전력전자학회논문지 (The Transactions of the Korean Institute of Power Electronics)

  • 제18권3호
  • /
  • Pages.270-278
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  • 2013
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  • 1229-2214(pISSN)
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  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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불평형 전압 조건에서 스위칭 소자의 전류 용량과 순환전류를 고려한 HVDC-MMC 제어기법

Control of HVDC-MMC Considering the Switching Device's Current Capacity and Circulating Current under Unbalanced Voltage Conditions

  • Moon, Ji-Woo (Power Conversion & Control Research Center, Korea Electrotechnology Research institute) ;
  • Pae, Deuk-Woo (Department of Electrical Engineering, Pusan National University) ;
  • Park, Jung-Woo (Power Conversion & Control Research Center, Korea Electrotechnology Research Institute) ;
  • Kang, Dea-Wook (Power Conversion & Control Research Center, Korea Electrotechnology Research institute) ;
  • Yoo, Dong-Wook (Power Conversion & Control Research Center, Korea Electrotechnology Research Institute) ;
  • Kim, Jang-Mok (Department of Electrical Engineering, Pusan National University)
  • 투고 : 2013.02.25
  • 심사 : 2013.03.25
  • 발행 : 2013.06.20
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초록

This paper proposes a control method for high voltage direct current(HVDC) with modular multilevel converter (MMC) under unbalanced voltage conditions considering the submodule(SM)'s current capacity and circulating current. It is aimed to propose a control method in which the current peak value does not exceed the maximum value of HVDC-MMC by considering the current capacity of the SM under unbalance voltage conditions. And it analyzes the effect of the unbalanced voltage on circulating currents in MMC and then proposes a control method considering each component of circulating currents under unbalanced voltages. The effectiveness of the proposed controlling method is verified through simulation results using PSCAD/EMTDC.

키워드

참고문헌

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피인용 문헌

  1. Control Scheme Using Active Power Regulation for DC Voltage of VSC HVDC Under Unbalanced Voltage vol.64, pp.2, 2015, https://doi.org/10.5370/KIEE.2015.64.2.232