A High-Performance Solar PV Array-Wind and Battery Integrated Microgrid for Rural Electrification

In this paper, a new control is utilized for the grid integrated-solar PV (Photovoltaic)-wind-battery energy storage system (GISWBS) with an automated transition capability between the grid tied mode (GTM) and standalone mode (SAM) of operation. The main aim behind the hybrid wind-solar PV and battery-based distributed generation (DG) system is the fact that both solar and wind power have exhibit complementary power profiles, which help in smoothing of intermittency in power and higher reliability. A single voltage source converter (VSC) is utilized for feeding AC local loads and interaction with the grid. This microgrid presents a focus on enhancing the power quality along with the generation of renewable energy sources (RESs). For the improvement in power quality, a generalized integrator (GI) type observer based current control scheme is used here, which controls VSC under GTM of operation. In SAM, the voltage control is implemented to regulate the frequency and voltage at desirable level according to the IEEE standard 1547–2018 standard. The battery is used to compensate for the intermittent nature of the power generated from RESs and connected varying loads. Moreover, during the unavailability of the grid, the loads have a continuous power supply due to the automated transition.