输电网拓扑优化的MISOCP模型及邻域搜索加速求解方法  

Mixed-integer Second-order Cone Programming Model for Topology Optimization of Transmission Network and Accelerated Solution Method for Neighborhood Search

作　　者：李佩杰[1] 玉君连 孙志媛 LI Peijie;YU Junian;SUN Zhiyuan(Guangxi Key Laboratory of Power System Optimization and Energy Technology(Guangxi University),Nanning 530004,China;Electrical Power Research Institute of Guangxi Power Grid Co.,Ltd.,Nanning 530023,China)

机构地区：[1]广西电力系统最优化与节能技术重点实验室(广西大学),广西壮族自治区南宁市530004 [2]广西电网有限责任公司电力科学研究院,广西壮族自治区南宁市530023

出　　处：《电力系统自动化》2025年第3期170-177,共8页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(52267006);广西创新驱动发展专项(桂科AA19254034)资金资助项目。

摘　　要：电力系统中引发潮流过载等安全问题的场景日益增多,拓扑优化可通过网络拓扑转换来消除潮流过载问题,但其复杂的模型转换逻辑与大规模整数变量的引入,显著增加了建模的复杂度和求解的难度。为此,文中提出一种考虑主接线拓扑转换的输电网拓扑优化方法。首先,在通用变电站主接线拓扑转换模型的基础上,建立了混合整数二阶锥规划(MISOCP)的模型。该模型不仅可以考虑拓扑变换对有功潮流的影响,还可计及无功平衡和电压的约束,解决了以往基于直流潮流的拓扑优化模型消除有功过载时调控方式可能偏乐观甚至恶化电压指标的问题。此外,为高效求解所提模型,提出一种邻域搜索加速求解方法。最后,采用IEEE 14、IEEE 118和波兰2383节点系统进行仿真计算。结果表明,所提优化模型能够经济、有效地解决线路过载问题,所提求解方法能够提高所提模型的求解效率。The scenarios that cause safety problems,such as power flow overloads,in power systems are on the rise.Topology optimization can eliminate the problem of power flow overload by transforming the network topology.However,the complex model transformation logic and the introduction of large-scale integer variables significantly increase the complexity of modeling and the difficulty in solving.Therefore,this paper proposes a topology optimization method for the transmission network that considers the topology transformation of the main connection line.Firstly,based on the general transformation model for main connection topology of substations,a mixed-integer second-order cone programming(MISOCP)model is established.The model can not only consider the impact of topology transformation on active power flow,but also take into account the constraints of reactive power balance and voltage,solving the problem that previous topology optimization models based on DC power flow may have potentially optimistic scheduling modes or even deteriorated voltage indicators when eliminating the active power overload.Secondly,to solve the proposed model efficiently,an accelerated solution method for neighborhood search is proposed.Finally,simulation calculations are conducted on IEEE 14-bus,IEEE118-bus,and Polish 2383-bus systems.The results show that the proposed optimization model can solve the problem of line overload economically and effectively,and the proposed solving method can improve the solving efficiency of the proposed model.

关 键 词：拓扑转换 混合整数二阶锥规划 邻域搜索 拓扑优化 

分 类 号：TM7[电气工程—电力系统及自动化]