地面吸收系统在地铁列车再生制动试验中的应用

Ground Absorption System Application of Regeneration Braking Test in Subway Train

地铁列车在工厂试验线进行再生电制动试验时所产生的能量若不能及时被其它用电设备或车辆所消耗,将导致线网网压过高造成再生制动试验失败;针对地铁列车再生制动能量特点,采用电阻耗能型地面集中吸收系统,通过在线实时跟踪、检测、逻辑运算判定和控制,达到自动判定识别列车再生制动工况,同时具有数据处理、数据传输及监控系统,实现再生制动能量与吸收功率大小同步的自动控制,现车试验持续吸收功率达1 600kW,维持了线网电压稳定,确保再生制动试验顺利进行。

The regenerative braking energy will increase the trolley voltage too high to halt if the energy can＇t be absorbed by other equipments or metro cars when the metro is running test at factory. The system, which could absorb the energy by resistors that are concentrated at test room, is adopted on account of the characteristic of metro regenerative braking, It has the function of identifying the state of regenerative braking by real-time auto-track online, detecting, logically operation and decision-making and control. The data processing, communication and monitor are also adopted to control the efficiency of regenerative braking, The continual absorbed power at the trial vehicle is 1 600 kW, maintaine the stability of trolley voltage and insure the commission of the metro to be continued.