计及多重交易耦合的省间交易通道可用输电能力优化方法  

Optimal Available Transfer Capacities for Inter-provincial Electricity Trading Channels Considering Multiple Trading Paths

作　　者：魏聪颖 徐箭[2] 汪旸 徐浩 廖思阳[2] WEI Congying;XU Jian;WANG Yang;XU Hao;LIAO Siyang(Central China Branch of State Grid Corporation of China,Wuhan 430077,Hubei Province,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,Hubei Province,China)

机构地区：[1]国家电网有限公司华中分部,湖北省武汉市430077 [2]武汉大学电气与自动化学院,湖北省武汉市430072

出　　处：《电网技术》2024年第9期3705-3712,I0055,I0056,共10页Power System Technology

基　　金：国家电网有限公司华中分部科技项目(52140023000J)。

摘　　要：省间电力交易模型的简化使得虚拟交易流和实际电力流不一致,在区域电网内存在安全运行风险。对此,提出一种考虑多重省间交易耦合及潮流阻塞的区域电网省间交易通道可用输电能力优化方法,在保证电网安全运行的前提下,最大化交易可行域空间,以发挥区域电网资源配置优势。首先,以虚拟交易网络和实际物理网络关联关系为基础,构建了省间电力交易的网络约束模型。其次,采用平面外拓方法搜索网络约束的可行域边界,从而将可用输电能力优化问题归结为可行域覆盖问题。然后,引入有向测度的概念定量刻画可行域的大小,并设计了以智能算法为外层框架、经典线性规划为内层主体的双层混合求解算法。最后,在实际场景中验证了所提方法的适用性和时效性。The simplification of the market model for inter-provincial electricity makes the virtual transaction flow inconsistent with the actual power flow,which leads to operation risks in the regional power grid.In this regard,this paper proposes an optimization method for the available transfer capacities of inter-provincial trading channels in regional power grids,where the couplings of multiple inter-provincial trading paths and the power flow congestion are both considered.On the premise of safe operation,the space of a feasible region for inter-provincial trading is maximized to give full play to the advantages of resource allocation in the regional power grid.First,the network constraints for inter-provincial electricity trading are constructed based on the relationship between the virtual trading network and the actual electricity network.Second,the vertex-oriented projection algorithm is used to find out the boundaries of the feasible region,and the calculation of the available transfer capacities is transformed into the optimal coverage problem of the feasible region.Then,the directed measure theory is introduced to describe the space size of the feasible region quantitatively,and a two-layer hybrid algorithm is designed,where the intelligent algorithm is used in the outer layer and the classic linear programming is used in the inner layer.Finally,the practicality and timeliness of the proposed method are verified in actual operating scenarios.

关 键 词：省间电力市场 可用输电能力 网络阻塞 可行域 测度论 

分 类 号：TM73[电气工程—电力系统及自动化]