自动化学报
自動化學報
자동화학보
ACTA AUTOMATICA SINICA
2007年
11期
1176-1181
,共6页
王娟%刘志远%陈虹%于树友%裴润
王娟%劉誌遠%陳虹%于樹友%裴潤
왕연%류지원%진홍%우수우%배윤
Constrained systems%H∞ performance%output feedback%LMI optimization%moving horizon control
This paper addresses the H∞ output feedback control problem for discrete-time systems with actuator saturation.Initially, a constrained H∞ output feedback control approach is presented in the framework of linear matrix inequalities (LMI)optimization. Under certain assumptions on the disturbance energy bound, closed-loop H∞ performance is achieved. Furthermore,the moving horizon strategy is applied to an online management of the control performance so that the closed-loop system can satisfy control constraints in the case of unexpected large disturbances. A dissipation constraint is derived to achieve the moving horizon closed-loop system dissipative. Simulation results show that the constrained H∞controller works effectively under the disturbance assumption and that the moving horizon H∞controller can trade-off automatically between satisfying control constraints and enhancing performance.
