计算机与现代化
計算機與現代化
계산궤여현대화
COMPUTER AND MODERNIZATION
2009年
8期
65-67,72
,共4页
模糊控制%Smith预估器%自校正控制
模糊控製%Smith預估器%自校正控製
모호공제%Smith예고기%자교정공제
fuzzy control%Smith predictive controller%adaptive controll
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預估控製是解決時滯繫統控製的有效方法,但其對繫統模型參數的精確要求限製瞭其應用.而模糊控製本質上屬于PD控製,無法消除繫統的穩態誤差.文中設計瞭一種自校正模糊Smith 控製器,結閤模糊控製、Smith預估器及自校正控製的優點,既保持瞭模糊控製魯棒性較彊的特點,又消除瞭繫統的穩態誤差,且改善瞭繫統的動態性能.倣真結果錶明瞭自校正模糊控製器的有效性和優越性.
Smith예고공제시해결시체계통공제적유효방법,단기대계통모형삼수적정학요구한제료기응용.이모호공제본질상속우PD공제,무법소제계통적은태오차.문중설계료일충자교정모호Smith 공제기,결합모호공제、Smith예고기급자교정공제적우점,기보지료모호공제로봉성교강적특점,우소제료계통적은태오차,차개선료계통적동태성능.방진결과표명료자교정모호공제기적유효성화우월성.
Smith predictive controller is an effective method to control the time delay systems, however, the drawback of high rigourness of Smith controller limits its application. Fuzzy-Smith control belongs to PD control and can't avoid the steady-state error. An adaptive-Fuzzy-Smith controller is designed, combining the advantages of fuzzy control, Smith predictive control and adaptive 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.
