Rational Design Optimization Method for Reducing Cost and Improving Performance of Commonalized IPM Motors

Abstract

In this paper, we propose an economically-efficient optimal design method of different-size interior permanent magnet (IPM) motors to maximize their efficiency. Since the homothetic shape is used, the optimization design is, at once, performed. The use of the commonalized design can reduce the productive costs. Game theory is employed as an optimization method. The game theory can simultaneously increase the efficiency of all the interior permanent magnet motors with the common and homothetic shape. So far, there are no previous reports considering both the "economical efficiency" and the motor performance simultaneously. Therefore, the proposed optimal design method of the commonalized different-size interior permanent magnet motors using the game theory method achieves a high electrical efficiency in addition to the economical efficiency due to design optimization.