An Optimal Design of BLDC Motor Using Rare Earth Magnet By Niching Genetic Algorithm

Niching 유전 알고리즘을 이용한 희토류 자석 BLDC 모터의 최적설계

In this paper, we discussed an optimal design of BLDC motor using rare earth magnet. In motor design using rare earth magnet, because of the characteristics that rare earth magnets have high remanence, the effect of saturation of steel has to be considered. For this, we used nonlinear finite clement method. For optimal design, a Niching genetic algorithm is used. As a result, we found out a set of BLDC motor shapes increasing motor efficiency, and decreasing cogging torque.