The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Sensitivity Analysis of Wake Diffusion Patterns in Mountainous Wind Farms according to Wake Model Characteristics on Computational Fluid Dynamics

전산유체역학 후류모델 특성에 따른 산악지형 풍력발전단지 후류확산 형태 민감도 분석

  • 김성균 (국립목포대학교 대학원) ;
  • 류건화 ((사)에너지밸리산학융합원) ;
  • 김영곤 ((사)에너지밸리산학융합원) ;
  • 문채주 (국립목포대학교.(사)에너지밸리산학융합원)
  • Received : 2022.02.14
  • Accepted : 2022.04.17
  • Published : 2022.04.30
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Abstract

The global energy paradigm is rapidly changing by centering on carbon neutrality, and wind energy is positioning itself as a leader in renewable energy-based power sources. The success of onshore and offshore wind energy projects focuses on securing the economic feasibility of the project, which depends on securing high-quality wind resources and optimal arrangement of wind turbines. In the process of constructing the wind farm, the optimal arrangement method of wind turbines considering the main wind direction is important, and this is related to minimizing the wake effect caused by the fluid passing through the structure located on the windward side. The accuracy of the predictability of the wake effect is determined by the wake model and modeling technique that can properly simulate it. Therefore, in this paper, using WindSim, a commercial CFD model, the wake diffusion pattern is analyzed through the sensitivity study of each wake model of the proposed onshore wind farm located in the mountainous complex terrain in South Korea, and it is intended to be used as basic research data for wind energy projects in complex terrain in the future.

육·해상 풍력 프로젝트 성공여부는 사업의 경제성 확보에 중점을 두고 있으며, 이는 양질의 풍력자원 확보와 풍력단지 최적배치에 의해 좌우된다. 풍력단지를 배치하는 과정에서 주풍향을 고려한 풍력터빈들의 최적배치 방법이 중요하며, 이는 풍상측에 위치한 구조물을 통과하는 유체가 발생시키는 후류영향을 최소화시키는 것과 연관이 있다. 후류효과 예측성의 정확도는 이를 적절히 모의할 수 있는 후류모델과 모델링 기법에 의해 결정되어지며, 특히 산악 및 다도해지역과 같은 복잡지형에서는 고해상도 기반의 정확한 후류예측이 필수적으로 요구된다. 이에 본 논문에서는 상용 CFD 모델인 WindSim을 활용하여 국내 산악 복잡지형에 위치한 육상풍력단지 예정지의 후류모델별 민감도 분석을 통해 후류확산 형태를 분석하고 향후 복잡지형 풍력발전 프로젝트의 기초연구 자료로 활용하고자 한다.

Keywords

Acknowledgement

이 논문은 2020년 산업부 에너지기술개발사업 해상풍력 유지관리 및 물류관리 플랫폼 개발 연구과제 지원에 의한 논문임

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