• 제목/요약/키워드: Korea wind resource map

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풍력자원 평가 및 육상바람지도 작성을 위한 고해상도 대기유동장 수치모의 (Atmospheric Numerical Simulation for an Assessment of Wind Resource and an Establishment of Wind Map on Land)

  • 정우식;이화운;김현구;최현정;이순환;김동혁;김민정
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2009년도 춘계학술대회 논문집
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    • pp.529-531
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    • 2009
  • To construct the wind map for mainland Korea, the well designed atmospheric numerical modeling system was used. Three nest domains were construced with spatial resolutions between $10{\times}10km$ up to the hightest resolution of $1{\times}1km$. Parameterization schemes like MRF(PBL), RRTM(radiation), Grell(cumulus) were chosen since wind data simulated is in better agreement with the observed wind data. High-resolution atmospheric numerical model was applied to simulate the motion of the atmosphere and to produce the wind map around the South Korea. The results of several simulations were improved compare to the past system, because of using the fine geographical data, such as terrain height and land-use data, and the meteorological data assimilation.

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한반도 바람지도 구축에 관한 연구 (I. 원격탐사자료에 의한 종관 바람지도 구축) (Study on Establishment of a Wind Map of the Korean Peninsula (I. Establishment of a Synoptic Wind Map Using Remote-Sensing Data))

  • 김현구;최재우;이화운;정우식
    • 신재생에너지
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    • 제1권1호
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    • pp.44-53
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    • 2005
  • To understand general status of the national wind environment and to distinguish potential areas to be developed as a largescale wind farm, a synoptic wind map of the Korean Peninsula is established by processing remote sensing data of the satellite, NASA QuikSCAT which Is deployed for the SeaWinds Project since 1999. According to the validation results obtained by comparing with the measurement data of marine buoys of KMA(Korea Meteorological Administration), the cross-correlation factor Is greatly Improved up to 0.87 by blending the sea-surface dat3 of QuikSCAT with NCEP/NCAR CDAS data. It is found from the established synoptic wind map that the wind speed in winter is prominent temporally and the South Sea shows high energy density up to the wind class 6 spatially. The reason is deduced that the northwest winds through the yellow Sea and the northeast winds through the East Sea derived by the low-pressure developed in Japan are accelerated passing through the Korea Channel and formed high wind energy region in the South Sea; the same trends are confirmed by the statistical analysis of meteorological observation data of KMA.

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한반도 바람지도 구축에 관한 연구 I. 원격탐사자료를 이용한 해상풍력자원 평가 (Establishment of a Wind Map of the Korean Peninsula I. Evaluation of Offshore Wind Resources Using Remote-Sensing Data)

  • 김현구;이화운;정우식
    • 한국대기환경학회지
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    • 제21권1호
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    • pp.63-72
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    • 2005
  • In order to understand regional wind characteristics and to estimate offshore wind resources, a wind map of the Korean Peninsula was established using remote-sensing data from the satellite, U.S. NASA Quik SCAT which has been deployed for the Sea Winds Project since 1999. According to the linear regression result between the wind map data and in-situ marine-buoy data, the correlation factor was greatly improved up to 0.87 by blending the remote-sensing data of Quik SCAT with U.S. NCEP/NCAR CDAS reanalysis data to eliminate precipitation interference and to increase temporal resolution. It is found from the established wind map that the wind speed in winter is prominent temporally and the South Sea shows spatially high energy density over the wind class 6. The reason is deduced that the north-west winds through the Yellow Sea and the north-east winds through the East Sea derived by the low pressure developed in Japan are accelerated passing through the Korea Channel and formed high wind energy region in the South Sea; the same trends are confirmed from the statistical analysis of the meteorological observation data of KMA.

수치바람모의에 의한 한반도 바람지도 구축 (Establishment of Korean Wind Map by Numerical Wind Simulation)

  • 김현구;장문석;이화운;최현정
    • 유체기계공업학회:학술대회논문집
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    • 유체기계공업학회 2006년 제4회 한국유체공학학술대회 논문집
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    • pp.265-268
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    • 2006
  • In this paper, the research background and objectives of the wind mapping project of the Korean Peninsula, which has been carrying out as a part of "Investigation of new-renewable energy resources and establishment of comprehensive management system" funded by Korea Ministry of Commerce, Industry and Energy, are introduced together with the intermediate result of the project so far. The Korean wind map is to be established by numerical wind simulation based on terrain model ME-DEM and land-use model ME-LUM with the spatial resolution of 10km.

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녹색섬 풍력자원평가 - 독도 (Wind Resource Assessment for Green Island - Dokdo)

  • 김현구;김건훈;강용혁
    • 한국태양에너지학회 논문집
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    • 제32권5호
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    • pp.94-101
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    • 2012
  • A Dokdo wind resource map has been drawn up for the Green Island Energy Master Plan according to Korea's national vision for 'Low Carbon Green Growth'. The micro-siting software WindSim v5.1,which is based on Computational Flow Analysis, is used with MERRA reanalysis data as synoptic climatology input data, and sensitivity analysis on turbulence model is accompanied. A wind resource assessment has been conducted for the Dokdo wind power dissemination plan, which consists of two 10kW wind turbines to be installed at the Dongdo dock and Dokdo guard building. It is evaluated that the capacity factors at Dongdo dock and Dokdo guard building are about 20% and 30% respectively, and annual and hourly variations of wind power generation have been analyzed, but summertime energy production is predicted to be only 40% of wintertime energy production.

지형형태 분류에 의한 산악지형 내 풍력단지 입지평가 (Wind Farm Siting in Mountainous Terrain By Geomorphometric Characterization)

  • 김현구;황효정;강용혁;윤창열;정보린;송규봉
    • 대한공간정보학회지
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    • 제22권4호
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    • pp.13-19
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    • 2014
  • 한반도와 같은 산악지형에서 풍력단지를 조성할 경우, 인근 지형에 의한 차폐영향이 없기 때문에 상대적으로 풍력자원이 우수한 능선을 따라서 풍력터빈을 설치하는 것이 유리하다. 본 연구에서는 산악지형에서의 풍력단지 입지평가를 위하여 SRTM v4.1 3 arc-second 해상도의 수치고도 데이터베이스와 지형형태 분류 프로그램인 LandSerf v2.3을 이용하여 풍력터빈 설치 가능한 능선을 추출하였으며, 강원도에 건설된 강원풍력단지, 태기산풍력단지 및 매봉산풍력단지의 사례분석을 통하여 대부분의 풍력터빈이 상대적으로 풍력자원이 우수한 능선을 따라 배치되었음을 확인함으로써 이 방법의 유효성을 검증하였다.

신재생에너지 자원지도의 비즈니스 모델 개발 (Business Model of Renewable Energy Resource Map)

  • 박년배;박상용;최동구;김현구;강용혁
    • 한국태양에너지학회 논문집
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    • 제36권1호
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    • pp.39-47
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    • 2016
  • Geographic information system (GIS) based renewable energy resource map including potential analysis can play a crucial role not only to develop the national plan for renewable energy deployment but also to make strategic investment decision in the private sector. Korea Institute of Energy Research (KIER) has been developing domestic maps about several resources such as solar, wind, hydro, biomass, and geothermal, as well as conducting research on methodologies for potential analysis. Furthermore, the institute is trying to transfer related technologies and know-how to foreign countries, recently. In this context, the main purpose of this study is to introduce the business model of renewable energy resource map. From the value chain analysis, we focus on the government-side market in foreign countries, such as the development of the national level renewable energy resource map and the support of the national renewable energy plan. For about 180 countries, we segment the customers according to the consideration of economic capacity, renewable energy resource capacity, existence of renewable resource map, current portion of renewable energy facility capacity, and renewable energy policies, and we conclude that the target customers are non-Organization for Economic Co-operation and Development (non-OECD) countries or some OECD countries, their per capita GDP are under the average among OECD countries, that do not have renewable resource map yet. We segment the target customers into four groups, and suggest different strategies for market positioning and financing strategy based on Strengths, Weaknesses, Opportunities, Threats (SWOT) analysis. This study can help to develop the business strategy about the development of renewable energy resource map in foreign countries.

잠재디리클레할당을 이용한 한국학술지인용색인의 풍력에너지 문헌검토 (Review of Wind Energy Publications in Korea Citation Index using Latent Dirichlet Allocation)

  • 김현구;이제현;오명찬
    • 신재생에너지
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    • 제16권4호
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    • pp.33-40
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    • 2020
  • The research topics of more than 1,900 wind energy papers registered in the Korean Journal Citation Index (KCI) were modeled into 25 topics using latent directory allocation (LDA), and their consistency was cross-validated through principal component analysis (PCA) of the document word matrix. Key research topics in the wind energy field were identified as "offshore, wind farm," "blade, design," "generator, voltage, control," 'dynamic, load, noise," and "performance test." As a new method to determine the similarity between research topics in journals, a systematic evaluation method was proposed to analyze the correlation between topics by constructing a journal-topic matrix (JTM) and clustering them based on topic similarity between journals. By evaluating 24 journals that published more than 20 wind energy papers, it was confirmed that they were classified into meaningful clusters of mechanical engineering, electrical engineering, marine engineering, and renewable energy. It is expected that the proposed systematic method can be applied to the evaluation of the specificity of subsequent journals.

태양에너지학회 논문집의 풍력에너지 연구동향 분석 (Review of Trends in Wind Energy Research Publications in Journal of the Korean Solar Energy Society)

  • 김현구
    • 한국태양에너지학회 논문집
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    • 제40권4호
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    • pp.1-11
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    • 2020
  • The Journal of the Korean Solar Energy Society is the first journal in South Korea that adopts wind energy as one of its subjects. Since 2000, more than 140 papers on wind energy have been published in the journal, which accounts for 8.5% of the total publication. However, in recent years, the number of published papers on wind energy has been decreasing steadily, and a reason for this decline is the significant dependence on a few specific institutions and authors. In this study, wind energy subjects were classified using the frequency analysis of the subject words extracted from the title, keywords, and abstract of wind energy papers using the text mining technique. In addition, the Korea Citation Index was used to perform quantitative level evaluation by subject and institution and to analyze the trends and characteristics of the wind energy field. Therefore, it was identified that in terms of the number of publications and citations, the main subject areas were resource/micrositing and policy/potential.

남한지역 풍력자원 평가 및 바람지도 구축을 위한 바람권역 분류 (Classification of Wind Sector for Assessment of Wind Resource and Establishment of a Wind Map in South Korea)

  • 정우식;이화운;박종길;김현구;김은별;최현정;김동혁;김민정
    • 한국환경과학회지
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    • 제18권8호
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    • pp.899-910
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    • 2009
  • We classified wind sectors according to the wind features in South Korea. In order to get the information of wind speed and wind direction, we used and improved on the atmospheric numerical model. We made use of detailed topographical data such as terrain height data of an interval of 3 seconds and landuse data produced at ministry of environment, Republic of Korea. The result of simulated wind field was improved. We carried out the cluster analysis to classify the wind sectors using the K-means clustering. South Korea was classified as 8 wind sectors to the annual wind field.