According to the premature convergence of particle swarm optimization(PSO)algorithm
a diversity-guided attractive and repulsive particle swarm optimization(DGARPSO)algorithm is proposed for an optimal design of dry-type air-core reactor. Mutation is introduced into attractive and repulsive PSO(ARPSO)algorithm
which means that mutation is implemented to the particle positions in certain probability when the diversity of evolution population or personal best population gets less than the lower limitation. Thus the particles are promoted to fly away from the population aggregation position to effectively reduce the premature convergence of PSO algorithm in case of lower population diversity. The effects of uniform mutation
Gaussian mutation and Cauchy mutation on the optimization results are comparatively discussed. The simulation for a 50 kV·A dry-type air-core reactor shows the better global search ability and performance of DGARPSO algorithm than GA algorithm
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