Position synchronous control of dual PMSM system based on PDFF+composite control with parameter adaptive adjustment

To improve the tracking and synchronous performance of the dual PMSM system, this paper proposes a position synchronous control of dual PMSM system based on PDFF+composite control with parameter adaptive adjustment. Firstly, a mathematical model of the dual PMSM system is established. Then, the advantages, disadvantages, and limitations of the traditional cross coupling+single axis three loop control structure, PDFF based control structure, and PDFF based feedforward proportional composite control structure are analyzed. Then, a PDFF+composite control structure based on parameter adaptive adjustment is proposed, and it can improve the system's motion control and synchronous control effect by adaptively adjusting the velocity loop PDFF feedforward coefficient and cross coupling coefficient. Finally, the effectiveness of the proposed position synchronous control strategy is verified through Matlab/Simulink simulation.