Approximation of general nonlinear control systems with linear time varying systems

2010 ◽  
Author(s):  
M.R. Ramezani ◽  
A. V. Kamyad
Keyword(s):  
Nonlinear Control ◽  
Control Systems ◽  
Linear Time ◽  
Nonlinear Control Systems ◽  
Time Varying ◽  
Time Varying Systems

On the practical h-stabilization of nonlinear time-varying systems: application to separately excited DC motor

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hanen Damak ◽  
Mohamed Ali Hammami ◽  
Abir Kicha
Keyword(s):  
Control Systems ◽  
Design Methodology ◽  
Dc Motor ◽  
Lyapunov Theory ◽  
Fundamental Result ◽  
Nonlinear Control Systems ◽  
Time Varying ◽  
Content Type ◽  
Time Varying Systems ◽  
Lyapunov Second Method

Purpose The purpose of this paper is to report on the global practical uniform h-stabilization for certain classes of nonlinear time-varying systems and its application in a separately excited DC motor circuit. Design/methodology/approach Based on Lyapunov theory, the practical h-stabilization result is derived to guarantee practical h-stability and applicated in a separately excited DC motor. Findings A controller is designed and added to the nonlinear time-varying system. The practical h-stability of the nonlinear control systems is guaranteed by applying the appropriate controller based on Lyapunov second method. Another effective controller is also designed for the global practical uniform h-stability on the separately excited DC motor with load. Numerical simulations are demonstrated to verify the effectiveness of the proposed controller scheme. Originality/value The introduced approach is interesting for practical h-stabilization of nonlinear time-varying systems and its application in a separately excited DC motor. The original results generalize well-known fundamental result: practical exponential stabilization for nonlinear time-varying systems.

Sign in / Sign up

Export Citation Format

Share Document