전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제66권5호
  • /
  • Pages.750-756
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  • 2017
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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초퍼저항 및 de-loading 협조제어를 통한 해상풍력 연계용 HVDC시스템 DC전압 상승 억제 방안

DC Voltage Build-Up Suppression Scheme of HVDC System for Offshore Wind Farm Connection using Chopper Resistor and de-loading

  • 투고 : 2017.01.23
  • 심사 : 2017.04.14
  • 발행 : 2017.05.01
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초록

This paper presents a method for DC voltage control of HVDC system connection of offshore wind farms. In the event of fault in AC grid, HVDC system need to meet LVRT regulations. When HVDC system meet LVRT regulation, unbalance is caused between power input and power output for DC link. Therefore, LVRT regulation lead to DC voltage increase of HVDC system. To control the DC voltage increase, the chopper resistor can be suggested. In this paper, DC voltage suppression is proposed using chopper resistor and de-loading. The effectiveness of the chopper resistor was verified using PSCAD/EMTDC.

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참고문헌

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