Stacked Switched Capacitor Energy Buffer Architecture
Name
Chen Stacked Switched.pdf
Size
2.93 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Chen, Minjie
Perreault, David J.
Afridi, Khurram
Date Issued
November 2013
Journal
IEEE Transactions on Power Electronics
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Chen, Minjie, Khurram K. Afridi, and David J. Perreault. “Stacked Switched Capacitor Energy Buffer Architecture.” IEEE Trans. Power Electron. 28, no. 11 (n.d.): 5183–5195.
Version
Author's final manuscript
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. This paper presents a stacked switched capacitor (SSC) energy buffer architecture and some of its topological embodiments, which when used with longer life film capacitors overcome this limitation while achieving effective energy densities comparable to 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 is shown that the SSC energy buffer can successfully replace limited-life electrolytic capacitors with much longer life film capacitors, while maintaining volume and efficiency at a comparable level.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1109/TPEL.2013.2245682
