交流调速系统含负载扰动变化率的滑模控制

Sliding Mode Control Including Rate of Change of Load Disturbance for AC Regulating Speed System

针对一类滑差频率型矢量控制交流调速系统，提出一种含负载扰动变化率的滑模控制方案，并给出观测负载扰动变化率的方法。仿真结果表明该方案能使系统获得优良的动静态性能，特别是系统对负载扰动具有很强的抑制能力。

This paper presents a sliding mode control scheme for a kind of indirect vector control ac regulating speed systems. The output of the sliding mode controller in the scheme includes load disturbance rate of change. A method of observing load disturbance rate of change is given. The results of simulation show that the scheme enables the system to be of excellent dynamic and static performance. Especially, the scheme makes the system having very strong ability of rejecting load disturbance.