DocumentCode
783316
Title
Calculation of harmonic currents in a three-phase convertor with unbalanced power supply conditions
Author
Sakui, M. ; Fujita, H.
Author_Institution
Fac. of Eng., Toyama Univ., Japan
Volume
139
Issue
5
fYear
1992
fDate
9/1/1992 12:00:00 AM
Firstpage
478
Lastpage
484
Abstract
The authors propose a practical new method for calculating the harmonic currents of a three-phase bridge controlled rectifier under unbalanced supply conditions. Analytical equations for the harmonic currents are derived, taking into account the effects of DC current ripple and overlap angle. The proposed method is based on the frequency domain method and the rectifier switching functions. All the calculations are conducted only by algebraic calculations, and the accuracy is within 1.1% and 2.6% for the DC and AC side harmonics, respectively. The validity of the proposed method is demonstrated by comparison with the results of digital simulation
Keywords
bridge circuits; frequency-domain analysis; harmonics; power convertors; power supplies to apparatus; rectifying circuits; AC side harmonics; DC current ripple; DC side harmonics; algebraic calculations; bridge controlled rectifier; digital simulation; frequency domain method; harmonic currents; overlap angle; rectifier switching functions; three-phase convertor; unbalanced power supply conditions;
fLanguage
English
Journal_Title
Electric Power Applications, IEE Proceedings B
Publisher
iet
ISSN
0143-7038
Type
jour
Filename
156778
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