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The Parallel Operation of Each other three phase AC/DC Converter using DC Current Droop Control for Multi-parallel DC Distribution System

다병렬 직류배전 시스템의 DC전류 드룹 제어를 이용한 서로 다른 3상 AC/DC컨버터의 병렬운전기법

Lee, Hee-Jun;Hong, Jin-Seok;Hyun, Seung-Wook;Kang, Jin-Wook;Kim, Han-Soo;Won, Chung-Yuen
이희준;홍석진;현승욱;강진욱;김한수;원충연

  • Received : 2015.01.22
  • Accepted : 2015.05.11
  • Published : 2015.06.30

Abstract

DC distribution system is difficult to compose the single-system because of the capacity restriction of power semiconductors. Therefore, DC Distribution system needs parallel operation of AC/DC converters for increase to system capacity. However, this system generates the circulating current. This paper is reducing the circulating current and safely sharing the load using the proposed DC current droop control method when each other 3-phase AC/DC converter connected. This system confirms through the simulation and experiment. Also, when each other converter of parallel operate. it is compared the response characteristics

Keywords

Converter Parallel Operation;Current Sharing;Dc Distribution;3-Phase AC/DC Converter

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Acknowledgement

Supported by : 한국연구재단