Title :
Describing function analysis of uncertain nonlinear systems using the Kharitonov approach
Author :
Fadali, M.S. ; Chachavalvoong, N.
Author_Institution :
Dept. of Electr. Eng., Nevada Univ., Reno, NV, USA
Abstract :
The describing function method is used to predict the existence of limit cycles in a system with a separable nonlinearity. The results are obtained graphically or analytically by determining the intersection of the frequency for the linear subsystem and the describing function. Here, the authors combine well known Kharitonov theorems with the describing function to test the stability of uncertain systems. An example is provided to illustrate the new method
Keywords :
control system analysis; describing functions; limit cycles; nonlinear control systems; stability; uncertain systems; Kharitonov approach; describing function analysis; limit cycles; linear subsystem; separable nonlinearity; stability; uncertain nonlinear systems; Circuit stability; Control systems; Feedback control; Frequency response; Limit-cycles; Low pass filters; Nonlinear filters; Nonlinear systems; System testing; Uncertain systems;
Conference_Titel :
American Control Conference, Proceedings of the 1995
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2445-5
DOI :
10.1109/ACC.1995.532385
