输入约束系统的滚动时域输出反馈控制方法研究

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.

H∞ Output Feedback Control of Constrained Systems via Moving Horizon Strategy