Four Quadrant PMSM Drive System via Backstepping and Hamiltonian Control

The DC bus voltage overshoot and poor tracking effect of motor speed are the common problems in the four quadrant permanent magnet synchronous motor drive system, a hybrid control strategy is designed. The control objectives are as follow: (i) the DC bus voltage can fast track the reference voltage; (ii) the power factor is close to one on the grid side; (iii) the motor runs in four quadrant and have a good speed tracking. The models of the grid-side and PMSM are established respectively. The controller is designed through the PCH system and backstepping. Simulation results show that the system' s DC bus voltage has no overshoot and the motor speed tracking effect is better, the design scheme is viable.