Abstract: Today, Increase the demand for Renewable Energy Sources (RES) in distribution systems because total energy demand is supplied by the burning of fossil fuels and it is limited. In this paper presents a control strategy of three-phase four-wire grid interfacing inverter to effectively utilize the renewable energy Source with a grid. In the contrary of decrease of fossil energy now a days, the demand of energy, the global warming, and continuous increase in oil prices have got attention all over the world. Since without energy life is an imaginary, the newly emerging renewable energy technologies are hope fully at least minimizing the problem. The concept of "electric spring" is proposed to enhance the stability of the smart grid with intermittent renewable energy sources.

Keywords: Energy saving; energy efficiency; renewable energy sources; integrated systems of RES; emergency power supply; energy efficiency, electric vehicle, and renewable energy optimization. DC-DC converters, Boost converter, Flyback converter, High step-up gain.

| DOI: 10.17148/IJIREEICE.2020.8620