Series DC Arc Simulation of Photovoltaic System Based on Habedank Model

Xinran Li, Chenyun Pan, Dongmei Luo and Yaojie Sun
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Xinran Li: Department of Illuminating Engineering and Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China
Chenyun Pan: Department of Illuminating Engineering and Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China
Dongmei Luo: Innovation Institute of ISoftStone, ISoftStone Co., Ltd., Beijing 100193, China
Yaojie Sun: Department of Illuminating Engineering and Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China

Energies, 2020, vol. 13, issue 6, 1-16

Abstract: Despite the rapid development of photovoltaic (PV) industry, direct current (DC) fault arc remains a major threat to the safety of PV system and personnel. While extensive research on DC fault arc has been conducted, little attention has been paid to the long-time interactions between the PV system and DC arc. In this paper, a simulation system with an arc model and PV system model is built to overcome the inconvenience of the fault-arc experiments and understand the mechanism of these interactions. For this purpose, the characteristics of the series DC arc in a small grid-connected PV system are first investigated under uniform irradiance. Then, by comparing with different arc models, the Habedank model is selected to simulate the fault arc and a method to determine its parameters under DC arc condition is proposed. The trends of simulated arc waveforms are consistent with the measured data, whose fitting degree in adjusted R-squared is between 0.946 and 0.956. Finally, a phenomenon observed during the experiment, that the negative perturbation of the maximum power point tracking (MPPT) algorithm can reduce the arc current, is explained by the proposed model.

Keywords: PV arc fault; DC arc model; fault arc simulation; arc characteristics; renewable energy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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