Generator Characteristics of an Interior Permanent Magnet Machine Designed by a Topology Optimization with GA Considering Cluster of Materials

Abstract

　This paper designs the rotor structure of a permanent magnet (PM) synchronous generator by a topology optimization method. The implemented optimization method is the Genetic algorithm coupling the concept of cluster of materials and a cleaning procedure, and then it assumes four hexahedron PMs similar to the rotor shapes obtained by the proposed method for reasons of manufacturing ease. This paper manufactures the optimized rotor structure, which has a high flux linkage. Experimental results clarify that the voltage regulation is improved and that the efficiency is improved.