• Title/Summary/Keyword: 태양 일사

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Insolation Modeling using Climate and Geo-Spatial Elements (기후요소와 지형 공간요소를 이용한 일사량 모델링)

  • Kim, Byung-Woo;Kang, In-Joon;Han, Ki-Bong
    • Journal of Korean Society for Geospatial Information Science
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    • v.18 no.4
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    • pp.79-86
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    • 2010
  • This research is a thing about reverse operation about the solar power for location decision and increasing efficiency of the solar power generation equipments. The purpose of this research is reverse operation about the amount of sunshine using the climate and spatial elements. Following the result of correlation analysis, the wind-speed and cloud-amount factor are excluded, because the correlation and significance coefficients are out of value. Each outcome of regression analysis using the other four climate elements, and regression analysis using spatial elements is what the amount of sunshine and the solar altitude are the most influence to the insolation-modeling. Doing the regression analysis based on the precedent result make the result that climate elements have bigger coefficient of regression than spatial elements. This outcome means the climate elements are more influence than spatial elements.

국내 일사데이터의 특성과 표준화

  • 조덕기
    • The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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    • v.32 no.8
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    • pp.34-40
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    • 2003
  • 태양에너지 기술이 국내에서도 하루 빨리 정착, 실용화 할 수 있도록 국내 태양에너지 자원을 보다 과학적인 방법으로 정확하게 정착. 평가하는데 그 목표를 두었다.

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태양광발전기술 현황 및 향후 방향성

  • Yu, Gwon-Jong
    • ICROS
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    • v.15 no.4
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    • pp.19-27
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    • 2009
  • 최근에는 여름철 냉방부하가 현격하게 증가하고 있는 상황에서, 일사량 특성공선과 부하특성곡선의 유사성을 이용하여 여름철에 상호보완효과를 얻을 수 있는 태양광발전방식의 보급 활성화는 에너지 소비 측면에서도 매우 바람직하다 할 수 있다.

Comparative Analysis of Measurements and Total Solar Irradiance Models on Inclined Surface for Building Solar Energy Prediction (건물의 일사에너지 예측을 위한 경사면 일사량 측정과 예측모델과의 비교분석 연구)

  • Yoon, Kap-chun;Jeon, Jong-Ug;Kim, Kang-Soo
    • Journal of the Korean Solar Energy Society
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    • v.32 no.6
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    • pp.44-52
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    • 2012
  • In all building's energy simulation applications, solar radiation must be calculated on inclined surfaces. Various solar radiation models based on measured data of specific region were used in building simulation programs. Therefore, we should choose the appropriate solar radiation model for Seoul. The purpose of this study is to compare four solar radiation models on inclined surfaces that are widely used in building energy simulations. In this case, it can be said the appropriate model in Seoul is the Isotropic model.

A study on solar irradiance forecasting with weather variables (기상변수를 활용한 일사량 예측 연구)

  • Kim, Sahm
    • The Korean Journal of Applied Statistics
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    • v.30 no.6
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    • pp.1005-1013
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    • 2017
  • In this paper, we investigate the performances of time series models to forecast irradiance that consider weather variables such as temperature, humidity, cloud cover and Global Horizontal Irradiance. We first introduce the time series models and show that regression ARIMAX has the best performance with other models such as ARIMA and multiple regression models.

Utilizing Reactive Power Compensation for Three-phase Grid-connected PV Inverter (태양광 인버터의 무효 전력 보상 활용에 관한 연구)

  • Choi, Jae-Yeon;Vu, Trung-Kien;Kang, San;Kim, Kwang-Seob
    • Proceedings of the KIPE Conference
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    • 2016.07a
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    • pp.473-474
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    • 2016
  • 최근 신재생에너지의 보급 정책으로 인해 태양광 또는 풍력과 같은 신재생에너지가 전체 전력 계통에서 차지하는 비율이 증가되고 있는 실정이다. 그러나 신재생에너지는 변동 적이기 때문에 계통의 안정성을 저해하는 원인이 될 수 있다. 이에 따라 각 나라에서는 계통 안정성을 위한 기능들을 요구하고 있으며, 그 요구는 점차 강화되고 있다. 이와 같이 신재생에너지 비율의 증가로 인해 계통 안정성에 대한 문제가 강조되고 있지만, 태양광 분산 발전 시스템의 경우에는 일사량에 의존하여 운전하기 때문에 일사량이 낮거나 야간에는 계통 안정성을 위한 기능을 수행하지 못하는 단점이 있다. 본 논문에서는 일사량이 낮거나 야간에도 계통 안정화를 위해 무효전력 지원이 가능한 확장된 무효전력 운전(EF-RPO: Extended feed-in Reactive Power Operation)방법의 제어 전략을 제안하며, 제안한 방식은 1MVA 계통 연계형 인버터의 제작과 실험을 통해 검증하였다.

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A Study on the Optimal Installation of Solar Photovoltaic System in Korea (국내 태양광발전시스템의 최적 설치에 관한 연구)

  • Jo, Dok-Ki;Kang, Yong-Heack;Lee, Euy-Joon;Auh, Chung-Moo
    • Journal of the Korean Solar Energy Society
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    • v.24 no.3
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    • pp.19-25
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    • 2004
  • The measured solar radiation incident on tilted surfaces by all directions has been widely used as important solar radiation data in installing photovoltaic modules. To maximize the incident beam radiation, the slope, which is the angle between the plane of the surface in question and the horizontal, an4 the solar azimuth angles are needed for these solar photovoltaic systems. This is because the performance of the solar photovoltaic systems is much affected by angle and direction of incident rays. Recognizing those factors mentioned above are of importance, actual experiment has been performed in this research to obtain the an91e of inclination with which the maximum incident rays can be absorbed. The results obtained in this research could be used in installing optimal photovoltaic modules.

Distribution of Surface Solar Radiation by Radiative Model in South Korea (복사 모델에 의한 남한의 지표면 태양광 분포)

  • Zo, Il-Sung;Jee, Joon-Bum;Lee, Won-Hak;Lee, Kyu-Tae;Choi, Young-Jean
    • Journal of Climate Change Research
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    • v.1 no.2
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    • pp.147-161
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    • 2010
  • The temporal and spatial distributions of surface solar radiation were calculated by the one layer solar radiative transfer model(GWNU) which was corrected by multi layer Line-by-Line(LBL) model during 2009 in South Korea. The aerosol optical thickness, ozone amount, cloud fraction and total precipitable water were used as the input data for GWNU model run and they were retrieved from Moderate Resolution Imaging Spectrometer(MODIS), Ozone Monitoring Instrument(OMI), MTSAT-1R satellite data and the Regional Data Assimilation Prediction System(RDAPS) model result, respectively. The surface solar radiation was calculated with 4 km spatial resolution in South Korea region using the GWNU model and the results were compared with surface measurement(by pyranometer) data of 22 KMA solar sites. The maximum values(more than $5,400MJ/m^2$) of model calculated annual solar radiation were found in Andong, Daegu and Jinju regions and these results were corresponded with the MTSAT-1R cloud amount data. However, the spatial distribution of surface measurement data was comparatively different from the model calculation because of the insufficient correction and management problems for the sites instruments(pyranometer).

A Study on the Power Generation Characteristics of Photovoltaic Panel for Vehicle Application (차량 적용을 위한 태양광 발전소자의 발전특성에 대한 연구)

  • Jeon, Seonwoo;Bae, Sungwoo
    • Proceedings of the KIPE Conference
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    • 2019.07a
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    • pp.461-462
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    • 2019
  • 본 논문은 실제 차량 운행 조건에서 차량에 적용한 태양광 발전모듈의 발전특성을 분석하였다. 태양광 발전모듈 적용차량의 발전특성 분석을 위해 조도계 및 온도계를 이용한 실제 데이터를 활용하였으며, 차량 조건 및 온도 조건에 따라 발전 가능한 최대전력량을 도출하였다. 태양광 발전모듈에 대한 특성 데이터 및 태양광 발전모듈 적용차량의 실제 도로 운행 시 측정된 일사량 데이터를 통하여 태양광 발전모듈을 탑재한 차량의 발전특성을 연구하였다.

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