特高压换流站避雷器在线监测异常分析
姚言超，徐攀腾，周登波，李双杰
（中国南方电网超高压输电公司广州局，广东 广州 510663）
摘 要：由于特高压换流站特殊的配置，相比变电站，在避雷器在线监测设计方面有许多不同。以某换流站为例，对换流站内的几种典型避雷器在线监测回路进行了介绍，同时针对运行过程中，电磁干扰引起避雷器告警信号误发，避雷器、计数器和传感器接线错误等，对避雷器在线监测装置暴露的一些问题进行了分析，为直流输电系统的运行、维护及直流输电工程的设计实施提供了参考。
关键词：换流站；避雷器；在线监测；传感器
中图分类号：TM862 文献标识码：A 文章编号：1007-3175(2018)05-0064-03
Abnormal Analysis of Online Monitoring of Arrester in UHVDC Converter Station
YAO Yan-chao, XU Pan-teng, ZHOU Deng-bo, LI Shuang-jie
（EHV Transmission Companies Guangzhou Office of China Southern Power Grid, Guangzhou 510663, China）
Abstract: Due to the special configuration of the UHVDC converter station, there are many differences in the design of the arrester online monitoring compared to the substation. Taking certain converter station for example, this paper introduced several typical arrester online monitoring circuits in converter stations, in the meantime, aiming at the arrester warning signal sending in error and wiring errors of arrester, counter and sensor etc caused by electromagnetic interference in the process of operation, this paper analyzed some problems of arrester online monitoring devices exposed during operation, which provides references for operation, maintenance of direct current transmission system and its transmission projects design implementation.
Key words: converter station; arrester; on-line monitoring; sensor
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