L₂-gain analysis for networked predictive control systems based on switching method

Abstract

This article deals with the problem of L ₂-gain for a class of networked control systems with time-varying network delay in both forward and feedback channels. An improved network predictive control scheme is proposed to compensate the effects of network delay and data dropout using a switching control strategy. Based on the average dwell time method, the restrictions that the original delay-compensation strategy imposes on the subsystems are relaxed and a sufficient condition for weighted L ₂-gain is developed for a class of switching signal. An example illustrates the effectiveness of the proposed method.

Keywords:

• switched system
• average dwell time
• networked predictive control systems
• time-varying network delay
• L ₂-gain