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This paper investigates the influence of harmonic distortion on the life reduction of power capacitors when connected in parallel to power converters operating with randomly-varying loads. A probabilistic life model is employed in order to evaluate the effectiveness of standard design procedures for capacitors operating in distorted regimes. This approach is applied to a working example based on measurement data obtained from a busbar feeding a ski-lift resort. Either a capacitor bank or a system consisting of a shunt filter plus a capacitor bank is considered for reactive power compensation. It is shown that capacitor design made on the basis of voltage derating of 20% may be not sufficient to ensure satisfactory life performance
Published in:
Power Delivery, IEEE Transactions on
(Volume:14
,
Issue:
1
)
Date of Publication: Jan 1999
- Page(s):
- 227 - 234
- ISSN :
- 0885-8977
- INSPEC Accession Number:
- 6132516
- Digital Object Identifier :
- 10.1109/61.736727
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Jan 1999
- Sponsored by :
- IEEE Power & Energy Society
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