Droop Controller to Power Sharing among Inverters in Distributed Generation Microgrids in Distributed Generation Microgrids

Abstract

In last years, several countries have shown massive interest in Micro Grid technology, In order to meet the demand for electricity due to the development of the population by integrating renewable energy and reducing the greenhouse gas emission. When we integrate renewable energies into smart grids, the idea of a micro grid (MG) becomes real, The micro-grid is a sophisticated, intellectual, local and small network that can be separated from the central network and operates autonomously but the integration of distributed renewable energy generations is expecting frequency and voltage droop due to increasing demand of PV and load. To permit zero net-energy consumption and best power management for future smart city or buildings, this paper discusses the (DC) voltage and frequency regulation approach to address the rise/drop of voltage in a Microgrid, equipped with a residential Photovoltaic (PV) system, storage battery (SB), residential load and Smart Control Strategies (SCS) of parallel operated voltage source inverter (VSI). Voltage and frequency can be regulated by controlling the active and reative power. The effectiveness of the proposed Droop Controller is verified by numerical simulation. A Simulation result of (MG) is given to demonstrate the effectiveness of the proposed approach