Modeling and Capacity Configuration Optimization of CRH5 EMU On-Board Energy Storage System  

作　　者：Mingxing Tian Weiyuan Zhang Zhaoxu Su 

机构地区：[1]School of Automation and Electrical Engineering,Lanzhou Jiaotong University,Lanzhou,730070,China

出　　处：《Energy Engineering》2025年第1期307-329,共23页能源工程（英文）

基　　金：funded by the National Natural Science Foundation of China(52167013);the Key Program of Natural Science Foundation of Gansu Province(24JRRA225);Natural Science Foundation of Gansu Province(23JRRA891).

摘　　要：In the context of the“dual carbon”goals,to address issues such as high energy consumption,high costs,and low power quality in the rapid development of electrified railways,this study focused on the China Railways High-Speed 5 Electric Multiple Unit and proposed a mathematical model and capacity optimization method for an onboard energy storage system using lithium batteries and supercapacitors as storage media.Firstly,considering the electrical characteristics,weight,and volume of the storage media,a mathematical model of the energy storage system was established.Secondly,to tackle problems related to energy consumption and power quality,an energy management strategy was proposed that comprehensively considers peak shaving and valley filling and power quality by controlling the charge/discharge thresholds of the storage system.Thecapacity optimization adopted a bilevel programming model,with the series/parallel number of storage modules as variables,considering constraints imposed by the Direct Current to Direct Current converter,train load,and space.An improved Particle Swarm Optimization algorithm and linear programming solver were used to solve specific cases.The results show that the proposed onboard energy storage system can effectively achieve energy savings,reduce consumption,and improve power qualitywhile meeting the load and space limitations of the train.

关 键 词：Electrified railway regenerative braking bi-level programming on-board energy storage power quality capacity configuration 

分 类 号：TK02[动力工程及工程热物理]