摘要
交流电气化铁路牵引供电系统具有可再生、分布广、能耗高、规律强、波动大等特点,每年消耗大量的电能。近年来能源互联网在电力系统领域的研究不断升温,高速铁路牵引供电系统能耗问题受到广泛关注。目前高速铁路列车制动均采用再生制动的方式,将制动能量通过单相四象限变流器反馈到牵引网,反馈到牵引网上的制动能量部分被相邻列车使用,大部分能量以反向电流的形式返回到牵引网上级电网中,而不能被利用,造成能量的浪费。为有效回收电气化铁路电动车组产生的大量再生制动电能,同时兼顾改善牵引供电系统电能质量的目的,设计了一种高速铁路制动能量回收系统。在列车制动时将过多的再生制动能量吸收到超级电容中,并在列车牵引时将超级电容中储存的电能回馈到牵引网供给列车牵引所需。
The AC traction power supply system of electrified railway is characterized by regeneration,wide distribution,high energy consumption,strong regularity and great fluctuation and it consumes a great amount of electric energy every year.In recent years,with the continuous progress of studies on Energy Internet in the field of power systems,the energy consumption of traction power supply system for high-speed railway has attracted extensive attention.At present,all the high-speed trains adopt the regenerative braking mode.The braking energy is fed back to the traction network through a single-phase four-quadrant converter,and a portion of the braking energy fed back to the traction network is used by adjacent trains.Most of the energy is returned to the superior power grid of the traction network in the form of reverse current and can’t be utilized,resulting in energy waste.To effectively recover the great amount of regenerative braking power produced by EMUs running on electrified railways and simultaneously improve the power quality of the traction power supply system,a regenerative braking energy recovery system for high-speed railway has been designed.When the train brakes,the excessive regenerative braking energy is absorbed into the super capacitor,and when the train need traction,the electric energy stored in the super capacitor is fed back to the traction network to supply the train traction.
作者
贾腾飞
王昆
杨阳
刘陆洲
包智宇
JIA Tengfei;WANG Kun;YANG Yang;LIU Luzhou;BAO Zhiyu(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd.,Qingdao 266031,China)
出处
《铁道车辆》
2024年第5期90-94,134,共6页
Rolling Stock
基金
国家重点研发计划项目(2021YFB2601500)。
关键词
高速铁路
再生制动
能量回收
电能质量
储能系统
high-speed railway
regenerative braking
energy recovery
power quality
energy storage system
