交直流混合微电网接入分布式新能源的关键技术研究综述

A Review on AC/DC Hybrid Microgrid Key Technology Containing Distributed New Energy

随着传统能源的日益短缺和环境问题的日趋严重,分布式电源接入是电网发展的必然趋势。微电网是促进分布式能源消纳与管理的有效模式,而交直流混合微电网因其兼备交流微电网与直流微电网的优点,已成为研究热点。该文综合国内外交直流混合微电网的已有研究成果和相关内容,从交直流混合微电网的拓扑结构与容量配置、性能评估、电源管理与保护技术等方面进行总结概括,并对交直流混合微电网的发展前景和实际应用的相关问题做出展望,对国内交直流混合微电网的进一步发展提供相关思路,具备现实意义。

With the problems of energy shortage and environmental crisis,the integration of distributed energy is the essential way to develop power grid. Microgrid is an effective mode to promote the consumption and management of distributed energy,and AC/DC hybrid microgrid becomes a hot topic due to the advantages of both AC microgrid and DC microgrid. According to the existing research achievements about AC/DC hybrid microgrid domestic and overseas,this paper summarizes the topological structure and capacity allocation, performance evaluation, power management and protection technology of AC/DC hybrid microgrid. Then,this paper discusses the development prospect and practical application of AC/DC hybrid microgrid,and proposes some suggestions for the further development of AC/DC hybrid microgrid in China,which has practical significance.