Output Feedback CNF Control for Output Regulation Problem of Linear System with Input Saturation
To improve the transient performance,the composite nonlinear feedback (CNF) control technique is introduced to solve the output regulation problem of linear systems with input saturation.Under the assumption that both the states of plant and exo-system are not measurable for feedback,an full state observer is designed to construct an output feedback CNF control law.The output feedback CNF controller is constructed based on a state feedback control law that solves the output regulation problem and the state observer.The solvability of the output regulation problem by output feedback CNF control is established which shows that the nonlinear feedback part does not change the solvability condition of the output regulation problem.The introducing of nonlinear feedback part in the CNF control law provides an extra degree of freedom to improve the transient performance.By appropriately choosing the linear feedback gain and the nonlinear feedback gain in the CNF control law can significantly improve the transient performance of the controlled output which is illustrated by a disturbance rejection problem.
composite nonlinear feedback output regulation input saturation output feedback
Xiaoyan Lin Weiyao Lan
Department of Automation, Xiamen University, Xiamen, 361005
国际会议
the 25th Chinese Control and Decision Conference(第25届中国控制与决策会议)
贵阳
英文
5159-5164
2013-05-01（万方平台首次上网日期，不代表论文的发表时间）