Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Classification of hydropower dam in North-han River based on water storage characteristics

저류특성을 고려한 북한강수계 발전용댐의 유형 구분방안 제시

  • Choi, Jeongwook (Department of Civil Engineering, Kyung Hee University) ;
  • Jeong, Gimoon (Department of Civil Engineering, Kyung Hee University) ;
  • Kang, Doosun (Department of Civil Engineering, Kyung Hee University) ;
  • Ahn, Jeonghwan (Hangang Hydro Power Site, Korea Hydro & Nuclear Power Co.,LTD.) ;
  • Kim, Taesoon (Hangang Hydro Power Site, Korea Hydro & Nuclear Power Co.,LTD.)
  • 최정욱 (경희대학교 사회기반시스템공학과) ;
  • 정기문 (경희대학교 사회기반시스템공학과) ;
  • 강두선 (경희대학교 사회기반시스템공학과) ;
  • 안정환 (한국수력원자력(주) 한강수력본부 수력운영실 수자원관리부) ;
  • 김태순 (한국수력원자력(주) 한강수력본부 수력운영실 수자원관리부)
  • Received : 2021.05.18
  • Accepted : 2021.06.13
  • Published : 2021.08.31
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Abstract

Climate change threatens the security of domestic water resources in South Korea. To overcome the potential water shortage, various approaches are being studied by alterning the operation of dams or by integrated operation of multiple dams and reservoirs. However, most of the related researches were developed and applied for multi-purpose dams, and few studies were conducted for the hydropower dams. The main purpose of the hydropower dam is to generate electric energy; however, the potential water shortage due to prolonged droughts brings the idea to supply water from the hydropower dam in the basin. To that end, it is required to estimate the water supply ability of the hydropower dams. In this study, we proposed a methodology to classify the hydropower dam into a "storage-type" and "run-of-river type" dam. The proposed approach was demonstrated using the hydropower dams located in North-han River basin. The results of this study are expected to contribute for further analysis of the hydropower dams, such as evaluation of water supply capacity and drought mitigation purpose operation of the hydropower dams.

최근 국내에서는 기후변화로 인해 수자원의 안정적인 확보가 위협받고 있으며, 그 대안으로 기존 수공시설물을 활용한 추가 수자원 확보를 추진하고 있다. 그러나, 이를 위한 댐 시설물의 재평가 및 연계운영을 통한 용수공급능력 확보는 대부분 다목적댐 및 용수공급댐을 중심으로 검토되어 발전용댐을 대상으로 한 분석 연구는 상대적으로 미흡하다. 특히 발전용댐의 특성을 고려한 정확한 용수공급능력 산정 기법이 요구되고 있으나, 그에 앞서 수력발전에 목적을 둔 발전용댐의 저류특성을 먼저 파악할 필요가 있다. 본 연구에서는 발전용댐의 저류용량, 저류활동빈도, 용수공급기여도 등의 저류특성을 고려하여 발전용댐의 유형을 구분하는 방안과 판단 기준을 제안하고, 북한강수계 발전용댐을 대상으로 그 적용 결과를 도출하였다. 본 연구 결과는 발전용댐의 정확한 저류특성 파악과 함께, 향후 발전용댐 특성에 적합한 용수공급능력 평가 체계 및 운영방안 마련에 기여할 것으로 기대된다.

Keywords

Acknowledgement

본 연구는 환경부 「기후변화특성화대학원사업」의 지원과 한국수력원자력(주) 「 발전용댐 이·치수 능력검토 및 수문학적 안정성 평가 용역」의 지원으로 수행되었습니다. 이에 감사드립니다.

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