Determining the volume optimal parameter values for multi-phase permanent magnet synchronous motors with switchable coil configuration

This contribution suggests an approach to determine the optimal parameter values of permanent magnet flux linkage and saliency ratio of Permanent Magnet Synchronous Motors with multi-phase windings and coil configuration switching. Therein, their influence on volume is calculated analytically for both motor and power electronics in a unified manner identifying promising designs. Of the exemplary design parameters, a maximum volume reduction of 27% can be achieved. An experimental validation supports the analytic calculation of the motor torque vs. speed behavior.