Research on the motor current closed loop control in dual motor hybrid system

Aiming at the problems of complex calculation, poor stability and sensitivity to system parameters in the field-weakening control of permanent magnet synchronous motors, an improved field-weakening structure based on voltage utilization rate is designed to enhance the control performance of the system. By using voltage feedback, the output current and torque of the motor are made more stable when the DC bus voltage fluctuates. A control system is established, and the effectiveness and feasibility of the scheme are verified through vehicle tests.