关于微网的新型配电系统研究概述与思考

Summary and thinking on the research of new distribution system of microgrid

微网是一个自治的小型配电系统,研究微网对缓解世界能源危机和环境污染问题具有重要意义。本文首先介绍了微网的概念及特征,对微网现有的结构分类进行说明,简要介绍并网与孤岛两种运行模式,并从微网的分层控制策略、电能质量、保护等方面进行了总结,最后阐述了基于储能的低压直流微网在未来配电系统形态中的发展趋势,并在直流微网工程实用化方向提出了思考。

Microgrid is an autonomous small power distribution system, researching microgrid is of great significance in mitigating the world energy crisis and environmental pollution. This paper first introduces the concept and characteristics of microgrid, explain the existing structural classification of the microgrid, briefly introduce the two modes of operation: grid connection and island operation. And summarized some aspects from the microgrid layered control strategy, power quality, protection, etc. Finally, the development trend of low-voltage DC microgrid based on energy storage in the future distribution system configuration is expounded, and put forward thinking in the practical direction of DC microgrid engineering.