Analyze the Impact of the Faults Levels on Grid-Connected Photovoltaic Systems using DIgSILENT Power Factory

Abstract

Distributed PV systems are a class of decentralized power generation systems that use renewable energy sources such as solar panels, wind generators, and water plants to produce electricity. The anti-islanding operating instruments separate the PV inverter from the power system when the power system fails. However, the PV system’s output power is impacted in real-time by the power supply after a few cycles. We evaluated the impact of a grid-connected PV system on power quality in deferments short-circuit faults cycles on a power system breakdown condition using the DigSilent power factory Simulink program. This paper aims to describe the process for sizing a solar-grid-connected home system and perform a steady-state analysis to verify the effect of photovoltaics on the system. The home load profile was evaluated considering the heating and air conditioning loads. The PV system was sized using estimated energy consumption. Power generated by the photovoltaic system was estimated and the main parameters of the system operation were investigated.