错误,提出了一种新的自适应校正策略,该策略采用PRBS在线辨识技术,算法简单,不需要额外的传感器。最后给出了系统实现及实验结果。

Abstract: Some incorrectness of field orientation system made by motorparameter and speed detecting errors are presented in vcctor control system. The robustness of a field-forward vector control system is studied. A new adaptive correction strategy used PRBS on-line identification technique is proposed. This method is simnle and doesn't need extra sensors.