Event-triggered Position Tracking for Permanent Magnet Synchronous Motor

In this paper, an adaptive event-triggered position tracking control method is proposed for permanent magnet synchronous motors (PMSM). An event-triggered control mechanism is used to reduce updates of controller and save the limited communication resources in network-based remote servo control systems. A dynamic gain is used to counteract the sampling error and uncertainties caused by the unknown time-varying torque. It is verified rigorously that PMSM position tracking under adaptive event-triggered controller can be achieved for any predefined accuracy after a finite time. The simulation results illustrate effectiveness of the proposed control scheme.