智能变电站继电保护二次回路在线监测与故障诊断技术
2021-01-11唐晓丽
唐晓丽

[摘 要]随着我国科学技术以及计算机技术和通信技术的飞速发展,大部分数据、信息等资源已经实现共享。利用这些新技术和新信息,变电站正逐渐变得更加智能化。与传统智能变电站相比,智能变电站的运行效率有了很大的提高。这就要求在电力系统的运行过程中切实有效的配备与之相对应的继电保护二次回路,以此来从根本上有效确保电力系统安全平稳的运行。不断增强在线监测与故障诊断技术的适用性和容错性,进一步提高在线监测与故障诊断的质量。
[关键词]智能变电站;继电保护;二次回路;监测;诊断
[中图分类号]TM63 [文献标志码]A [文章编号]2095–6487(2021)10–00–03
On Line Monitoring and Fault Diagnosis Technology of Relay
Protection Secondary Circuit in Intelligent Substation
Tang Xiao-li
[Abstract]With the rapid development of science and technology, computer technology and communication technology in China, most data, information and other resources have been shared. Using these new technologies and information, the substation is gradually becoming more intelligent. Compared with the traditional intelligent substation, the operation efficiency of intelligent substation has been greatly improved. This requires that the corresponding relay protection secondary circuit should be effectively equipped in the operation process of the power system, so as to fundamentally and effectively ensure the safe and stable operation of the power system. Continuously enhance the applicability and fault tolerance of on-line monitoring and fault diagnosis technology, and further improve the quality of on-line monitoring and fault diagnosis.
[Keywords]intelligent substation; relay protection; secondary circuit; monitor; diagnosis
1 電力系统继电保护二次回路概述
1.1 电力系统继电器二次保护电路的优点
高安全性。二次继电保护电路是保证电力系统安全运行的关键。在当今社会发展中,能源系统虽然得到了优化,但在某些方面仍然采用传统的保护技术,导致能源系统运行中存在诸多波动因素,影响系统质量。现在二次继电保护系统已经适应了时代发展的需要。通过不断地更新和优化,可以更好地识别和处理系统故障,减少危险事故,提高电力系统的安全性和功能性。
性能强。大多数二次继电保护电路有绝缘材料保护(图1)。这些绝缘材料具有很强的抗腐蚀性能,即使在外界环境中也不会发生较大的化学变化,从而提高了信号采集的效率,保证了电力系统的正常运行[1]。通过自动控制系统的应用,二次继电保护电路可以及时发现电力系统运行中出现的问题,并能快速分析缺陷并制定合理的解决方案,从而降低缺陷对电力系统运行的影响,并系统地提高能源系统运行的安全性和稳定性。……
