Impact of Grid-connected PV system on power quality: Rwanda electric Grid case

Abstract

Clean energy, in general, and solar PV systems, in particular, offer excellent solutions to challenges that people confront in their daily lives. When compared to the use of fossil fuels, energy generation with solar PV systems is less expensive and more environmentally friendly. Apart from its benefits, this technology still has numerous problems when connected to electric grid. Data were collected using appropriates methods and other are gathered from Meteo Rwanda by use of Homer software. In this work a Grid-connected PV systems was modelled and analysed using ETAP. It was seen that when PV power plant is connected to the electric network, it generates harmonics which exceeds the allowable limits. The analysis was done at different buses and at the output of inverters.