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Advances in Power Electronics
Volume 2012 (2012), Article ID 286861, 9 pages
http://dx.doi.org/10.1155/2012/286861
Research Article

Controller Design Considerations for ACM APFC Systems

Department of Electrical Engineering and Computer Science, University of California, Irvine, CA 92697, USA

Received 27 February 2012; Revised 6 August 2012; Accepted 7 August 2012

Academic Editor: C. M. Liaw

Copyright © 2012 Alexander Abramovitz. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper is concerned with performance of the current shaping network in Average Current Mode (ACM) Active Power Factor Correction (APFC) systems. Theoretical expressions for the ripple components are derived. Then, ripple interaction and impact on the current loop reference signal are investigated. A modification of the controller network is suggested that results in an improved Total Harmonic Distortion (THD). Design guidelines are suggested. The theoretical predictions were validated by simulation.