Improved power quality flyback converter fed PMBLDCM drive

This paper presents the design, modeling and simulation of a flyback converter based PFC topologies for feeding a permanent magnet brushless DC motor drive (PMBLDCMD). The flyback PFC converter is operated with the current multiplier control and voltage follower control schemes for improvement of power quality (PQ) at ac mains while controlling the operation of PMBLDCMD in wide range of speeds and input AC voltage variation. Simulated performance of a PMBLDCMD is given to demonstrate effectiveness of proposed control strategies for improving various power quality indices under dynamic and steady state operating conditions.