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A Single Phase Inverter - Zigzag Transformer Hybrid Filter to Suppress Neutral Harmonic Currents in Three-Phase Four-Wire Systems
작성자 관리자 작성일 2008-12-12
논문집명 IEEE Power Electronics Specialist Conference 발행년도 2004. 06
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A Single Phase Inverter - Zigzag Transformer Hybrid Filter to Suppress Neutral Harmonic.pdf

Sewan Choi, Minsoo Jang, “A Single Phase Inverter - Zigzag Transformer Hybrid Filter to Suppress Neutral Harmonic Currents in Three-Phase Four-Wire Systems”

Abstract : This paper proposes a new hybrid filter to suppress neutral harmonic currents in three-phase four-wire systems. The compensation characteristics illustrate that the proposed scheme works well not only with harmonic voltage-source loads but also with harmonic current-source loads. Under unbalanced loading, the proposed filter eliminates only harmonics in the neutral current while it does not affect the fundamental. The VA rating of the inverter is significantly reduced compared to the conventional one. The experimental results on a prototype validate the proposed control approach.