Minimisation of unbalanced and reactive currents in three-phase asymmetrical circuits with nonsinusoidal voltage
作者:
L.S.Czarnecki,
期刊:
IEE Proceedings B (Electric Power Applications)
(IET Available online 1992)
卷期:
Volume 139,
issue 4
页码: 347-354
年代: 1992
DOI:10.1049/ip-b.1992.0041
出版商: IEE
数据来源: IET
摘要:
Asymmetry of three-phase loads causes deterioration in the power factor and power quality of a circuit. Waveform distortion aggravates these unfavourable effects even more. A method of improving the power factor and the loading symmetry in a three-phase unbalanced circuit under nonsinusoidal conditions is presented. The method discussed is based on the source current orthogonal decomposition into the active, scattered, unbalanced, and reactive components, recently developed for three-phase asymmetrical systems. The paper shows that this current decomposition provides the fundamentals for the design of passive compensators which can effectively reduce the unbalanced and reactive components of the source current under nonsinusoidal conditions.
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