Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

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

DOI QR Code

Diagnosis Method of PV Module Mismatch using Voltage and Current Waveforms

태양광 모듈의 전압 및 전류 파형을 이용한 부정합 진단 기법

  • Ahn, Hee-Wook (Dept. of Electronic Engineering, Kumoh National Institute of Technology) ;
  • Park, Gi-Yob (Dept. of Electronic Engineering, Graduate School, Kumoh National Institute of Technology)
  • 안희욱 (금오공과대학교 전자공학부) ;
  • 박기엽 (금오공과대학교대학원 전자공학부)
  • Received : 2011.03.08
  • Accepted : 2011.05.03
  • Published : 2011.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Techniques for mismatch loss minimization to increase the PV system efficiency are under development recently. In this paper, a method to make diagnosis of PV module mismatch is presented, which uses a concept of operating point factor. The method is based on the fact that the ratio of the incremental conductance of a PV module to instantaneous conductance is 1 when the module is operating at its maximum power point. The variations of module voltage and current are taking place by the maximum power point tracker in the power conditioning units of PV system. The effectiveness of the method is verified through an application to a real PV system.

Keywords

References

  1. N.D. Kaushika, AnilK. Rai, "Aninvestigation of mismatch losses in solar photovoltaic cell networks", Energy 32 (2007) pp.755-75 https://doi.org/10.1016/j.energy.2006.06.017
  2. D. Picault, B. Raison, S. Bacha, J. de la Casa, J. Aguilera, "Forecasting photovoltaic array power production subject to mismatch losses", Solar Energy 84 (2010) pp.1301-1309, www.elsevier.com/locate/solener https://doi.org/10.1016/j.solener.2010.04.009
  3. Jinlei Ding, Rakesh Radhakrishnan," A new method to determine the optimum load of a real solar cell using the Lambert W-function", Solar Energy Materials & Solar Cells 92 (2008) 1566-1569 https://doi.org/10.1016/j.solmat.2008.07.004
  4. A.S.Bahaj, R.M.Braid, P.A.B.James, "Post in stallation optimisation of a building integrated PV system at Southampto University", Conf. Record of 29th IEEE PV Specialists Conference, May 2002, pp. 1504-1507
  5. D. Picault, B. Raison, S. Bacha, J. Aguilera, J. De La Casa,"Changing photovoltaic array interconnections to reduce mismatch losses: a case study", "EEEIC 2010 9th (Int'l Conf. on Environment and Electrical Engineering), Prague, pp. 37-40
  6. G. Walker, P. Sernia, "Cascaded DC-DC Converter Connection of Photovoltaic Modules", IEEE Tr. on P.E., Vol. 19, No. 4,pp. 1130-1139, July 2004 https://doi.org/10.1109/TPEL.2004.830090
  7. 안희욱, "태양광 PV 스트링에서의 모듈 부정합 손실의 분석 및 개선 기법 타당성 연구", 한국태양에너지학회 논문집, Vol. 29, No. 1, pp. 58-63, 2009
  8. T. Esram, P. L. Chapman, "Comparison of Photovoltaic Array Maximum Power Point Tracking Techniques", IEEE Tr. on Energy Conversion, Vol. 22, No. 2,pp. 439-449, June 2007. https://doi.org/10.1109/TEC.2006.874230
  9. C. Hua, C, Shen, "Comparative study of peak power tracking techniques for solar storage systems," Proc. IEEE APEC'98, pp. 697-685, 1998.