A Review on Hybrid AC-DC Micro Grids Model-An Overview

Abstract

In a conventional process for deployment of micro grid design has been primarily focuses on AC systems. However DC micro grids are gaining much more attention due to existence of distinct advantages they provide over AC micro grids by eliminating the need for synchronization and the frequency amendments as well as appropriateness in sustaining DC loads and “distributed energy resources (DERs)” . By considering both the AC and DC DERs are further utilized in micro grids as the hybrid micro grids would offer viable and economic solutions as they are capable of eliminating the requirement of AC-to-DC or DC-to-AC voltage conversions. In this paper we primarily focus on a hybrid micro grid planning model whose primary objective of reducing the micro grid attained planning cost as a micro grid comprises of distinct clusters of loads that are distributed over generators by operating as a unique controllable system. Integrated energy delivery system micro grid has the capability to operate in parallel as it is isolated from the main power grid by introducing the decreasing multiple reverse conversions over a individual AC or DC grid by facilitating various connections to erratic renewable AC and DC sources that loads to power systems by reviewing AC & DC micro grid with hybrid model approach.