Abstract:
This paper analyzes the amplitude dependent behavior of nonlinear sampled-data control systems in a frequency domain. We apply the robust stability condition for nonlinea...Show MoreMetadata
Abstract:
This paper analyzes the amplitude dependent behavior of nonlinear sampled-data control systems in a frequency domain. We apply the robust stability condition for nonlinear discrete-time feedback systems (which was derived in our previous papers) to a sampled-data control system containing a single nonlinear element in the forward path. In addition, we derive an instability condition for that type of nonlinear feedback system. By considering restricted areas (sectors) in the nonlinear characteristic, we can accurately predict and estimate the existence of a sustained oscillation whether it is periodic or not. Two ways of stabilizing nonlinear sampled-data control systems will be also examined.
Published in: 2001 European Control Conference (ECC)
Date of Conference: 04-07 September 2001
Date Added to IEEE Xplore: 27 April 2015
Print ISBN:978-3-9524173-6-2