微网群作为多个微电网、分布式电源、储能及负载的互联系统,其组成结构的复杂性增加了控制的复杂性,合理有效的控制策略是微网群稳定运行的基础。根据现有文献资料对微网群研究中的组网形式及协调控制策略的研究现状做了详尽的阐述,列举了交流总线架构、交直流总线架构及虚拟微网群总线架构的组网形式,比较了微网群分级控制、主从控制、多代理控制及对等控制策略的优缺点,最后根据已有的研究基础,对微网群未来的发展及研究中的关键技术提出了建议性方案。
Multi-microgrid system is an interconnected system of microgrids,distributed generations,energy storages and loads,its control is more complicated due to its complex structure,and the reasonable and effective control strategy is the basis of its stable operation. The existing documents of multi-microgrid research on networking modes and coordinative control strategies are overviewed in detail,the networking modes of AC bus structure,AC-DC bus structure and virtual multi-microgrid bus structure are listed,and the strategies of hierarchical control,master-slave control,multi Agent control and peer-to-peer control are compared. Suggestive schemes about the key technologies in the future development and research of multi-microgrid are proposed based on the recent researches.