Design of Interior Permanent Magnet Synchronous Motor Complex Vector Current Regulator

Based on the flux linkage equations of the interior permanent magnet synchronous motor (IPMSM), the relationship between motor current and voltage is derived to establish a discretized motor model. The variation pattern of the discretized motor model poles with stator frequency is analyzed. A complex vector controller is designed based on the motor model to achieve zero-pole cancellation between the controller and the motor, realizing dynamic decoupling of the controller and eliminating coupling effects caused by pole variations. Experimental verification of the control strategy demonstrates it's effectiveness in controlling the IPMSM, exhibiting good dynamic and steady-state performance. The system shows rapid response to torque changes while maintaining stable voltage and current during torque transients, with no significant oscillations observed.