Drive Cycle Analysis of a Permanent Magnet Traction Motor based on Magnetostatic Finite Element Analysis

The paper introduces a method for the drive cycle performance analysis of a permanent magnet traction motor based on a fast magnetostatic finite element analysis. The flux linkage and torque behavior of the permanent magnet synchronous machine is studied by a nonlinear magnetostatic finite element analysis as a function of direct- and quadrature-axis stator current components. In the analytical machine performance analysis, the current combinations producing the desired torque and minimizing the losses are determined. The iron loss is calculated with the time transient finite element analysis at no load. The maximum stator flux linkage, limited by the battery voltage, is taken into account. The drive cycle analysis, based on optimal current component surfaces, is carried out for a traction motor of an electric sports car. The results are compared with values measured for the drive cycle on a race track.     «

The paper introduces a method for the drive cycle performance analysis of a permanent magnet traction motor based on a fast magnetostatic finite element analysis. The flux linkage and torque behavior of the permanent magnet synchronous machine is studied by a nonlinear magnetostatic finite element analysis as a function of direct- and quadrature-axis stator current components. In the analytical machine performance analysis, the current combinations producing the desired torque and minimizing the...     »