摘要
针对直流电机速度控制系统负载的未知时变特性和被控对象参数的不确定性,设计了一种等效负载扰动观测器;并通过构造速度误差的Lyapunov函数,设计了一种新的基于等效负载扰动观测器的变结构鲁棒控制器。仿真研究结果表明,所设计的速度控制系统对负载扰动的变化和参数的时变性具有较好的控制效果和鲁棒性,对不同形式的速度给定信号具有较好的跟踪性能。
An equivalent load disturbance observer is proposed for the DC motor speed control system with uncertain load and parameters, and a new variable-structure robust controller is designed by constructing the Lyapunov function of speed error. Simulation results show that the designed system has good tracking properties to different kinds of speed signal and robustness to the uncertainty of the load and parameters.
出处
《电机与控制学报》
EI
CSCD
北大核心
2002年第4期297-300,共4页
Electric Machines and Control
