Parameter Estimation of Dual Three Phase PMSM based on the Recursive Least Square Method

Abstract:
During the operation of a dual three-phase PMSM, variations in parameters due to magnetic field saturation and temperature can impact the dynamic response and control accuracy, and the performance of associated algorithms, including those relying on motor parameters for sensorless control. Hence, this paper addresses the challenge of parameter variations in the operation of dual three-phase PMSM by designing an online parameter estimation strategy based on the recursive least square method. The strategy is developed within the framework of the control model for dual three-phase permanent magnet synchronous motor.