Title :
Nonlinear observer design for a varying-order switched system with application to heat exchangers
Author :
Cheng, Tao ; Asada, H. Harry
Abstract :
In this paper, a switched nonlinear observer design for a varying-order switched system is presented with convergence conditions. It has been implemented to estimate the state variables of the evaporator under varying refrigerant phase transitions which is a switched system with varying order. The convergence of the switched observer is proved using contraction theory. The switched observer design is validated by numerical simulations
Keywords :
control system synthesis; heat exchangers; nonlinear control systems; numerical analysis; observers; time-varying systems; contraction theory; convergence condition; evaporator; heat exchanger; numerical simulation; state variable estimation; switched nonlinear observer design; varying refrigerant phase transition; varying-order switched system; Heat transfer; Lyapunov method; Nonlinear control systems; Nonlinear systems; Phase estimation; Refrigerants; Student members; Switched systems; Temperature control; USA Councils;
Conference_Titel :
American Control Conference, 2006
Conference_Location :
Minneapolis, MN
Print_ISBN :
1-4244-0209-3
Electronic_ISBN :
1-4244-0209-3
DOI :
10.1109/ACC.2006.1657159
