Observer-based PID control for fuzzy dynamic systems with memory triggering protocol

Abstract

This paper addresses the issue of observer-based proportional–integral–derivative control for Takagi–Sugeno fuzzy dynamic systems using a memory triggering protocol. To tackle the challenges of managing nonlinear systems, the Takagi–Sugeno fuzzy approach is employed to approximate these systems with a series of local linear models. A novel memory event-triggering mechanism is introduced, utilizing a computer's storage unit to store historical data and adjust the triggering threshold based on this data, thereby reducing unnecessary network resource usage. Given that the system state can be affected by external disturbances and become unpredictable, an observer-based proportional–integral–derivative controller is designed to manage these uncertainties. Finally, a car-damper-spring model is presented to validate the proposed methodology.