Abstract:
This paper investigates the periodic event-triggered sliding mode control (SMC) of the permanent magnet synchronous motor (PMSM). The periodic event-triggered mechanism is introduced to schedule the transmission of the system state from sensors to the controller for saving communication resources. Firstly, the sliding mode controller is synthesized based on the traditional event-triggered mechanism. By designing the event-triggered conditions, sufficient criteria for the existence of the actual sliding mode are given, and the robust actual stability of the controlled system is guaranteed. And then the SMC problem is further considered for the periodic event-triggered scheme. By considering the characteristics of the periodic event-triggered mechanism, the upper bound of the error between two adjacent sampling times is estimated. The selection criteria of the sampling period and the control gain are provided for ensuring the robust actual stability of the controlled system and the existence of the practical sliding mode. Finally, simulation results illustrate the effectiveness of the proposed controller.