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A New Three-Phase Harmonic-Free Rectification Scheme Based on Zero-Sequence Current Injection
작성자 관리자 작성일 2008-12-12
논문집명 IEEE Applied Power Electronics Conference 발행년도 2003. 02
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A New Three-Phase Harmonic-Free Rectification Scheme Based on Zero-Sequence Current Injection.pdf

Se-Wan Choi, Chung-Yeun Won, Gyu-Sik Kim, “A New Three-Phase Harmonic-Free Rectification Scheme Based on Zero-Sequence Current Injection”

Abstract : This paper proposes a new three-phase harmonic-free rectification scheme based on a zero-sequence injection technique. The proposed scheme incorporates two half-bridge inverters and two single-phase transformers to actively and individually shape the positive and negative dc rail currents of the rectifier. The shaped zero-sequence harmonic currents are then circulated through the ac side of the rectifier via a zigzag transformer, resulting in pure sinusoidal input currents in the three-phase diode rectifier. A design example along with component ratings calculation is detailed. Experimental results on a 1.5kVA prototype are provided to validate the proposed technique.

Keywords : zero-sequence; current injection; harmonic reduction; three-phase diode rectifier