地铁变电所综合自动化系统电磁防护

简单介绍了地铁变电所综合自动化系统构成,针对地铁变电所内电磁干扰带来的后果,从分析电磁干扰产生的原因和传输路径入手,对变电所综合自动化系统电磁兼容问题进行了初步讨论,阐述了综合自动化系统在硬件和软件方面的电磁防护措施,包括:屏蔽、一次和二次系统接地、隔离,以及数据输入输出的滤波处理等。实践证明这些措施对提高变电所综合自动化系统的抗电磁干扰能力有着重要意义。

Antijamming Electromagnetic Interference of Substation Automation System in Subway

The composing of substation integrated automation in the subway is introduced generally. Proceeding from analyzing electromagnetic interference source,transmission ways, this paper gives out a preliminary analysis on electromagnetic compatability,and puts forward some effective solutions which include hardware and software measures antijamming electromagnetic interference in substation integrated automation. The solutions mainly are shielding, grounding measure in primary and secondary system, isolation and filtering of data input and output. Practices prove that it is of central importance to improve the antijamming ability of substation automation system.