• Title/Summary/Keyword: 해상 풍력단지 설계

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CFD Study on Aerodynamic Power Output of 6 MW Offshore Wind Farm According to the Wind Turbine Separation Distance (CFD를 활용한 6 MW 해상풍력발전단지의 풍력터빈 이격거리에 따른 공기역학적 출력 변화연구)

  • Choi, Nak-Joon;Nam, Sang-Hyun;Jeong, Jong-Hyun;Kim, Kyung-Chun
    • Journal of Advanced Marine Engineering and Technology
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    • v.35 no.8
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    • pp.1063-1069
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    • 2011
  • This paper presents aerodynamic power outputs of wind turbine of 6 MW wind farm composed of 3 sets of 2 MW wind turbine according to the separation distance by using CFD. Layout design including offshore wind farm and onshore wind farm is key factor for the initial investment cost, annual energy production and maintenance cost. For each wind turbine rotor, not actuator disc model with momentum source but full 3-dimensional model is used for CFD and it has a great technical meaning. The results of this study can be applied to the offshore wind farm layout design effectively.

Design of SCADA System for a Large-Scale Offshore Wind Farm (대규모 해상풍력발전단지 운용을 위한 SCADA 시스템 설계)

  • Kim, Dong Wook;Song, Jae Ju;Jung, Nam Joon;Choi, Hyo Yul
    • KIPS Transactions on Computer and Communication Systems
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    • v.1 no.3
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    • pp.161-170
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    • 2012
  • In recent years, many researchers and developers have been interested in renewable energy all over the world. Particularly, the development of wind power is being processed actively due to its high economic efficiency. A few years ago, Korean government has started the research for building a large-scale offshore wind farm in domestic west-southern area. Current domestic SCADA technology level for operating wind farm is very low compared with foreign SCADA technology level. In this paper, we found IT issues and solutions for developing SCADA system. Based on these solutions, we designed SCADA system for a large-scale offshore wind farm.

Assessment for Development Capacity of Offshore Wind Power Around Korean Peninsula (국내 해역의 해상풍력 개발 가능량 평가)

  • Kim, Ji-Young;Kang, Keum-Seok;Oh, Ki-Yong;Lee, Jun-Shin;Jang, Moon-Seok
    • 한국신재생에너지학회:학술대회논문집
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    • 2009.06a
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    • pp.500-503
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    • 2009
  • 국내 해역의 해상풍력 개발 가능량을 평가하기 위하여 풍황, 수심 등을 고려하여 개발 가능량을 추정하였다. 풍력등급 3 이상, 수심 50 m 이내의 영역에 대하여 사회.환경적 영향을 고려하기 위한 제약조건을 반영하여 개발 가능량을 산출하였으며, 현재의 기술수준으로 개발 가능하다고 판단되는 수심 30 m 이내의 영역에 대한 개발 가능용량이 약 11 GW 정도로 추정됨에 따라 풍력발전 용량을 2030년까지 7.3 GW 이상 확보하고자 하는 국가 신재생에너지 보급목표의 달성 가능성이 기대된다. 본 연구결과는 해상풍력 개발단지 선정을 위한 기초 자료로 활용되며, 입지 선정 후 기상관측, 환경영향조사 등의 세분화된 단지조사를 통한 해상풍력 실증단지 설계 및 경제성 평가 등이 계속 진행될 예정이다.

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해상 풍력발전시스템을 위한 부유식 플랫폼 형식에 대한 기술보고

  • Jeong, Tae-Yeong;Mun, Seok-Jun;Im, Chae-Hwan
    • 기계와재료
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    • v.22 no.2
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    • pp.72-81
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    • 2010
  • 본고에서는 유럽, 미국, 일본에서 활발하게 수행되고 있는 해상 풍력발전시스템을 위한 부유식 플랫폼에 대한 연구활동 및 기술내용에 대해서 논하고자 한다. 아직까지 부유식 해상 풍력발전 시스템이 실증되지는 않았지만 현재 실증을 추진하고 있으며, 앞으로 늦어도 10년 내에 부유식 해상풍력 발전단지의 조성이 가시화 될 것으로 예상하고 있다. 본고를 통하여 지금까지 부유식 해상풍력 발전시스템으로 제안된 여러 가지 형태의 개념설계안을 검토하였다. 육지 면적이 좁고 인구밀도가 높은 반면에 삼면이 바다로 둘러싸여 있는 우리나라에서도 부유식 해상 풍력발전 시스템 기술개발이 필요할 것으로 판단된다. 이를 위하여 우선적으로 풍력발전 시스템 자체의 성능을 예측하고 해석할 수 있는 프로그램의 개발과 해상에서 이를 지지하는 플랫폼의 거동예측 프로그램을 결합한 시스템적인 설계해석 프로그램의 자체개발 및 보유가 필요하다. 이를 위해서는 풍력발전 분야의 전문가들뿐만 아니라 플랫폼을 설계할 수 있는 해양공학 분야의 전문가들과의 융합연구가 요망된다.

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Optimal Design and Economic Evaluation of Energy Supply System from On/Off Shore Wind Farms (육/해상 풍력기반 에너지생산 공정 최적 설계 및 경제성 평가)

  • Kim, Minsoo;Kim, Jiyong
    • Korean Chemical Engineering Research
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    • v.53 no.2
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    • pp.156-163
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    • 2015
  • This paper presents a new framework for design and economic evaluation of wind energy-based electricity supply system. We propose a network optimization (mixed-integer linear programming) model to design the underlying energy supply system. In this model we include practical constraints such as land limitations of onshore wind farms and different costs of offshore wind farms to minimize the total annual cost. Based upon the model, we also analyze the sensitivity of the total annual cost on the change of key parameters such as available land for offshore wind farms, required area of a wind turbine and the unit price of wind turbines. We illustrate the applicability of the suggested model by applying to the problem of design of a wind turbines-based electricity supply problem in Jeju. As a result of this study, we identified the major cost-drivers and the regional cost distribution of the proposed system. We also comparatively analyzed the economic performance of on/off shore wind farms in wind energy-based electricity supply system of Jeju.

The Energy Production of Offshore Wind Farm Using WindPRO (WindPRO를 이용한 해상풍력단지 발전량 예측)

  • Jeong, Moon-Seon;Moon, Chae-Joo;Kwak, Seung-Hun;Choi, Man-Su;Chang, Young-Hak
    • Proceedings of the KIPE Conference
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    • 2010.11a
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    • pp.267-268
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    • 2010
  • 본 논문에서는 풍력발전단지 설계를 목적으로 사용되고 있는 EMD사의 WindPRO2.6을 이용하여 서남해안에 설치된 50m 높이의 Met mast에서 1년 동안 관측된 풍황자원을 분석하고, 특정 풍력발전기를 적용하여 40MW급 해상풍력발전단지를 설계했을 경우 연간 생산되는 발전량을 예측하였다.

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Optimal Layout Design of Offshore Wind Turbines by Response Surface Analysis (반응표면분석법에 의한 해상풍력터빈 최적배치 설계)

  • Kim, Ji-Young;Kim, Kyoung-Yul;Lee, Jun-Shin
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.23 no.2
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    • pp.163-170
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    • 2011
  • An optimal layout condition of the offshore wind turbines is studied by using the response surface analysis which is a kind of the design of experiments. Based on the assumption that total 36 turbines would be installed in the offshore wind farm, the number and distance of the rows and columns are used as the design variables and the efficiency decrease of power generation due to the wake decay by the interactions of turbines and the installation cost of the internal electric grid are considered as the objective functions of the response surface analysis for the layout design of turbines. Useful design information can be derived by analyzing the relationship between the design variables and target functions. It is found that the row number and the distance between rows should be minimized, and the optimal distance between columns should be estimated and adopted to the layout design within the specified design range in order to ensure the economics for the offshore wind farm.

Partial Safety Factor of Offshore Wind Turbine Pile Foundation in West-South Mainland Sea (서남해안 해상풍력단지 말뚝기초의 부분안전계수)

  • Yoon, Gil Lim;Kim, Sun Bin;Kwon, O Soon;Yoo, Moo Sung
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.34 no.5
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    • pp.1489-1504
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    • 2014
  • This paper is aimed to suggest a site specific partial safety factor of offshore wind turbine (OWT) pile foundation design for the offshore wind turbine complex at a West-South mainland sea in Korea. International offshore wind design standards such as IEC, GL, DNV, API, ISO and EUROCODE were compared with each partial safety factor and resistance factor. Soil uncertainty analysis using a large number of soil data sampled was carried out, and their results were adapted to estimate partial safety factor of OWT pile foundation through reliability analyses. The representative partial safety factor has been estimated as 1.3. When a proposed partial factor is willing to use to other sites, it is recommended that further studies on code calibration are required to validate their accuracy using more site characterization data.

Selecting the Geographical Optimal Safety Site for Offshore Wind Farms to Reduce the Risk of Coastal Disasters in the Southwest Coast of South Korea (국내 서남해권 연안재해 리스크 저감을 위한 지리적 해상풍력단지 최적 입지 안전구역 선정 연구)

  • Kim, Jun-Gho;Ryu, Geon-Hwa;Kim, Young-Gon;Kim, Sang-Man;Moon, Chae-Joo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.17 no.5
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    • pp.1003-1012
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    • 2022
  • The horizontal force transfer to the turbine and substructure of a wind power generation system is a very important factor in maintaining the safety of the system, but it is inevitably vulnerable to large-scale coastal disasters such as earthquakes and typhoons. Wind power generation systems built on the coast or far offshore are very disadvantageous in terms of economic feasibility due to an increase in initial investment cost because a more robust design is required when installed in areas vulnerable to coastal disasters. In this study, the GIS method was used to select the optimal site for a wind farm from the viewpoint of reducing the risk of coastal disasters. The current status of earthquakes in the West and South Seas of Korea, and the path and intensity of typhoons affecting or passing through the West and South Seas were also analyzed. Accordingly, the optimal offshore wind farm site with the lowest risk of coastal disasters has been selected and will be used as basic research data for offshore wind power projects in the region in the future.

Analysis of Wave Characteristics near Wangdeungdo through Southwest Sea Wave Hindcasting (서남해 파랑 후측모의 실험을 통한 왕등도 인근 파랑 특성 분석)

  • Young Ju Noh;Min Young Sun
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.36 no.2
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    • pp.61-69
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    • 2024
  • Wave conditions are crucial for offshore wind farm design, particularly in determining structural loads and layout. However, there is limited wave hindcasting research for the Wangdeungdo Island area, a potential offshore wind site. This study used the MIKE21 model for a year-long wave hindcast around Wangdeungdo in 2021. Validation showed high reproducibility for significant wave heights with RMSE values of 0.177 and 0.225 and Pearson correlations of 0.971 and 0.970 at Sangwangdeungdo and Buan buoys. Subsequent analysis of the wave characteristics near Wangdeungdo indicated significant seasonal variations and differences in maximum significant wave heights across locations, which are expected to significantly impact the design loads for offshore wind structures.