Particle swarm optimization based high performance four switch BLDC motor drive

The present publication is directed to utilize particle swarm optimization (PSO) algorithm based PI controller for adjusting the speed of brushless DC motor fed via four switch three phase inverter. inverter topology reduces cost and complexity drive system. High performance response during transient steady state conditions achieved by optimizing gains using POS algorithm. obtained results confirm validity proposed configuration in providing features fast dynamic (the settling time about 0.025 s), with minimized percentage overshot, approximately zero error. Moreover, system shows robustness feature when subjected external load torque disturbances.