变电综合自动化系统防雷措施应用探讨

Lightning protection substation integrated automation system applications

变电站发电机组担负着安全发电、保证经济平稳运行的重任。热控系统在发电机组中是核心部分,因此更需要在稳定性上给予保障。目前从变电站的设计、运行等的情况来看,还有很多措施做得不到位,如电磁环境的恶劣没有得到有效改善等。一旦发生电磁耦合和地电位波动,如雷电等引起的信号异常、系统运行不稳定、参数显示不准、控制出现偏差、报警信号等误发等等,都会对设备和部件产生致命的影响,甚至造成跳闸事故的发生。随着变电站建设规模和运行任务的加大。保障设备可靠运行,做好防雷措施,已经成为目前变电站自动化系统运行需要解决的课题。本文结合实际案例,就变电站自动化系统防雷和抗干扰技术展开研究,期待为变电站良性可持续运行具有参考作用。

the substation generator unit is responsible for the safety of power generation and the smooth operation of the economy. Thermal control system is the core part of the generator set, so it is more necessary to guarantee the stability. At present,from the point of view of substation design, operation and so on, there are still many measures are not in place, such as the harsh electromagnetic environment has not been effectively improved. Once the occurrence of electromaguetic coupling and potential fluctuations, such as signal lightning caused by abnormal and unstable system operation and display parameters are not allowed, control deviation, false alarm signal and so on, will have a devastating effect on the equipment and components, and even cause tripping accidents. With the substation construction scale and operational tasks increased. To ensure the reliable operation of the equipment and to do well lightning protection measures have become the problems that need to be solved in the operation of the substation automation system. Based on actual cases, this paper studies the lightning protection and anti-jamming technology of substation automation system, and expects to have reference function for the benign and sustainable operation of substation.