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2022 Vol.42, Issue 5 Preview Page
Characteristics of PV Short Circuit Faults Through Experiment with Line-Line Faults in PV Arrays

태양광 직류 전로 사고 실증실험을 통한 태양광 단락사고 특성

Sung-Koo Cho1
,
Do-Yun Jung1
,
Jae-Hyun Kim1
,
Ji-Yeon Kim1
,
Jun-Tae Kim2*
조 성구1
,
정 도연1
,
김 재현1
,
김 지연1
,
김 준태2*
1Senior Researcher, Safety Research Department, Electrical Safety Research Institute of Korea Electrical Safety Corporation (KESCO)
2Professor, Department of Energy Systems Engineering, Kongju National University
1한국전기안전공사 전기안전연구원 안전연구실, 선임연구원
2공주대학교 에너지시스템공학과(대학원), 교수
*Corresponding Author
30 October 2022. pp. 53-62
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Abstract

The rapid development of the solar industry over the past several years has expanded the significance of photovoltaic (PV) systems. Fault analysis in photovoltaic arrays is a fundamental task to increase reliability, efficiency, and safety in PV systems. If no fault is detected, it may reduce power generation, accelerate system aging, and increase the risks of fire hazards. In this study, we considered the line–line fault through verification experiments in PV arrays for fire hazard analysis and analyzed accident characteristics to improve electrical safety in PV systems. This paper presents a comparison and analysis of accident characteristics regarding the location of the accident, use of blocking diodes, and PV inverter operation. String line–line fault protection in systems without blocking diodes should be designed considering the current acceptable ratings of all facilities in the path, from the combiner box to the PV module. In addition, the array line-line fault characteristics include short-circuit current from the solar array and back feed current from the inverter based on the accident point. These accident currents contribute to fire accidents with strong arcs from the short-circuit point.

Keywords
PV system
PV line-line fault
Overcurrent protection
Electrical safety
Back feed current
키워드
태양광발전시스템
태양광 단락 고장
과전류 보호
전기 안전
역전류
References
1
Detollenaere, A. and Masson, G., Snapshot of Global PV Markets 2021, IEA-PVPS T1-39, 2021.
2
National Fire Agency, National Fire Data System, 2022.
3
Pillai, D. S. and Rajasekar, N., A Comprehensive Review on Protection Challenges and Fault Diagnosis in PV Systems, Renewable Sustain. Energy Rev., Vol. 91, pp.18-40, 2018. 10.1016/j.rser.2018.03.082
4
Ducange, P., Fazzolari, M., Lazzerini, B., and Marcelloni, F., An Intelligent System for Detecting Faults in Photovoltaic Fields, in Proceedings of the 11th International Conference on Intelligent Systems Design and Applications, pp. 1341-1346, November 2011, Cordoba, Spain. 10.1109/ISDA.2011.6121846
5
Pillai, D. S. and Rajasekar, N., Metaheuristic Algorithms for PV Parameter Identification: A Comprehensive Review with an Application to Threshold Setting for Fault Detection in PV Systems, Renewable Sustain. Energy Rev., Vol. 82, pp. 3503-3525, 2018. 10.1016/j.rser.2017.10.107
6
Falvo, M. C. and Capparella, S., Safety Issues in PV Systems: Design Choices for a Secure Fault Detection and for Preventing Fire Risk, Case Studies in Fire Safety, Vol. 3, pp. 1-16, 2015. 10.1016/j.csfs.2014.11.002
7
Nieto, A. E., Characterization of Electric Faults in Photovoltaic Array Systems, Revista DYNA, Vol . 86, No. 211, pp. 54-63, 2019. 10.15446/dyna.v86n211.79085
8
Johnson, J., Montoya, M., McCalmont, S., Katzir, G., Fuks, F., and Earle, J., Differentiating Series and Parallel Photovoltaic Arc-faults, 38th IEEE Photovoltaic Specialists Conference, PVSC 2012, June 2012, Austin, TX, USA. 10.1109/PVSC.2012.6317708
9
Armijo, K. M., Johnson, J., Harrison, R. K., Thomas, K. E., Hibbs, M., and Fresquez, A., Quantifying Photovoltaic Fire Danger Reduction with Arc-Fault Circuit Interrupters, Progress in Photovoltaics, December 2014, Amsterdam, NED. 10.1002/pip.2561
10
Armijo, K. M., Johnson, J., Hibbs, M., and Fresquez, A., Characterizing Fire Danger from Low Power PV Arc-Faults, 40th IEEE PVSC, June 2014, Denver, CO, USA. 10.1109/PVSC.2014.6925658
Information
  • Publisher :Korean Solar Energy Society
  • Publisher(Ko) :한국태양에너지학회
  • Journal Title :Journal of the Korean Solar Energy Society
  • Journal Title(Ko) :한국태양에너지학회 논문집
  • Volume : 42
  • No :5
  • Pages :53-62
  • Received Date : 2022-09-29
  • Revised Date : 2022-10-12
  • Accepted Date : 2022-10-13
  • DOI :https://doi.org/10.7836/kses.2022.42.5.053
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