主动配电网-充换电站群-智慧社区群分层优化调度策略  

Hierarchical Optimal Scheduling Strategy for Active Power Distribution Network,Charging and Switching Station Cluster and Smart Community Cluster

作　　者：林湘宁[1,2] 王伟名 随权 翁汉琍[1] 刘胜福 谭云 LIN Xiangning;WANG Weiming;SUI Quan;WENG Hanli;LIU Shengfu;TAN Yun(College of Electrical Engineering&New Energy,China Three Gorges University,Yichang,Hubei 443002,China;State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University of Science and Technology,Wuhan,Hubei 430074,China;College of Electrical and Information Engineering,Zhengzhou University,Zhengzhou,Henan 450001,China)

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002 [2]强电磁工程与新技术国家重点实验室(华中科技大学),湖北武汉430074 [3]郑州大学电气与信息工程学院,河南郑州450001

出　　处：《广东电力》2024年第10期25-37,共13页Guangdong Electric Power

基　　金：国家自然科学基金企业创新发展联合基金项目(U22B20106)。

摘　　要：为解决配电网、社区、充换电站3个利益主体之间难以保障能量最优交换和信息安全问题,提出一种主动配电网充换电站群智慧社区群的分层优化调度策略。首先,结合用户侧的储能需求和电动汽车充换电站的运行优化需求,在满足配电网经济运行的前提下建立电动汽车充换电站、配电网和社区共同参与的共享储能模式,上层为主动配电网运行模型,下层为社区和充换电站运行模型;其次,考虑各储能充换电站之间的交通流、能量流的时空特性,利用卡车对各电动汽车充换电站间的电池进行灵活调度,建立基于移动式储能车的电池时空共享模型;然后,为解决多主体(即充换电站、配电网、社区)参与的调度框架难以实现总体最优的问题,引入交替方向乘子法(alternating direction method of multipliers,ADMM)设计了社区充换电站配电网的3层能量共享模型;最后使用MATLAB对模型仿真编码求解。仿真结果表明:所提出的策略能够保障共享储能系统中各个主体隐私的安全性和用能的经济性,使能量共享形式更加多样化;可提高储能电池的使用效率和用能经济性,系统总成本降低了18%。In order to solve the problem of the difficulty in guaranteeing the optimality of energy exchange and the privacy of information exchange among the three interested parties,namely the distribution network,the community and the charging and switching station,this paper proposes a hierarchical optimal scheduling strategy for the active power distribution network,the charging and switching station cluster and the smart community cluster.Firstly,combining the energy storage demand on the user side and the operation optimization demand of electric vehicle supply equipment(EVSE),a shared energy storage model involving EVSE,the distribution grid and the community is established under the satisfaction of the economic operation of the distribution grid.The upper layer is the active distribution network operation model and the lower layer is the community and the charging and switching station operation model.Secondly,considering the spatio-temporal characteristics of traffic flow and energy flow between various energy storage and exchange stations,a battery spatio-temporal sharing model based on mobile energy storage vehicles is established by using trucks to flexibly dispatch batteries between various electric vehicle exchange stations.And then,in order to solve the problem that it is difficult to achieve the overall optimality of the scheduling framework with the participation of multiple subjects(such as the switching station,the distribution network,and the community),the alternating direction method of multipliers(ADMM)is introduced to design a three-layer energy sharing model of community-charging and switching station-distribution network.Finally,the model simulation coding is solved by MATLAB.Simulation results show that this strategy proposed can guarantee the security of privacy and the economy of energy use of each subject in the shared energy storage system,diversify forms of energy sharing,and improve the efficiency and energy economy of energy storage batteries.The total system cost is reduced by 18 percent.

关 键 词：共享储能 分布式优化 交替方向乘子 电池转移 充换电站 移动储能 

分 类 号：TM73[电气工程—电力系统及自动化] TM727