微网电池储能系统通用综合控制策略  

A General-Purpose Control Strategy for Battery Energy Storage System in Microgrid

作　　者：董宜鹏[1] 谢小荣[1] 孙浩[2] 陈志刚[2] 刘志文[2] 

机构地区：[1]电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系),北京市海淀区100084 [2]中国能源建设集团广东省电力设计研究院,广东省广州市510600

出　　处：《电网技术》2013年第12期3310-3316,共7页Power System Technology

基　　金：国家863高技术基金项目(2012AA050216)~~

摘　　要：储能系统作为微网的功率/能量缓冲环节,对微网的稳定控制、电能质量改善和不间断供电起着重要作用,是微网安全可靠运行的关键。首先分析了微网中储能系统常用的3种控制策略,讨论了其在微网不同运行控制模式中的应用;进而设计了一种针对电池储能系统(battery energy storage system,BESS)逆变器外环控制器的综合控制策略,能够兼具PQ控制、V/f控制和下垂控制功能,从而既可以用于主从控制的微网,也能用于对等控制的微网;同时还考虑了微网从孤岛转入并网和并网转入孤岛的双向切换过程,对设计的BESS综合控制策略进行了改进,实现了双向的平滑切换。算例结果验证了提出的综合控制策略的有效性。As a buffer for microgrid, energy storage system plays a significant role in stability control, power quality improvement and uninterrupted power supply. Energy storage system is the key to safe and reliable operation of microgrid. Firstly, three kinds of energy storage system control strategies are introduced, and the application in different microgrid operation control modes is analyzed, Secondly, a comprehensive control strategy for the outer loop controller of battery energy storage system （BESS） is designed, to achieve PQ control, v/f control and droop control, which makes BESS can be applied in different microgrids using master-slave control or peer-to-peer control. In addition, the bi-directional switchover between grid-connected mode and islanded mode is considered, and an improved BESS comprehensive control strategy to realize smooth switchover is proposed, Finally, the validity of the strategy is verified through simulation.

关 键 词：微网 电池储能系统 外环控制器 综合控制策略 平滑切换 

分 类 号：TM721[电气工程—电力系统及自动化]