Structure Design of Island Microgrid System

Abstract

This paper makes a detailed analysis on several typical island microgrid structures and points out the limitations existing in the present island microgrid designs. On that basis, several criterions of island microgrid design are given, including the power reliability of island grid, the economy of island grid construction and operation, the full utilization of resources, and the system flexibility. Under the guidance of the above criterions, two structure designs of island microgrid suiting different island geographical environment, load types and power distribution are proposed, whose reliability and economy are analyzed in detail as well. This paper presents the criterions of island microgrid design, which provides a new reference for island microgrid structure design and offers help to develop island microgrid in the future