摘要
针对多个自治微电网互联合作运行时,由于分布式电池储能的充放电损耗与线路损耗,所造成的系统高运行成本问题,提出了一种以经济性为目标的分布式储能控制策略。该方法通过构建考虑线路损耗的电池储能运行成本模型,采用一致性算法进行迭代求解,以优化各储能单元间输出功率的经济分配。所提一致性控制策略仅需与相邻节点进行信息交互,无需装置中央控制器,通信拓扑灵活简单,可靠性高。在实时数字仿真仪RTDS中搭建了4个自治微电网形成的微电网群模型,利用不同场景下仿真结果验证了所提控制策略的有效性和经济性。
Aiming at the problem of high operating cost caused by the charging/discharging loss of distributed battery energy storage and the transmission loss, this paper proposes a distributed energy storage control strategy concerning the economic purpose in the microgrid cluster. In this method, the operating cost model of the battery energy storage system is constructed with the transmission losses. This operating cost model obtain the solution with the consensus algorithm in order to optimize the proper power allocation between the battery energy storage systems. The proposed strategy utilizes a distributed controller to exchange information between the neighboring agents, which obtains fast response, flexible communication network and high robustness. An microgrid cluster model is built with four autonomous microgrids in the real-time digital simulator RTDS. The effectiveness and economics of the proposed control strategy were verified under the different simulation scenarios.
作者
张步云
王晋宁
梁定康
韩肖清
ZHANG Buyun;WANG Jinning;LIANG Dingkang;HAN Xiaoqing(Shanxi Key Lab of Power System Operation and Control(Taiyuan University of Technology),Taiyuan 030024,Shanxi Province,China)
出处
《电网技术》
EI
CSCD
北大核心
2020年第5期1705-1713,共9页
Power System Technology
基金
国家自然科学基金项目(51777132)。
关键词
电池储能
经济控制
修正增量成本
一致性算法
battery storage
economic control
incremental cost
consensus algorithm
作者简介
张步云(1995),女,硕士研究生,研究方向为电力系统运行与控制,E-mail:573523494@qq.com;通信作者:韩肖清(1964),女,教授,博士生导师,研究方向为电力系统运行与控制、新能源与微电网运行等,E-mail:hanxiaoqing@tyut.edu.cn。
