Design and rating comparisons of PWM voltage source rectifiers and active power filters for AC drives with unity power factor Academic Article uri icon


  • Given terminal constraints of unity power factor in ac drive applications, two ac drives are possible: one with a pulse-width modulation voltage source rectifier (PWM-VSR) and the other using a diode rectifier and an active power filter. Despite numerous publications for the two drives, the features and advantages between them have not been clearly explained. This paper presents a theoretical analysis and systematic comparison between the two drive topologies. Converter kVA ratings, dc-link voltage requirements, switch ratings, semiconductor losses, and reactive component designs are considered for the evaluations. 2005 IEEE.

published proceedings


author list (cited authors)

  • Kwak, S., & Toliyat, H. A.

citation count

  • 49

complete list of authors

  • Kwak, S||Toliyat, HA

publication date

  • September 2005