Bhat, A.H.Mir, T.N.2026-02-062014Proceedings of 6th IEEE Power India International Conference, PIICON 2014, 2014, Vol., , p. -https://doi.org/10.1109/34084POWERI.2014.7117717https://idr.nitk.ac.in/handle/123456789/32574This paper deals with the performance investigation of a single-phase, unidirectional AC/DC Buck converter fed DC motor drive. A simulation model of a single-phase, unidirectional AC/DC Buck converter fed DC motor drive has been developed, and the results have been compared with those obtained in case of a conventional phase-controlled converter fed drive. The results show an inherent power quality improvement in terms of reduced Total Harmonic Distortion (THD) of source current in a Buck-converter fed DC motor drive over a phase-controlled converter fed drive, without compromising on the range of speed control. Such an Improved Power Quality Drive also exhibits Power Factor Correction (PFC) properties to a large extent. The simulation results have been further aided and confirmed by experimental results obtained on a hardware prototype of an AC/DC buckconverter fed DC motor drive. © 2014 IEEE.Improved power quality converters (IPQCs)Input Power Factor (IPF)Pulse width modulation (PWM)Total harmonic distortion (THD)