Variable universe adaptive fuzzy sliding mode projective synchronization of hyperjerk system based on disturbance observer

Abstract

Abstract In this paper, a sliding mode projective synchronization strategy based on disturbance observer and fuzzy system is presented to implement projective synchronization of hyperjerk system with low time-varying disturbance and white noise. Theoretical analysis and numerical calculation show that the disturbance observer can approach the low time-varying disturbance very well. The application of disturbance observer reduces the chattering of the controller. Variable universe adaptive fuzzy control (VUAFC) method is utilized to further reduce the chattering phenomenon. The simulation results demonstrate the effectiveness of the proposed controller.

Keywords

• Hyperjerk system
• Sliding mode control
• Disturbance observer
• Low time-varying
• Variable universe adaptive fuzzy control