A Review on Development of Micro-Grid with load

Micro grids are modern, small scale, decentralized electrical energy system. These are solution for energy crisis, along with improving the power supply reliability, quality and efficiency .A small scale system and located near the consumer is called the Micro-Grid (MG) system. The interconnection of small generation to low voltage distribution systems can be termed as the Micro Grid. Micro Grids can be operated with and without a connection to the main power network. Micro-Grid(MG) is basically a low voltage (LV) or medium voltage (MV) distribution network which consists of a cluster of micro-sources such as photo-voltaic array, fuel cell, wind turbine etc. called distributed generators (DG’s); energy storage systems and loads; operating as a single controllable system, able to operate in both grid-connected and islanded mode. In a micro-grid the DG’s has sufficient capacity to carry all, or most of the load connected to the micro-grid. This paper presents the development of these micro-sources i.e photo voltaic array, fuel cell stack along with their power electronic interfacing circuits viz. boost converter, PWM inverter in Matlab/Simulink and finally combining these models to form a Micro-Grid. This paper aims at explaining a generalized Energy Management System involving the concept of a micro grid.