Abstract: “This paper presents an analysis by which the dynamic performances of a permanent magnet brushless dc (PMBLDC) motor drive with different speed controllers can be successfully predicted. The control structure of the proposed drive system is described. The dynamics of the drive system with a classical proportional-integral (PI) and a Fuzzy-Logic (FL) speed controllers are presented. The simulation results for different parameters and operation modes of the drive system are control signals investigated and compared. The results with FL speed controller show improvement in transient response of the PMBLDC drive over conventional PI controller.”

Keywords: PMBLDC motor drive, multi level inverter, PI controller, Fuzzy Controller.