摘要
按常规方法设计的伺服系统,在系统对象参数大范围变化时,其动态性能明显下降,以致不能正常工作。本文设计了一种无源自适应控制器,这种控制器可以克服系统对象参数大范围变化或外界干扰的影响,保持系统的频率特性基本不变,因而大大提高系统的鲁棒性。这种控制器可以用无源器件组成,也可以用微机软件实现。实验表明,这种伺服系统,在系统对象参数变化5～10倍时仍能正常工作,表明了该系统具有很强的鲁棒性。
The dynamic performance of the popular designed servo system will decline obviously when the object parameter of the system varies in a big way so that the system can hardly work properly. A passive adaptive controller is introduced in this paper. This controller can not only get rid of the problem mentioned above but overcome the outside disturbance. In this way the frequency response of the system can be basically kept unchanged and the robust of the system can be improved greatly. The test shows that this servo system can work perfectly even though the object parameters of the system increase by 5～10times. It also shows that the new servo system is of a very powerful robust.
出处
《电气传动》
北大核心
1991年第4期15-19,共5页
Electric Drive
关键词
伺服系统
鲁棒性
自适应控制器
Servo system
Robust
Sense degree function
Passive adaptive controller
