Research on Assessing Fault Impacts on Power Quality in Modern Smart Distribution Systems with Renewable Integration

Incorporating renewable energy sources into conventional power distribution systems has gained prominence due to their capacity to enhance clean, secure, and sustainable energy, alongside facilitating environmental conservation. This study evaluates the effects of integrating photovoltaic (PV) and wind energy (WE) systems on power quality (PQ) and system stability (SS). We employ the NR method to achieve accurate results, which is noted for its reliability and rapid convergence. This study assesses system faults via load flow analysis to ascertain steady-state operational behavior and utilizes transient stability analysis using the stochastic adaptive NR method to evaluate voltage profiles and stability during transient conditions. Results demonstrate that RES’s uncoordinated and arbitrary integration poses considerable challenges to centralized power distribution systems, potentially imperiling system reliability and equilibrium and measures to alleviate adverse effects on PQ and SS.