一种基于双层纳什博弈的微电网双层电能交易策略  

Two-layer Power Trading Strategy for Microgrid Based on Two-layer Nash Game

作　　者：朱瑞金 吴军 崔世庭[4] ZHU Ruijin;WU Jun;CUI Shiting(Research Center of Civil,Hydraulic and Power Engineering of Tibet,Tibet Agricultural and Animal Husbandry University,Linzhi 860000,China;College of Electrical Engineering,Tibet Agricultural and Animal Husbandry University,Linzhi 860000,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;College of Water Conservancy Project&Civil Engineering,Tibet Agricultural and Animal Husbandry University,Linzhi 860000,China)

机构地区：[1]西藏农牧学院西藏土木水利电力工程技术研究中心,林芝860000 [2]西藏农牧学院电气工程学院,林芝860000 [3]武汉大学电气与自动化学院,武汉430072 [4]西藏农牧学院水利土木工程学院,林芝860000

出　　处：《电力系统及其自动化学报》2023年第12期100-109,共10页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金资助项目(52167015);西藏土木水利电力工程技术研究中心开放研究基金资助项目(XZA202305CHP2006B);西藏农牧学院研究生教育创新计划资助项目(YJS2023-48)。

摘　　要：随着微电网大规模接入配电网,“一配网多微电网互联”的树形结构给微电网之间的电能交易带来诸多挑战。考虑到微电网之间和微电网群之间都可建立电能交易关系,基于双层纳什博弈建立微电网双层电能交易;其次,考虑微电网对电能交易的贡献不同,基于电能共享贡献指数构建不对称利润分配模型;最后,在多种情景下进行仿真,结果表明本文所提策略实现了运营成本最小化。通过纳什议价实现微电网群交互成本最小化,所提利润分配模型相较于对等利润分配更加公平。With the large-scale access of microgrids(MGs)to distribution network,the tree structure of“one distribution network interconnected with multiple MGs”brings many challenges to the power trading between MGs.Considering that the power trading relationship can be established between MGs and between microgrid clusters(MGCs),the MG two-layer power trading is established based on the two-layer Nash game.Then,considering the different contributions of MGs to power trading,an asymmetric profit allocation model is constructed based on the power sharing contribution index.Finally,simulations are carried out under various scenarios,and results show that the proposed strategy minimizes the operating cost,the MGC interaction cost is minimized through Nash bargaining,and the established profit allocation model is fairer than the reciprocal profit allocation scheme.

关 键 词：双层电能交易 多微电网群 微电网 双层纳什谈判 不对称利润分配 

分 类 号：TM9[电气工程—电力电子与电力传动]