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슬라이닥을 이용하는 전압 제어 방식의 역률보상시스템 개발

Development of Voltage Controlled Power Factor Compensation System using Slidac

  • 정상현 (경북대학교 의료로봇연구소) ;
  • 이현우 (경북대학교 의료로봇연구소) ;
  • 박영균 (경북대학교 의료로봇연구소) ;
  • 박철우 (경북대학교 의료로봇연구소)
  • Joung, Sanghyun (Kyungpook National University Medical Device and Robot Institute of Park) ;
  • Lee, Hyun-woo (Kyungpook National University Medical Device and Robot Institute of Park) ;
  • Park, Young-kyun (Kyungpook National University Medical Device and Robot Institute of Park) ;
  • Park, Chul-woo (Kyungpook National University Medical Device and Robot Institute of Park)
  • 투고 : 2017.03.23
  • 심사 : 2017.07.24
  • 발행 : 2017.08.25

초록

본 논문에서는 슬라이닥을 이용하는 새로운 역률보상시스템을 제안한다. 제안하는 역률보상시스템은 슬라이닥의 출력전압을 커패시터에 인가하여 역률을 보상하는 구조이다. 기존의 커패시터 뱅크 방법을 이용하는 역률보상시스템은 선택 가능한 커패시터 용량이 한정되어 있어 부하 상황에 따라 역률 보상 오차가 발생하지만, 제안 시스템은 커패시터 인가 전압을 슬라이닥을 이용하여 세밀하게 변화시킬 수 있어 변화하는 부하를 추종하여 오차 없이 역률을 100%까지 보상할 수 있다. 기존 시스템과 제안 시스템을 비교하여 제시하고, 제안 시스템의 역률 보상 성능이 우수함을 모의실험과 실험을 통해 확인한다. 제안 시스템을 수용가에 설치할 경우 역률 개선을 통한 전기료 감소, 선로손실 감소, 부하 용량 증대 효과가 기대된다. 특히 발전 사업가측에서는 역률 보상 성능의 향상으로 송전 여유 용량 확보와 발전량 절감이 가능하다.

In this paper, we propose a novel power factor compensation system using slidac. The proposed power factor compensation system compensates the power factor by adjusting the output voltage of the slidac. In the conventional power factor compensation system using capacitor bank method, the power factor compensation error occurs depending on the load condition due to the limitation of the compensation capacitor capacity. However, the proposed system can finely change slidac output voltage applied to the capacitor, therefore power factor can be compensated up to 100% without error. We compare the proposed system with the conventional system, and confirm that the proposed system has excellent power factor compensation performance through simulations and experiments. If the proposed power factor compensation system is applied to an industrial field, a power factor compensation performance can be maximized. As a result, it is possible to reduce of electricity prices, reduce of line loss, increase of load capacity, ensure the transmission margin capacity, and reduce the amount of power generation.

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참고문헌

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