摘要
Smith预估控制是解决时滞系统控制的有效方法,但其对系统模型参数的精确要求限制了其应用。而模糊控制本质上属于PD控制,无法消除系统的稳态误差。文中设计了一种自校正模糊Smith控制器,结合模糊控制、Smith预估器及自校正控制的优点,既保持了模糊控制鲁棒性较强的特点,又消除了系统的稳态误差,且改善了系统的动态性能。仿真结果表明了自校正模糊控制器的有效性和优越性。
Smith predictive controller is an effective method to control the time delay systems, however, the drawback of high ri- gourness of Smith controller limits its application. Fuzzy-Smith control belongs to PD control and can＇ t avoid the steady-state er- ror. An adaptive-Fuzzy-Smith controller is designed, combining the advantages of fuzzy control, Smith predictive control and a- daptive control, it keeps the good robustness of fuzzy control and improves the dynamic performance of the system. The simulation results show the effectiveness and superiority of the adaptive-Fuzzy-Smith controller.
出处
《计算机与现代化》
2009年第8期65-67,72,共4页
Computer and Modernization
