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Harmonic Reduction of Diode Rectifiers by a New Zero-Sequence Current Injection Method  

김현정 (서울산업대 대학원 제어계측공학과)
장민수 (서울산업대 대학원 제어계측공학과)
최세완 (서울산업대 대학원 제어계측공학과)
원충연 (성균관대 전기전자 및 컴퓨터공학부)
김규식 (서울시립대 전기전자컴퓨터공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.7, no.6, 2002 , pp. 596-603 More about this Journal
Abstract
In this paper a new harmonic reduction method of three-phase diode rectifiers is proposed to improve input current performance using the zero-sequence harmonics injection technique. The proposed mothed, based on the third-harmonic injection, employs two half-bridge inverters and two single-phase transformers to independently shape the positive and negative dc rail currents of the diode rectifier. The actively shaped zero-sequence harmonic currents are t]ten circulated through the ac side of the rectifier using a zigzag transformer This results in pure sinusoidal input currents in the three-phase diode rectifier. Experimental results on a 1.5kVA prototype are provided to validate the proposed technique.
Keywords
current injection; harmonic reduction; three-phase diode rectifiers;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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