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中文摘要：
针对异步电动机的参数不确定性以及外部负载扰动,本文结合动态面技术和反步控制,研究了异步电动机驱动系统的速度调节控制。根据模糊逼近原理来逼近系统中未知的非线性函数,通过引入动态面技术,解决了传统反步控制中由于对虚拟控制函数进行连续求导引起的计算爆炸问题,同时采用反步设计方法构造模糊自适应速度控制器,并利用Matlab进行仿真验证。仿真结果表明,在提出的模糊自适应速度控制器的作用下,异步电动机驱动系统能够克服参数不确定性及负载扰动的影响,确保系统可以快速跟踪给定的期望信号,实现了对异步电动机的有效控制。该研究具有一定的实际应用价值。
英文摘要：
Considering parameter uncertainties and external load disturbance of induction motor, this paper studies speed regulation control of induction motor drive system based on dynamic surface technique and backstepping. Firstly, fuzzy approximation is used to approximate the unknown nonlinearities and we can overcome the problem of explosion of complexity inherent in the traditional backstepping design procedure by dynamic surface control technique. Then backstepping technique is applied to design adaptive fuzzy speed controllers, and Matlab is used to conduct the simulation. The simulation results show that the pro- posed adaptive fuzzy speed controllers can overcome the influences of parameter uncertainties and load dis- turbance as well as achieve a good control effect on induction motor drive system. This study has lots of practical application value.
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