Impact Assessment of Large Scale Wind and PV Penetration into the Distribution Network using ETAP /

Abstract

To be able to reduce CO2 emission and move towards eco-friendly energy, the planet is moving towards alternative energy sources. The aims that will undoubtedly enhance the percentage of alternative energy inside the electrical grid include the use of distributed generation (DG), such as rooftop solar panels (PV) and wind turbines. According to the International Renewable Energy Agency, the number of nations that have chosen a goal to incorporate alternative energy on their electrical grid has increased from 43 to 168 in only 10 short years. These goals call for the use of Distributed Generation (DG), such as rooftop PV System, or the development of modest, distributed renewable energy facilities, such as wind farms and PV farms. The purpose of this study is to examine how the grid is affected by high PV and wind penetration. For the Western System Coordinating Council's distribution network, a detailed study of the test system supplied by the WSCC 3 Machines, 9 Bus Test Case (P.M. Anderson 9 Bus) using Etap software 19.01 produces a fairly crude approximation model to an analogous system with 9 buses and 3 generators. [1]-[3]. Six scenarios were taken into consideration, two types of tests were conducted to look into load flow analysis, transient stability analysis, and harmonic analysis were performed individually for each degree of transmission, and to simulate the effects of DG (Solar and Wind) plant penetration over time, three degrees of integration were considered. Furthermore, to be able to check out the grid performance during extreme climate conditions, scenarios were modeled to find the intermittent qualities of alternative energy generation. The acquired results demonstrated excellent performance from the grid for transmission under 40% while greater degree of wind and solar transmission takes some work and adjustment on the grid side.