Double control strategy of PMSM rotor speed-based traction drive using resolver

Abstract

This study addresses the challenge of speed control in permanent magnet synchronous motors (PMSMs), particularly in complex industrial applications. The research investigates the control of rotor speed in an electric-traction drive scenario. The setup involves an 8kW high-voltage battery powering a 35 kW PMSM through a controlled 3-phase (3-φ ) converter. Sensor feedback provides torque, currents, and voltage data, while a resolver captures speed and position information. The control strategy employs a two-loop algorithm. The outer loop uses a Proportional–integral to achieve zero steady-state error in this design (PI) controller for speed control, while two PI controllers are utilized to govern stator current in the Q and D directions. The input battery is very important in this design to achieve zero steady-state error. During a 0.2 s simulation, the rotor speed demand is incrementally raised from 0 to 1200 RPM. The proposed approach is implemented and verified using the Matlab2020a Simulink environment. The simulation results prove the efficacy of the proposed algorithm efficiently.