Title :
Design of an input filter for power factor correction (PFC) AC to DC converters employing an active ripple cancellation
Author :
Lee, D.Y. ; Cho, B.H.
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
An active input filter for a power factor correction (PFC) circuit employing ripple current cancellation is proposed to reduce the filter´s size and cost. Switching ripple current can be filtered by an active circuit from the line current. Using a single stage passive filter with an active filter compensation circuit, a high filter can be synthesized to meet the electromagnetic interference (EMI) and power factor requirements. Analysis of the active filter and its design procedure are detailed. Simulation results are presented to verify the high order filter characteristics of the proposed scheme
Keywords :
AC-DC power convertors; active filters; compensation; electromagnetic interference; harmonic distortion; power factor correction; power filters; power system harmonics; rectifying circuits; AC-to-DC power converters; EMI requirements; active input filter design; active ripple cancellation; design procedure; high order filter characteristics; power factor correction; power factor requirements; power harmonic filter; simulation results; switching ripple current; Active circuits; Active filters; Circuit synthesis; Costs; Electromagnetic interference; Passive filters; Power factor correction; Power filters; Reactive power; Switching circuits;
Conference_Titel :
Energy Conversion Engineering Conference, 1996. IECEC 96., Proceedings of the 31st Intersociety
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-3547-3
DOI :
10.1109/IECEC.1996.552958
