PHOTOVOLTAIC ARRAY FAULT LOCATION METHOD BASED ON MATRIX PERTURBATION METHOD AND SENSOR OPTIMAL CONFIGURATION

Chen Wei; Ding Cong; Pei Tingting; Zhang Xinyin

doi:10.19912/j.0254-0096.tynxb.2023-1479

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (1) : 641-653. DOI: 10.19912/j.0254-0096.tynxb.2023-1479

PHOTOVOLTAIC ARRAY FAULT LOCATION METHOD BASED ON MATRIX PERTURBATION METHOD AND SENSOR OPTIMAL CONFIGURATION

Chen Wei, Ding Cong, Pei Tingting, Zhang Xinyin

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Abstract

Aiming at the problem that the existing fault location methods of photovoltaic array are difficult to consider the positioning accuracy and cost of components at the same time, a fault location method of photovoltaic array based on information entropy principle and matrix perturbation method is proposed. Firstly, according to the characteristic values of the photovoltaic system under different fault conditions, the sensors are arranged and the output values of the photovoltaic array side are obtained by the sensor configuration method based on information entropy. Then, the response matrix is constructed and the trace and spectral radius of the matrix are used as fault features. The corresponding relationship between the trace and spectral radius of the response matrix and the output value of the photovoltaic array under different fault conditions can accurately locate the fault location. Finally, the proposed sensor configuration and matrix perturbation method are verified by experiments and simulations. The experimental and simulation results verify the feasibility and effectiveness of the proposed method.

Key words

solar cell arrays / fault location / sensors / least squares fitting / matrix perturbation

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Chen Wei, Ding Cong, Pei Tingting, Zhang Xinyin. PHOTOVOLTAIC ARRAY FAULT LOCATION METHOD BASED ON MATRIX PERTURBATION METHOD AND SENSOR OPTIMAL CONFIGURATION[J]. Acta Energiae Solaris Sinica. 2025, 46(1): 641-653 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1479

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