摘要
地铁能馈系统可以将地铁制动时的能量回收到电网,极大节约电能。然而地铁能馈系统试验过程中缺少地铁频繁启动、制动的试验环境,文中设计了一套背靠背的再生电能回馈试验系统,S1逆变器模拟地铁自动的启动、制动,S2逆变器检测满足解锁或待机条件自动进入回馈或者待机状态。试验结果表明该试验系统在模拟地铁制动过程时快速解锁,同时稳定直流电压,在模拟地铁启动过程时快速闭锁进入待机状态,为地铁能馈系统现场挂网运行提供了试验支撑。
The energy feedback system can be used to recycle the subway braking power,can greatly save energy. But in theexperiment process of the energy feedback system ,the subway starting and braking environment is lacked. This paper designs arenewable energy feedback experimental system consisting of two back to back inverters ,and S1 simulates subway frequentstarting and braking ,S2 detects unblock or blocked conditions,automatically enter the feedback or standby state. The testresults show that the test system quickly unlocks during simulation of the braking process of the subway,stabilizes the DCvoltage at the same time,and quickly locks into the standby state during the simulation of the subway startup process,providing experimental support for the onsite operation of the subway energy feeding system.
作者
刘洪德
王宇
桑静波
杜海源
LIU Hongde;WANG Yu;SANG Jingbo;DU Haiyuan(NR Electric Co.,Ltd.,Nanjing 211102,China;Shijiazhuang Metro,Shijiazhuang 050000,China)
出处
《电力工程技术》
2018年第3期151-154,共4页
Electric Power Engineering Technology
关键词
能馈
逆变器
模拟地铁环境
renewable energy
simulated subway environment
