摘要
将丙烯酰胺水凝胶材料应用于超级电容器,可以在电气化轨道交通中存储再生制动能量提升牵引网电压水平。在分析电气化轨道交通运行状态的基础上,提出一种遵循储能系统能量改善方法来调节牵引网充放电阈值电压。建立了包括列车、储能系统、牵引变电站在内的直流牵引电力系统的数学模型。在不同条件下,通过对牵引网电压和列车状态的实时监测,确定能量管理状态机,并利用实际线路数据进行仿真和主铁路轨道场实验,验证了所提管理策略的合理性和有效性。研究结果分析可知,能源管理状态机可以在非常理想的状态下运行,平均节能率高达21.7%,反映了所提出的能源管理策略的有效性和稳定性。
Applying acrylamide hydrogel material to supercapacitors can store regenerative braking energy in electrified rail transit to improve the voltage level of traction network.On the basis of analyzing the operation status of electrified rail transit,this article proposes a method to adjust the charging and discharging threshold voltage of the traction network by following the energy improvement method of the energy storage system.A mathematical model of the DC traction power system,including trains,energy storage systems,and traction substations,has been established.Under different conditions,the energy management state machine was determined by real-time monitoring of traction network voltage and train status.Simulation and main railway track field experiments were conducted using actual line data to verify the rationality and effectiveness of the proposed management strategy.The analysis of research results shows that the energy management state machine can operate in very ideal conditions,with an average energy saving rate of up to 21.7%,reflecting the effectiveness and stability of the proposed energy management strategy.
作者
李增华
LI Zenghua(Xinjiang Railway Survey and Design Institute Co.,Ltd.,Urumqi 830011,China)
出处
《粘接》
CAS
2023年第4期169-172,177,共5页
Adhesion
关键词
电气化
牵引网
电压
储能
electrification
traction network
voltage
energy storage
