Assessment of Energy Lost in the Winding in Road Vehicle IPM Machines, Considering Saturation, Cross Coupling, Battery State of Charge

The paper proposes a method for the evaluation of power losses in the winding of IPM machines, used in road vehicles. By means of an accurate magnetic model, the method takes into account the magnetic properties of an IPM machine (i.e., high saturation and cross coupling), and the dependence on the battery voltage. Moreover, thanks to a statistical approach, a fast way to account for the influence of battery state of charge is considered.