Stacked switched capacitor energy buffer architecture

Minjie Chen, Khurram K. Afridi, David J. Perreault

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

Electrolytic capacitors are often used for energy buffering applications, including buffering between single-phase ac and dc. While these capacitors have high energy density compared to film and ceramic capacitors, their life is limited and their reliability is a major concern. This paper presents a stacked switched capacitor (SSC) energy buffer architecture and some of its topological embodiments which overcome this limitation while achieving comparable effective energy density without electrolytic capacitors. The architectural approach is introduced along with design and control techniques. A prototype SSC energy buffer using film capacitors, designed for a 320 V dc bus and able to support a 135 W load has been built and tested with a power factor correction circuit. It demonstrates the effectiveness of the approach.

Original languageEnglish (US)
Title of host publicationAPEC 2012 - 27th Annual IEEE Applied Power Electronics Conference and Exposition
Pages1404-1413
Number of pages10
DOIs
StatePublished - Apr 30 2012
Externally publishedYes
Event27th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2012 - Orlando, FL, United States
Duration: Feb 5 2012Feb 9 2012

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other27th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2012
CountryUnited States
CityOrlando, FL
Period2/5/122/9/12

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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