摘要
微网是解决未来智能电网系统中大规模可再生能源接入问题的重要手段,其中,交直流混合微网兼顾了交流微网和直流微网二者的优点,将成为未来微网发展的主流。微网中通常采用电力电子变换器作为微源进行电能变换的接口,如何实现接口变换器之间功率合理配置是微网控制系统的重要目标。文章从交直流混合微网3个组成部分(交流子微网、直流子微网、交直流互联变换器)出发,对相应的功率控制技术进行了全面的阐述;总结并归纳出交流、直流子微网功率控制技术的通用之处和各自特点。最后,结合未来智能电网的特点,对交直流混合微网未来关键技术进行了讨论和展望。
Microgrid is an important solution for large scale penetration of distributed energy resources（DERs） in future smart grid, and hybrid AC-DC microgrid with advantages of both AC and DC microgrids will be the most promising architecture. Power conversion usually achieved with power electronic converters in microgrid is fundamental objective of microgrid control system to realize reasonable power sharing among interface converters. In this paper, various kinds of power control technologies were comprehensively expounded in three components, i.e. AC sub-grid, DC sub-grid and interlinking converter, respectively. Similarities and differences of power control technologies between different sub-grids were summarized and classified. Finally, development of hybrid micro-grid was discussed and prospected.
出处
《电网技术》
EI
CSCD
北大核心
2017年第1期29-39,共11页
Power System Technology
基金
中央高校基本科研业务费专项资助(2014YJS121)~~
关键词
智能电网
分布式能源
交直流混合微网
功率控制技术
smart grid
distributed energy resources
hybrid AC-DC microgrid
power control technologies
