On considering saturation and cross-coupling effects for copper loss minimization on highly anisotropic synchronous machines

In this paper, the influence of saturation and cross-coupling effects on the copper loss minimization for synchronous machines with strong saliencies, especially the PMa-SynRM and RSM are analyzed. It is shown that state-of-the-art methods for saturation consideration through the absolute inductances fail for these machines A novel method for Maximum Torque per Ampere estimation, which includes the consideration of these effects through the use of differential inductances, is proposed and its effectiveness is shown through Finite Element Analysis.