Two-stage optimization of permanent magnet synchronous motor taking into account the THD factor

In the paper an algorithm and software for the structure optimization of the permanent magnet synchronous motor is presented. The software consists of two modules: a numerical model of the PMSM motor and an optimization solver OPT. Numerical implementation is based on finite element method. For the motor structure optimization the genetic algorithm has been applied. Decomposition of optimization task has been proposed. The two-stage optimization has been executed. Selected results of the calculation and optimization are presented and discussed