• Title/Summary/Keyword: PV generation

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A Study on the Comparison of the PV Module Generation from Daylight Irradiation and Indoor Lighting Savings with Lighting Simulation (일사량 분석을 통한 PV모듈 발전량과 시뮬레이션을 이용한 실내 조명에너지 절감량 비교)

  • Park, Yoon-Min;Hong, Seong-Kwan;Choi, An-Seop
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.24 no.12
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    • pp.17-24
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    • 2010
  • Recently, BIPV system which is good enough for maintenance and functions with the shading system is being used. However BIPV system with the shading system is different from existing PV module because of using flexible PV module. Prior to the application of the BIPV system, the clearness index was calculated by Erbs et al.(1982) and analyzed for the amount of electric power generation of sky irradiance with measured data. To predict electric lighting energy savings in daylit space, electric lighting power savings with amount of PV module electric power generation was compared by using Relux 2010 software in this study.

Control Method of Output of PV Generation System using Shunt Active Filter (엑티브필터를 사용한 태양광 발전시스템의 출력제어)

  • Seong, Nak-Gueon;Park, Min-Won;Yu, In-Keun
    • Proceedings of the KIEE Conference
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    • 2002.04a
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    • pp.225-227
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    • 2002
  • In this paper, novel concept of a photovoltaic(PV) power generation system adding the function of active filter(AF) is proposed. Even PV power generation system can be treated to a harmonics source for the power distribution system, it is necessary that the function of AF system in grid connected PV power generation system. Active Filters intended for harmonic solutions are expending their functions from harmonic compensation of nonlinear loads into harmonic isolation between utilities and consumer, and harmonic damping throughout power distribution system. So, the PV system combined the function of AF system can be usefully applied in power distribution system. Here, the control strategy of PV-AF system is introduced.

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Photovoltaic System Output Forecasting by Solar Cell Conversion Efficiency Revision Factors (태양전지 변환효율 보정계수 도입에 의한 태양발전시스템 발전량 예측)

  • Lee Il-Ryong;Bae In-Su;Shim Hun;Kim Jin-O
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.54 no.4
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    • pp.188-194
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    • 2005
  • There are many factors that affect on the system output of Photovoltaic(PV) power generation; the variation of solar radiation, temperature, energy conversion efficiency of solar cell etc. This paper suggests a methodology for calculation of PV generation output using the probability distribution function of irradiance, PV array efficiency and revision factors of solar cell conversion efficiency. Long-term irradiance data recorded every hour of the day for 11 years were used. For goodness-fit test, several distribution (unctions are tested by Kolmogorov-Smirnov(K-S) method. The calculated generation output with or without revision factors of conversion efficiency is compared with that of CMS (Centered Monitoring System), which can monitor PV generation output of each PV generation site.

Photovoltaic Generation System Output Forecasting using Irradiance Probability Distribution Function (일사량 확률분포함수를 이용한 태양광 발전시스템 발전량 예측)

  • Lee Il Ryong;Bae In Su;Jung Chang Ho;Kim Jln O;Shim Hun
    • Proceedings of the KIEE Conference
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    • summer
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    • pp.548-550
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    • 2004
  • This paper suggests a methodology for calculation of photovoltaic(PV) generation system output using probability distribution function, PV way efficiency and PV system design Parameters. Long term irradiance recorded for every hour of the day for 11 years were used. For goodness-fit test, several distribution functions are tested by Kolmogorov- Smirnov(K-S) test. And the calculated generation output is compared with that of CMS(Centered Monitoring System), which can monitoring PV generation output of each PV generation site.

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Study on the Variation Characteristic of the Photo-Volatic Power Generation due to Regional Meteorological Elements (국지 기상 요소에 의한 태양광 발전량 변동특성에 관한 연구)

  • Lee, Soon-Hwan;Kim, Hae-Dong;Cho, Chang-Bum
    • Journal of Environmental Science International
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    • v.23 no.11
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    • pp.1943-1951
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    • 2014
  • In order to clarify the characteristics of Photo-Volatic(PV) power generation over the Korean peninsula with complex terrain, special meteorological observation campaign was carried out for one year from 25 May 2011. Analysis is based on the comparison between observed meteorological elements and PV values generated at rated capacity 200 kW power plants. Solar radiation observed at $15^{\circ}$ inclined surface is 11 % larger than that observed at horizontal surface due to low elevation angel of the sun during winter season. The PV power generation tend to be more similar the variation of inclined surface irradiance than horizontal surface irradiance. Increasing air temperature often induce disturbance of the PV power generation. However, the higher the air temperature in winter season, the higher PV power generation because the PV module may be more activated at higher air temperature. PV generating efficiency tends to be conversed the value of 15%.

Study on variation of electrical characteristics of vertical PV module according to the change of irradiance and temperature (수직형 태양광발전모듈의 계절별 일사획득 및 온도변화에 따른 출력특성 변화에 관한 연구)

  • Park, Kyung-Eun;Kang, Gi-Hwan;Kim, Hyun-Il;Yu, Gwon-Jong;Kim, Jun-Tae
    • 한국태양에너지학회:학술대회논문집
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    • 2008.11a
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    • pp.57-62
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    • 2008
  • Building Integrated PV(BIPV) is one of the best fascinating PV application technologies. To apply PV module in building, various factors should be reflected such as installation position, shading, temperature, and so on. Especially the installation condition should be considered, for the generation performance of PV module is changed or the generation loss is appeared according to installation position, method, and etc. This study investigates variation of electrical characteristics of a PV module according to the change of irradiance and temperature. From this experimental study, we confirmed that the irradiance, the temperature variation and the generation performance of a PV module were appeared differently according seasonal variation. Actually the PV module installed in building facade showed high-generation performance in winter.

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A Study on the Conceptual Design & Test System of PV-AF System (PV-AF 시스템의 개념설계 및 시제작 시스템에 관한 연구)

  • Park, Young-Gil;Kim, Jong-Hyun;Park, Min-Won;Yu, In-Keun
    • Proceedings of the KIEE Conference
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    • 2005.07b
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    • pp.1687-1689
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    • 2005
  • In this paper, novel concept of a photovoltaic(PV) power generation system adding the function of active filter(AF) is proposed. Even PV power generation system can be treated to a harmonics source for the power distribution system, it is necessary that the function of AF system in grid connected PV power generation system. Active Filters intended for harmonic solutions are expending their functions from harmonic compensation of nonlinear loads into harmonic isolation between utilities and consumer, and harmonic damping throughout power distribution system. So, the PV system combined the function of AF system can be usefully applied in power distribution system. Here, the control strategy of PV-AF system is introduced.

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A Novel Simulation model of Solar Cell using EMTDC (EMTDC를 이용한 태양전지의 새로운 시뮬레이션 모델)

  • Park, Min-Won;Kim, Bong-Tae;Lee, Jae-Deuk;Yu, In-Keun;Sung, Ki-Chul
    • Proceedings of the KIEE Conference
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    • 2000.11a
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    • pp.113-115
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    • 2000
  • So far, it was very difficult to simulate the dispersed generation system including PV generation system using EMTP or EMTDC because the source of the dispersed generation system has a particular VI characteristic equation. In this paper, a novel simulation method of PV generation system has proposed and a new solar cell component for EMTDC is also developed. The VI characteristic equation of solar cell is used in order to realize the solar generation system in EMTDC simulation. Consequently the simulation of PV power generation system using field data is realized and acceptable results, which show close match between the real data of PV panel and the simulated data, were obtained.

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Experimental Analysis of Ventilation Effect on the Performance of Building-Integrated PV Solar Roof (건물통합형 PV Solar Roof의 통풍효과 실험분석)

  • Kim, Jin-Hee;Lee, Kang-rock;Kim, Jun-Tae
    • Journal of the Korean Solar Energy Society
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    • v.26 no.1
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    • pp.73-79
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    • 2006
  • The integration of PV modules into building facades or roof could raise PV module temperature that results in the reduction of electrical power generation. Lowering operating temperature of PV module is important in this respect, and PV module temperature should be considered more accurately, for building-integrated PV(BIPV) systems in predicting their performance. This paper describes a BIPV solar roof design and verifies its performance through experiment In relation to the effect of ventilation in space between PV module and roof surface. The results showed that the ventilation in the space had a positive effect in lowering the module temperature of the BIPV solar roof that enhanced the performance of its electricity generation.

A Novel Simulation Scheme for Grid Connected Photovoltaic Generation Systems

  • Park, Monwon;Kim, Bong-Tae;Yu, In-Keun
    • KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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    • v.11B no.4
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    • pp.169-174
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    • 2001
  • A novel simulation scheme of transient phenomenon for the photovoltaic (PV) generation system under the real weather conditions has been proposed in this paper. A grid connected PV array is simulated using PSCAD/EMTDC. The transient changes of the output current of PV array under the real weather conditions is described and the output current of DC/AC converter flowing through the utility power network is also analyzed with the PWM switching width. Moreover, the MPPT control of PV generation system is combined to the system during the simulation for the comparison purposes of the control schemes. The outcome of the simulation demonstrates the effectiveness of the proposed simulation scheme. The result shows that the cost effective verifying for the efficiency or availability and stability of PV generation systems and the comparison research of various control schemes like MPPT under the same real whether conditions are eventually possible.

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