功率互济的多独立微电网运行优化及分析

Operation optimization and analysis of independent double microgrid group with power mutual assistance

本文提出一种将临近的独立微电网进行互联,构成多独立微电网(MIMG)的能量调度管理策略,在确保多个独立微电网可靠运行的同时,兼顾MIMG的经济效益。针对微电网之间的能量互济,首先提出了先充电后互济和先互济后充电两种策略,为了加强微电网的可靠性,在两种策略的基础上做了优化,将聚类分析和粒子群优化算法进行结合,提出了MIMG等级划分策略,并仿真验证了调度策略的有效性。

This paper proposes an energy scheduling management strategy to interconnect adjacent independent microgrids to form multi-independent-microgrid,which takes into account the economic benefits of MIMG while ensuring the reliable operation of MIMG.Aiming at the energy mutual aid between microgrids,two strategies of charging before mutual aid and charging after mutual aid are proposed.In order to strengthen the reliability of microgrid,the two strategies are optimized based on the two strategies.The MIMG classification strategy is proposed by combining cluster analysis and particle swarm optimization algorithm.The effectiveness of the scheduling strategy is verified by simulation.