Extremum Seeking Control via Sliding Mode with Two Surfaces

Authors:	Xu Rong, The Ohio State University, United States Ozguner Umit, The Ohio State University, United States
Topic:	2.1 Control Design
Session:	Sliding Mode Control I
Keywords:	sliding mode control, sliding surface, adaptive algorithm, SISO, interconnected systems, Nash games.

Abstract

In this paper, we present a new approach of extremum seeking control scheme, which applies two surfaces. Compared to other extremum seeking control algorithms, the new approach produces nearly no oscillation in the control results because the searching signal in this approach is no longer a periodic one. The control accuracy can be guaranteed by choosing two surfaces at a suitable distance. The proof of stability of the approach and several examples are also provided.