A Review of the Condition Monitoring of Capacitors in Power Electronic Converters

Hammam Abdelaal Hammam Soliman, Huai Wang, Frede Blaabjerg

Research output: Contribution to journalJournal articleResearchpeer-review

191 Citations (Scopus)

Abstract

Capacitors are one type of reliability-critical components in power electronic systems. In the last two decades, many efforts in academic research have been devoted to the condition monitoring of capacitors to estimate their health status. Industry applications are demanding more reliable power electronics products with preventive maintenance. Nevertheless, most of the developed capacitor condition monitoring technologies are rarely adopted by industry due to the complexity, increased cost, and other relevant issues. An overview of the prior-art research in this area is therefore needed to justify the required resources and the corresponding performance of each key method. It serves to provide a guideline for industry to evaluate the available solutions by technology benchmarking, as well as to advance the academic research by discussing the history development and the future opportunities. Therefore, this paper first classifies the capacitor condition monitoring methods into three categories, then the respective technology evolution in the last two decades is summarized. Finally, the state-of-the-art research and the future opportunities targeting for industry applications are given.
Original languageEnglish
JournalI E E E Transactions on Industry Applications
Volume52
Issue number6
Pages (from-to)4976 - 4989
ISSN0093-9994
DOIs
Publication statusPublished - Nov 2016

Keywords

  • Capacitance estimation
  • Capacitance measurement
  • Capacitor health status
  • Condition monitoring
  • Electrolytic capacitors (E-Caps)
  • Flm capacitors
  • Reliability

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