Decentralized control for uncertain interconnected systems with input saturation
Yuechao Ma, Qingling Zhang · Dianji yu kongzhi xuebao · 2006
It is a common phenomenon to input saturation in practical control system.Neglecting input saturation while designing controller,the stability of the closed loop system will not be insured.As for the fact,the problem of decentralized control for uncertain nonlinear interconnected systems with input saturation is discussed.For a class of uncertain nonlinear large-scale interconnected systems with input saturation,the problem of decentralized robust stabilization for the systems is studied by using Riccati equation approach,Lyapunov stable theory and matrix theory.A sufficient condition of the system of decentralized robust control is given,and a kind of decentralized robust controller is designed.Meanwhile,a class of uncertain nonlinear similar large-scale interconnected systems with input saturation is considered.Since similar structure for the systems,the decentralized stabilization conditions for the nonlinear similar systems with input saturation is given,and the condition is simple.