Coordination Control of a Hybrid Ac-Dc Micro-grid at Different Generation and Load

Abstract

The hybrid micro-grid is developing because of providing reliable electricity from renewable energy sources. This paper introduces hybrid AC/DC micro-grids which will help to develop distribution generation system and the interconnection between distribution generation and customer. Here, a hybrid smart micro-grid system is designed in MATLAB (SIMULINK) with some renewable energy sources (wind, PV system, fuel cell). This system will have the ability to deliver electrical energy on both micro grids variation of generation and load. Different coordination control systems are proposed for assuring stability under various generations and load conditions. The simulation results show proper power sharing among AC micro-grid, DC micro-grid and utility grid. AC and DC bus voltages remain steady both in autonomous and grid-tied mode.