Abstract
Nature offers an enormous amount of free energy in the form of Sun [Photovoltaic (PV)]. Therefore, it is interesting to integrate this renewable, everlasting, and echo friendly energy into traditional grid connected power supply. In this study, an energy management system (EMS) is proposed for the proper PV energy integration and utilization into microgrids. For prototype, simulations were performed for 1 kW PV array, 1.5 kVA inverter, and 1.5 kW load employing Lab VIEW. Boolean algebraic operators were incorporated for decisions. A sine wave frequency generator with the desired voltage and frequency measurements was introduced for both grid and PV sources. Numerical indicators are used for current, voltage, and frequency display. The proposed system offers integration and management of PV and national grid power for domestic power utilization. To test the capabilities of the developed EMS, the results were compared with the already established methods. In the developed method, PV is considered as a primary power source for domestic appliances (load) during daytime along with the national grid as a secondary power source. Moreover, to establish its feasibility, economic implications are also discussed. Published by AIP Publishing.