Title:
Condition Monitoring of Electrolytic Capacitors for Power Electronics Applications

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dc.contributor.advisor Harley, Ronald G.
dc.contributor.advisor Divan, Deepakraj M.
dc.contributor.author Imam, Afroz M. en_US
dc.contributor.committeeMember Habetler, Thomas G
dc.contributor.committeeMember J. Rhett Mayor
dc.contributor.committeeMember Jerome Meisel
dc.contributor.committeeMember Milor, Linda S.
dc.contributor.department Electrical and Computer Engineering en_US
dc.date.accessioned 2007-05-25T17:11:20Z
dc.date.available 2007-05-25T17:11:20Z
dc.date.issued 2007-04-09 en_US
dc.description.abstract The objective of this research is to advance the field of condition monitoring of electrolytic capacitors used in power electronics circuits. The construction process of an electrolytic capacitor is presented. Descriptions of various kinds of faults that can occur in an electrolytic capacitor are discussed. The methods available to detect electrolytic capacitor faults are discussed. The effects of the capacitor faults on the capacitor voltage and current waveforms are investigated through experiments. It is also experimentally demonstrated that faults in the capacitor can be detected by monitoring the capacitor voltage and current. Various ESR estimation based detection techniques available to detect capacitor failures in power electronics circuits are reviewed. Three algorithms are proposed to track and detect capacitor failures: an FFT based algorithm, a system modeling based detection scheme, and finally a parameter estimation based algorithm. The parameter estimation based algorithm is a low-cost real-time scheme, and it is inexpensive to implement. Finally, a detailed study is carried out to understand the failure mechanism of an electrolytic capacitor due to inrush current. en_US
dc.description.degree Ph.D. en_US
dc.identifier.uri http://hdl.handle.net/1853/14472
dc.publisher Georgia Institute of Technology en_US
dc.subject Parameter en_US
dc.subject Estimation en_US
dc.subject Inrush current en_US
dc.subject Failure mechanism en_US
dc.subject Electrolytic capacitor en_US
dc.subject Condition monitoring en_US
dc.title Condition Monitoring of Electrolytic Capacitors for Power Electronics Applications en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Divan, Deepakraj M.
local.contributor.corporatename School of Electrical and Computer Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication db2b03a1-dd75-4a65-94bb-79e8197e26ea
relation.isOrgUnitOfPublication 5b7adef2-447c-4270-b9fc-846bd76f80f2
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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