城市轨道交通主变电站信号集中控制设备升级改造

Research on Upgrade and Transformation of Centralized Signal Control Equipment in Main Substation of Urban Rail Transit

[目的]上海轨道交通7号线站内信号设备目前已进入老化周期,直接影响到该线路供电系统的稳定性与可靠性。需在保证主变电站内信号集中控制设备功能不变的前提下,对该设备进行升级改造。[方法]以上海轨道交通7号线作为研究对象,对其主变电站内信号集中控制设备的功能进行了介绍。并在原有功能不受影响的前提下,提出硬件平台一致性和软件功能一致性的改造原则。从信号集中机柜、110 kV主变电站保护测控装置,以及综保设备串口信号等方面重点介绍了设备硬件的改造;对采用的以Unix系统为基础的新工程师工作站进行了介绍。对主变电站内信号集中控制设备进行了调试与功能验证。[结果及结论]调试与功能验证结果表明,在功能上新的信号集中控制设备与既有设备兼容,消除了原有设备老化导致的信号延迟、误报警等问题,满足改造需求。

[Objective]At present,the signal equipment in stations of Shanghai Metro Line 7 enters the aging cycle,which directly affects the stability and reliability of the power supply system of Line 7.It is necessary to upgrade the signal equipment on the premise of ensuring that the function of the centralized signal control equipment in the main substation remains the same.[Method]With Shanghai Metro Line 7 as the research object,the function of the centralized signal control equipment in the main substation is introduced.On the premise that the original functions are not affected,the transformation principle of hardware platform consistency and software functionality consistency is proposed.The hardware transformation of the equipment is introduced mainly from the aspects of centralized signal cabinet,protection and measurement device in 110 kV main substation,and serial port signal of comprehensive protection equipment.The new engineer workstation based on Unix system is introduced.The centralized signal control equipment in the main substation is debugged and its functions are verified.[Result&Conclusion]The debugging results and function verification show that the new centralized signal control equipment is functionally compatible with the existing equipment,the signal delay and false alarm caused by the aging of the original equipment are eliminated,and the transformation requirements are met.