Simulation of fault detection in photovoltaic arrays




photovoltaic (PV) arrays, electric faults, common PV array faults, fault detection, partial shading


In solar systems, faults in the module and inverter occur in proportion to increased operating time. The identification of fault types and their effects is important information not only for manufacturers but also for investors, solar operators and researchers. Monitoring and diagnosing the condition of photovoltaic (PV) systems is becoming essential to maximize electric power generation, increase the reliability and lifetime of PV power plants. Any faults in the PV modules cause negative economic and safety impacts, reducing the performance of the system and making unwanted electric connections that can be dangerous for the user. In this paper have been classified all possible faults that happen in the PV system, and is presented to detect common PV array faults, such as open-circuit fault, line-to-line fault, ground fault, shading condition, degradation fault and bypass diode fault. In this studies examines the equivalent circuits of PV arrays with different topological configurations and fault conditions to evaluate the effects of these faults on the performance of a solar system, taking into account the influence of temperature and solar radiation. This work presents the validation of a simulated solar network by measuring the output curves of a low-power photovoltaic array system under real outdoor conditions. This method can be useful in future solar systems.


Download data is not yet available.


F. Jackson, Grid-connected Solar Electric Systems, The Earthscan Expert Handbook for Planning, Design and Installation 711 Third Avenue, New York, NY 10017, ISBN: 978–1–84971–344–3

Guerriero, P., Di Napoli, F., Vallone, G., d’Alessandro V. and Daliento, S., Monitoring and diagnostics of PV plants by a wireless self powered sensor for individual panels, IEEE Journal of Photovoltaics, 6(1), pp. 286-294, 2016.

T. Pei, X. Hao, A Fault Detection Method for Photovoltaic Systems Based on Voltage and Current Observation and Evaluation, Energies 2019, 12(9),1712,

A. E. Nieto, F. Ruiz, D. Patiño, Characterization of electric faults in photovoltaic array systems, October 2019 Dyna (Medellin, Colombia) 86(211):54-63,

I. Bodnar, Electric Parameters Determination of Solar Panelby Numeric Simulations and Laboratory Measurements during Temperature Transient, Acta Polytechnica Hungarica, Vol. 15, No. 4, 2018

M. S. Arani, M. A. Hejazi, The Comprehensive Study of Electrical Faults in PV Arrays, Hindawi Publishing Corporation, Journal of Electrical and Computer Engineering, Volume 2016, Article ID 8712960, 10 pages,

Alam, M.K., Khan, F.,Johnson,J. and Flicker, J., A Comprehensive Review of Catastrophic Faults in PV arrays: types, detection, and mitigation techniques, IEEE Journal of Photovoltaics, 5(3), pp. 982-997, 2015. 10.1109/JPHOTOV.2015.2397599

Ishaque, K.; Salam, Z. A review of maximum power point tracking techniques of PV system for uniform insolation and partial shading condition. Renew. Sustain. Energy Rev. 2013, 19, 475–488.

Li, G.; Jin, Y.; Akram, M.W.; Chen, X.; Ji, J. Application of bio-inspired algorithms in maximum power point tracking for PV systems under partial shading conditions—A review. Renew. Sustain. Energy Rev. 2018, 81, 840–873,

Fahrenbruch SA. Solar bypass diodes: Then and now. A PV Management Magazine 2010.

Ishikura N, Okamoto T, Nanno I, Hamada T, Oke S, Fujii M. Simulation analysis of really occurred accident caused by short circuit failure of blocking diode and bypass circuit in the photovoltaics system. In: 7th Int. IEEE Conf. Renew. Energy Res. Appl. ICRERA 2018, vol. 5. IEEE; 2018. p. 533e6. 10.1109/ICRERA.2018.8566896.

Chung G. L., Woo G. S., Jong R. L., Gi H. K., Young C. J., Hye M. H., Hyo S. C., Suk W. K., Analysis of electrical and thermal characteristics of PV array under mismatching conditions caused by partial shading and short circuit failure of bypass diodes, Energies 218. 2021,

Posbic J, Rhee E, Amin D. High temperature reverse by-pass diodes bias and failures. 2013. 2013, pvmrw13_ps3_memc_posbic.pdf.

Shiradkar NS, Schneller E, Dhere NG, Gade V. Predicting thermal runaway in bypass diodes in photovoltaic modules. In: 2014 IEEE 40th Photovolt. Spec.Conf. PVSC. Institute of Electrical and Electronics Engineers Inc.; 2014. p. 3585e8. 2014

Shin W-G, Jung T-H, Go S-H, Ju Y-C, Chang H-S, Kang G-H. Analysis on thermal & electrical characteristics variation of PV module with damaged bypass diodes. J Korean Sol Energy Soc 2015;35:67e75. kses.2015.35.4.067.

Shin WG, Ko SW, Song HJ, Ju YC, Hwang HM, Kang GH. Origin of bypass diode fault in c-Si photovoltaic modules: leakage current under high surrounding temperature. Energies 2018;11.




How to Cite

Lipták, R., & Bodnár, I. (2021). Simulation of fault detection in photovoltaic arrays. Analecta Technica Szegedinensia, 15(2), 31–40.