Title :
Optimal control of nonlinear system based on linear extended state observer
Author :
Xu Zhicai ; Wang Zhishen ; Wang Yongji
Author_Institution :
Key Lab. of Minist. of Educ. for Image Process. & Intell. Control, Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
Systems with unknown nonlinear characteristics and unknown disturbances are linearized using dynamic feedback linearization based on linear extended state observer. Also a method for the parameter regulation is presented. And then for a given performance index, an optimal control law is designed using LQR theory. Finally numerical simulation results demonstrate that this control method can meet the performance requirement with good robustness.
Keywords :
nonlinear systems; observers; optimal control; LQR theory; dynamic feedback linearization; linear extended state observer; nonlinear system; numerical simulation; optimal control law; parameter regulation; performance index; Computer languages; Heating; Mathematical model; Nonlinear systems; Observers; Optimal control; Sliding mode control; Extended State Observer(ESO); LQR; Nonlinear System;
Conference_Titel :
Control Conference (CCC), 2011 30th Chinese
Conference_Location :
Yantai
Print_ISBN :
978-1-4577-0677-6
Electronic_ISBN :
1934-1768
