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An adaptive inverse control scheme of the limited system with input saturation

XIE Shu-ying,ZHANG Cheng-jin   

  1. School of Control Science and Engineering,Shandong University,Jinan 250061,China
  • Received:2006-02-10 Revised:1900-01-01 Online:2006-12-24 Published:2006-12-24
  • Contact: XIE Shu-ying

Abstract: To most part of the actuators, their inputs are restricted. As a result, the control performance will be deteriorated or failed, if the controlling signals are input directedly into the contralled object. A new constrained adaptive inverse control scheme is proposed for a system which input is saturated. The main idea is that the saturator and the original plant are regarded as a new plant which is used to model the controller. A Lyapunov function is constructed to derive the new weights updating algorithm for controller and guarantee the stability of the control system which leads to the least influences of saturation. The simulations of a watertanker temperature control system show the effectiveness of the scheme and the robustness against input noises.

Key words: adaptive inverse control, robustness0 , input saturation

[1] FU Min-yue . On guaranteed cost control of linear systems with input saturation [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2007, 37(4): 1-5 .
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