Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Analysis of Power Generation Characteristics of a Photovoltaic System in Korea

태양광발전시스템 국내 지역별 발전특성 분석

  • Lee, Hyun-Seung (Department of Architectural Engineering, Graduate School, Daejeon University) ;
  • Kim, Beob-Jeon (Department of Architectural Engineering, Graduate School, Daejeon University) ;
  • Shin, U-Cheul (Department of Architectural Engineering, Daejeon University)
  • 이현승 (대전대학교 대학원 건축공학과) ;
  • 김법전 (대전대학교 대학원 건축공학과) ;
  • 신우철 (대전대학교 건축공학과)
  • Received : 2019.02.18
  • Accepted : 2019.04.11
  • Published : 2019.04.30
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Abstract

In this study, reflecting long-term climate characteristics, we analyzed electricity generation and generation characteristics of 3kWp PV system, which was semi-integrated with air duct behind. Using PVsyst as a simulation analysis tool, we inputted "National reference standard weather data" of 16 regions as a typical climatic data. The result is summarized as follows: First, the national average annual electricity generation was 1,312 kWh/kWp (StDev, ${\sigma}=71$). It was most abundant in Mokpo with 1,434 kWh/kWp, which was average 21% greater than the lowest with 1,165 kWh/kWp in Seoul and 1,197 kWh/kWp in Jeju. National average daily generating time based on STC was 3.6 hours (${\sigma}=0.43$), and that of Mokpo and Seoul was 3.9 and 3.2 hours respectively. Second, Jeju showed the great difference of annual monthly generation by month (annual average = 99.7 kWh/kWp, ${\sigma}=25.5$), while Jinju showed the smallest difference (annual average = 115.5 kWh/kWp, ${\sigma}=10.6$). Generation in Jeju was at the largest in April with 132.2 kWh/kWp, which was 2.3 times greater than the lowest 55.2 kWh/kWp in January. However, generation in Jinju was at the largest in March with 129.3 kWh/kWp, which was only 1.3 times greater than the lowest 101.1 kWh/kWp in June. Third, the annual average PR was the highest in Incheon with 85.8% and the lowest in Jeju with 83.2%. PR of Mokpo was 84.3%, which was lower than that of national average.

Keywords

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Fig. 1 Semi-integrated with air duct behind

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Fig. 2 Solar cell array diagram

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Fig. 3 Annual PV power generation

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Fig. 4 Monthly PV power generation

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Fig. 5 Performance Ratio generation

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Fig. 6 Performance ratio loss

Table 1 Weather data types

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Table 2 Annual total sorlar radiation on a horizontal surface

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Table 3 Specifications of photovoltaic module

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Table 4 Specifications of solar inverter

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Table 5 Monthly average daily power generation hours

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