【摘要】 提出了一种应用在交流伺服系统上的模糊滑模控制策略,把模糊逻辑和滑模控制方法结合起来,能够在不牺牲系统鲁棒性的同时达到削弱抖动的目的,并使系统响应速度快,无超调.利用模糊决策的作用决定控制量的一部分,来解决滑模控制中的抖动问题.这种控制方法适合应用在需要强抗干扰能力的伺服系统中,比如机器人,飞行器等.同时,通过分阶段的加入指数趋近控制方法,来加快系统响应.通过MATLAB6.5的仿真,验证了这种方法的可行性,并取得了很好的控制效果.更多还原

【Abstract】 This paper presented a fuzzy sliding mode strategy applied in the AC servo system. This strategy combines the fuzzy logics with the method of sliding mode control, thus can reduce the chattering without decreasing the robustness of system. The chattering problem of sliding mode control was resolved by using the fuzzy reasoning. The method is suitable for the servo system that need the strong ability of robustness, for example robotics, aircrafts etc. At the same time, the exponent approaching control was added by (grading.) This strategy makes the response of system quicker and no overshoot. Simulation was carried out to demonstrate the feasibility of the proposed method by MATLAB6.5. Very good control effect was (obtained.)更多还原