基于灵活运行域的配-微电网协同优化调度方法  

Cooperative optimal scheduling method of distribution network and microgrids based on flexible operation region

作　　者：卫志农[1] 刘鹏[1] 陈胜[1] 赵景涛[2,3] 郑舒[2,3] 张晓燕[2,3] WEI Zhinong;LIU Peng;CHEN Sheng;ZHAO Jingtao;ZHENG Shu;ZHANG Xiaoyan(College of Electrical and Power Engineering,Hohai University,Nanjing 211100,China;State Grid Electric Power Research Institute,Nanjing 211000,China;NARI Technology Co.,Ltd.,Nanjing 211106,China)

机构地区：[1]河海大学电气与动力工程学院,江苏南京211100 [2]国网电力科学研究院,江苏南京211000 [3]国电南瑞科技股份有限公司,江苏南京211106

出　　处：《电力自动化设备》2024年第12期213-220,共8页Electric Power Automation Equipment

基　　金：国家电网有限公司科技项目(5400-202340552A-3-2-ZN)。

摘　　要：为了提高配电网与微电网间的协调能力,提出了基于灵活运行域的配-微电网协同优化调度方法。构建微电网灵活运行域(MGFOR)模型,准确刻画海量灵活性资源接入下微电网的灵活调节能力;采用基于MGFOR的凸包拟合表达式对微电网的灵活调节能力进行描述,并将其纳入配电网的优化决策过程中,以获取配-微电网协同过程中各微电网的基准运行点;微电网基于配电网优化决策给定的基准运行点进行灵活性分解,在保证配-微电网协同运行经济性和数据隐私的前提下获取各灵活性资源的具体调度策略。以修改的IEEE 33节点测试系统为算例进行仿真分析,验证所提方法能够准确刻画微电网的灵活调节能力,所提基于MGFOR的分解协同策略能够有效支撑配-微电网灵活经济调度。In order to improve the coordination ability between distribution network and microgrids,a cooperative optimal scheduling method of distribution network and microgrids based on flexible operation region is proposed.The model of microgrid flexible operation region(MGFOR) is constructed to accurately portray the flexible regulation capability of a microgrid under the access of massive flexibility resources.The flexible regulation capability of the microgrid is described by using the convex hull expression based on MGFOR,which is incorporated into the optimization decision process of distribution network to obtain the base operation point of each microgrid in the cooperation process of distribution network and microgrids.The microgrid performs flexibility disaggregation based on the corresponding base operation point given by the optimization decision of the distribution network,and obtain the specific scheduling strategy of each flexibility resource under the premise of ensuring the economy and data privacy in the cooperative operation progress of distribution network and microgrids.Taking the modified IEEE 33-bus test system as the example,the simulation analysis shows that the proposed method can accurately portray the flexible regulation capability of the microgrid,and the proposed decomposition and cooperation strategy based on MGFOR can effectively support the flexible and economic scheduling of distribution network and microgrids.

关 键 词：配-微电网协同 灵活运行域 凸包理论 经济调度 灵活性聚合-分解 

分 类 号：TM73[电气工程—电力系统及自动化]