This paper investigates the influence of harmonic distortion on life reduction of power capacitors when connected in parallel to power converters operating with randomly-varying load. A probabilistic life model is employed in order to evaluate the effectiveness of standard design procedures for capacitors operating in distorted regime. 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 shunt filter plus 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. © 1998 IEEE.

Considerations on the life performance and installation practice of shunt capacitors in the presence of harmonics generated by Ac/Dc converters

Cavallini A.;Ghinello I.;Mazzanti G.;Montanari G. C.
1999

Abstract

This paper investigates the influence of harmonic distortion on life reduction of power capacitors when connected in parallel to power converters operating with randomly-varying load. A probabilistic life model is employed in order to evaluate the effectiveness of standard design procedures for capacitors operating in distorted regime. 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 shunt filter plus 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. © 1998 IEEE.
Cavallini A.; Ghinello I.; Mazzanti G.; Montanari G.C.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/886315
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