Optimal Operation of Pumping System Connected with Reservoir Systems

저수지 시스템과 연계된 펌핑 시스템의 최적 운영

  • 이광만 (한국수자원공사 조사계획처) ;
  • 이우석 (한국수자원공사 조사계획처, 한국수자원공사 조사계획처) ;
  • 유양수
  • Published : 1997.04.01

Abstract

The Upper Fenhe Reservoir System studied by KOWACO to supply water to Taiyuan City, capital of Shanxi Province in China, is a very complicated one. Many reservoirs will be connected serially and it will be operated as a multi-purpose and multi-criteria system because several objectives and appraisal functions are taken into account regarding system operation. For reservoirs in the system, the critical system operation objectives are to minimize water shortage and reservoir sediment. Furthermore the reservoir system will be jointed with a large-scale pumping system, namely Yellow River Diversion Project. The water development cost in the Yellow River Diversion Project is much higher than that of reservoir system, and around the year 2020 the diversion volume will be twice of the surface water available in the Upper Fenhe Basin. In this study, an optimization technique for connecting the system of reservoirs and pumping station was developed to solve a conjunctive low River Diversion Project. The developed scheme includes a suggestion on the combining methodology of real reservoir system and pumping system using imaginary reservoir concept for the Yellow River Diversion Project, and practical examples to the minimization problem of the Yellow River diversion satisfying other reservoir operation objectives.

한국수자원공사가 수행한 중국 산서성 태원시 용수공급원인 분하강 상류 저수지 시스템은 매우 복잡하다. 이곳 저수지 시스템은 여러개의 저수지가 직렬로 연결될 계획이며, 운영에서도 여러 가지 목적이나 평가항목을 고려하는 다목적, 다기준 시스템이 될 것이다. 이 시스템에서 주요 저수지 운영목적은 용수부족과 저수지 퇴사량 최소화이나 황하도수사업이라는 대규모 펌핑 시스템과 연계 운영이 필요하다. 황하도수계획에서의 용수개발비는 저수지를 통한 개발비 보다 비싼 편이며, 2020년경의 필요 도수량은 자체 유역으로부터 지표수 공급량의 두배에 이를 것으로 전망된다. 본 연구에서는 분하 상류 저수지 시스템과 황하도수 시스템의 연계 운영문제를 해결하기 위하여 펌핑-저수지 시스템 최적화 모형을 개발하였다. 연구내용은 황하도수계획과 저수지 시스템의 연계 가능성을 입증하고 황하도수계획을 하나의 저수지화하여 실제 저수지 시스템과 연계하는 방법을 제시하고 있다. 또한 개발된 모형을 이용하여 여러 가지 기존의 저수지 운영목적을 만족시키면서 황하도수량 최소화에 대한 실제 적용 예를 제시하고 있다.

Keywords

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