Optimization of the synchronous motor with hybrid permanent magnet excitation system

Abstract

Purpose

The purpose of this paper is to elaborate an algorithm and the software for the rotor structure optimization of the permanent magnet synchronous motor (PMSM) with a magnet composed of two materials made with the use of different technologies: sintered Neodymium magnets and powder dielectromagnets. To execute of optimization of selected motor structure using the non-deterministic procedure.

Design/methodology/approach

The mathematical model of the devices includes: the equation of the electromagnetic field, the electric circuit equations and equation of mechanical motion. The numerical implementation is based on finite element method and step-by-step algorithm. The genetic algorithm has been applied in the optimization procedures. The computer code has been developed.

Findings

The elaborated computer software has been applied for the optimization and design of PMSMs. The elaborated algorithm has been tested and a good convergence has been attained. The parameters of two optimal structures of PMSM motors have been compared.

Originality/value

The presented approach and computer software can be successfully applied to the design and optimization of different structure of PMSM with different type of rotors.

Citation

Knypiñski, Ł., Nowak, L. and Demenko, A. (2015), "Optimization of the synchronous motor with hybrid permanent magnet excitation system", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 34 No. 2, pp. 448-455. https://doi.org/10.1108/COMPEL-08-2014-0216