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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。
For a class of slip frequency type vector control AC speed regulation system, a sliding mode control scheme with load disturbance rate of change is proposed and a method of observing the rate of change of load disturbance is given. The simulation results show that this scheme can make the system get excellent dynamic and static performance, especially the system has a strong ability to restrain the load disturbance.