Title :
Amplitude dependent analysis and design of nonlinear control systems in a frequency domain
Author :
Okuyama, Yoshifumi ; Takemori, Fumiaki
Author_Institution :
Fac. of Eng., Tottori Univ., Japan
Abstract :
Examines the amplitude dependent behavior of nonlinear feedback systems in a frequency domain. We apply a robust stability condition to a feedback control system containing a nonlinear element in the forward path. In addition, we derive an instability condition for that type of nonlinear feedback system. By using these concepts, we can accurately predict and estimate the existence of a periodic oscillation, that is, a limit cycle in a phase space of the nonlinear dynamical system. Two numerical examples for that type of control system are presented to verify the method
Keywords :
control system analysis; control system synthesis; feedback; frequency-domain analysis; frequency-domain synthesis; nonlinear control systems; nonlinear dynamical systems; robust control; amplitude dependent analysis; amplitude dependent behavior; amplitude dependent design; instability condition; nonlinear feedback systems; periodic oscillation; robust stability condition; Frequency domain analysis; Nonlinear control systems;
Conference_Titel :
SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers
Conference_Location :
Iizuka
Print_ISBN :
0-7803-9805-X
DOI :
10.1109/SICE.2000.889655