地铁线路储能装置与牵引装置联合优化配置方法  

Optimization method for allocations of energy storage systems and tractions for metro systems

作　　者：刘安邦 陈曦[1] 赵千川[1] 李博睿 LIU Anbang;CHEN Xi;ZHAO Qianchuan;LI Borui(Beijing National Research Center for Information Science and Technology,Center for Intelligent and Networked Systems(CFINS),Department of Automation,Tsinghua University,Beijing 100084,China;National Innovation Center of High Speed Train,Qingdao 266000,China)

机构地区：[1]清华大学自动化系,智能与网络化系统研究中心,北京信息科学与技术国家研究中心,北京100084 [2]中国国家高速列车青岛技术创新中心,青岛266000

出　　处：《清华大学学报（自然科学版）》2023年第9期1408-1414,共7页Journal of Tsinghua University(Science and Technology)

基　　金：国家重点研发计划项目(2022YFB4300502);国家高速列车技术创新中心研发项目(CX/KJ2020-006)。

摘　　要：在城市轨道交通系统中,列车牵引用电的费用在总运营费用中占比较高。在直流供电系统中接入储能装置(例如超级电容)吸收利用列车的再生制动能量,能够减少牵引用电的开销。储能装置和牵引装置的配置方案(位置与容量)会显著影响能量的吸收与利用效率。为了在有限储能与牵引资源约束下最大化再生制动能量的吸收利用效率,该文提出一种地铁线路储能装置与牵引装置的联合优化配置方法,将优化配置问题建模为仿真优化问题,开发了基于序优化的问题求解方法以获得问题足够好的解。在青岛地铁某线路上的测试结果显示:相比于依经验配置,优化配置方案可以减少6.1%的牵引能耗。该方法不仅能有效配置储能牵引资源,还能应用于解决地铁线路中的其他复杂优化问题。[Objective]Urban metro systems are the most important public transport system in many countries.These systems are associated with high speed,large capacity,and punctuality.However,traction energy costs account for a high proportion of the total operating cost.Thus,energy storage systems(ESSs),such as supercapacitors,have been recently introduced to collect and utilize the renewable energy generated by trains.Specifically,renewable energy is generated when a train brakes,and this energy can be collected using an ESS.The collected energy can later be released and used to start a train.Thus,this approach reduces the energy consumed by the entire system.The generated renewable energy and the energy used for starting a train are different in different stations.Therefore,the allocations(i.e.,positions and capacities)of the ESSs and the traction substations can significantly affect the efficiency of energy collection and utilization.Hence,it is essential to optimize such allocations,but this process is difficult due to the complicated features of the problem.Most of the existing studies have considered either ESSs or traction substations in their optimization model and have not considered joint optimization.In addition,these studies have used rule-based methods or metaheuristics as solution methodologies which cannot quantified the qualities of the solutions obtained.[Methods]In this paper,the allocations of the ESSs and the traction substations are jointly optimized.We first model the devices in the power supply network as ideal components and then build a simulation model that can provide the current and the voltage at each position of the network.Based on the simulation model,we develop a simulation optimization problem for the energy consumption of the line,with the upper limits of voltage fluctuation being considered as constraints.Due to the complexity of the simulation optimization model,evaluating the objective function once is computationally expensive.Thus,we develop a solution method based on ordinal optimiza

关 键 词：城市轨道交通 储能装置和牵引装置优化配置 基于仿真的优化模型 序优化 

分 类 号：U29-39[交通运输工程—交通运输规划与管理]