Loss-Minimization Control for Interior Permanent-Magnet Synchronous Motor Drives
Abstract
This paper proposes a loss-minimization algorithm (LMA) for interior permanent-magnet synchronous motor (IPMSM). Based on loss model of permanent magnet synchronous motor (PMSM), the optimal d-axis component of the stator current is given to minimize power losses. This current is considered in two cases: loss minimizing in the voltage and current limit interior and loss minimizing on the voltage limit boundary. Flux saturation is also considered to improve the accuracy of the algorithm. Finally, the simulation results using the proposed algorithm and an algorithm introduced recently are compared and evaluated .