Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
권호 표지
DOI QR코드

DOI QR Code

The Characteristics of PV module under the Partial Shading Condition and with a Failure of Bypass Diode with Short

PV모듈의 음영 상태 및 바이패스 다이오드 단락 고장 특성 분석

  • 고석환 (한국에너지기술연구원 태양광연구실) ;
  • 주영철 (한국에너지기술연구원 태양광연구실) ;
  • 소정훈 (한국에너지기술연구원 태양광연구실) ;
  • 황혜미 (한국에너지기술연구원 태양광연구실) ;
  • 정영석 (한국에너지기술연구원 태양광연구실) ;
  • 강기환 (한국에너지기술연구원 태양광연구실)
  • Received : 2016.06.09
  • Accepted : 2016.08.11
  • Published : 2016.08.30
Download PDF
⟨ Previous Next ⟩

Abstract

A bypass diode is connected in parallel to solar cells with opposite polarity. The advantage of using the bypass diode is circumvented a destructive efforts of hot-spot heating in the photovoltaic(PV) module. In addition, it is possible to reduce a energy loss under the partial shading on the PV module. This paper presents a characteristic of photovoltaic module under partial shading condition and with defective bypass diode by using the experimental data. The results of field testing for each photovoltaic modules, when photovoltaic system which is connected power grid is operating, the inner junction-box temperature of shading photovoltaic module is high $5^{\circ}C$ because of difference of flowing current through into bypass diode. And incase of not operating photovoltaic system, the inner junction-box temperature of module with defective bypass diode is greatly higher than partial shading PV module.

Keywords

References

  1. Jung-Hun So, Yeong-Seok Jung, Byung-Gyu Yu, Gwon-Jong Yu, and Ju-Yeop Choi, The Loss Factor Analysis for PV System Optimization, Journal of the Korean Institute of Power Electronics, Vol.11, No.1, pp.22-29, 2006. 2
  2. Kang Gi-Hwan, Go Seok-Hwan, Jung Young-Seok, The type of complaints and failure of photovoltaic system, Bulletin of the Korea Photovoltaic Society Vol. 1 No. 1, 2015. 06
  3. Ji Yang-Geun, Kong Ji-Hyun, Kang Gi-Hwan, Yu Gwon-Jong, Ahn Hyung-gun, Han Deuk-Young, The Characteristic of the Performance of the Bypass Diode with Composition Change of the String in Si-PV Module, Journal of Korea Institute of Electronics Engineers, Vol.50, No.7, pp. 985-996, 2014
  4. Chae Myoung-Suk, Suh Hun-Young, A Study on Bypass Characteristics for Photovoltaic Module, Journal of the Korean Institute of Power Electronics, pp.79-80, 2014. 11
  5. So Jung-Hun, Lim Hyun-Mook, Hwang Hye-Mi, Jung Young-Seok, Ko Suk-Whan, Ju Young-Chul, Loss Calculation Method of Grid-Connected Photovoltaic System, Journal of the Korean Solar Energy Society, Vol. 33, No. 5, 2013
  6. So Jung-Hun, Choi Ju-Yeop, Yu Gwon-Jong, Jung Young-Seok, Choi Jae-Ho, A Study on Performance Analysis of 3kW Grid-Connected PV Systems, Journal of the korean Solar Energy Society Vol. 24, No. 2, 2004
  7. Pearsall NM., Atanasiu B., Zdanowicz T., Progress on the Modernisation of the European PV System Monitoring Guidelines, European Photovoltaic Solar Energy Conference, pp.3208-3216, 2008
  8. Lijun Gao, Roger A. Dougal, Shengyi Liu, Albena P. Iotova, Parallel-Connected Solar PV System to Address Partial and Rapidly Fluctuating Shadow Conditions, Journal of the Institute of Electrical and Electronics Engineers, Vol. 56, No. 5, 2009. 5
  9. Kim Seung-Tae, Kang Gi-Hwan, Ahn Hyung-Keun, Han Deuk-Young, Yu Gwon-Jong, The Electrical Characteristics of Shading Effect in Photovoltaic Module, Journal of the Korean Solar Energy Society, pp.257-262, 2008.4
  10. Shin Woo-Gyun, Jung Tae-Hee, Go Seok-Hwan, Ju Young-Chul, Chang Hyo-Sik, Kang Gi-Hwan, Analysis on thermal & electrical characteristics variation of PV module with damaged bypass diodes, Journal of the Korean Solar Energy Society Vol.35, No. 4, pp.67-75, 2015 https://doi.org/10.7836/kses.2015.35.4.067

Cited by

  1. Origin of Bypass Diode Fault in c-Si Photovoltaic Modules: Leakage Current under High Surrounding Temperature vol.11, pp.9, 2018, https://doi.org/10.3390/en11092416
  2. Current Flow Analysis of PV Arrays under Voltage Mismatch Conditions and an Inverter Failure vol.9, pp.23, 2016, https://doi.org/10.3390/app9235163
  3. PV모듈의 바이패스 다이오드 단락 고장 시 태양광어레이 회로 특성분석 vol.39, pp.6, 2016, https://doi.org/10.7836/kses.2019.39.6.015