Active disturbance observation rejection control based on port-controlled Hamiltonian with dissipation model for PMSM

The operational performances of the conventional permanent magnet synchronous motor drive systems are affected by complex work conditions, sudden load changes, and external disturbances. For the nonlinear control of a permanent magnet synchronous motor, a passive control method based on ADRC and PCHD with disturbance observation is proposed. The disturbance of the current loop is estimated and compensated by the disturbance observer, and the feedback control law is obtained by interconnection and damping configuration, thus the port-controlled Hamiltonian with dissipation based on perturbation observation is designed. With the introduction of active disturbance rejection control, the system has stronger robustness to external disturbance. The experimental results show that compared with the PI control and ADRC method, the proposed method reduces overshoot effectively and improves the response speed of the system. The control system has the better performance of anti-disturbance.