Series DC Arc Simulation of Photovoltaic System Based on Habedank Model

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.

6th International Online Conference on Electronics, Materials Engineering & Nano-Technology, IEMENTech 2022

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Modeling and analysis of transition-point disappearance in high-speed railway pantograph-catenary system

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A Method of DC Arc Detection in All-Electric Aircraft

“…These environmental factors lead to the insulation being declined or the cable connection loosened, which make it easier to cause arc faults. The arc discharge is also an erratic phenomenon affected by different power electronic loads and controllers [2]. Different environment makes these arc faults hard to reproduce during the maintenance after the aircraft has landed [3].…”

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