云广特高压直流工程中的分接开关状态监视逻辑  

Analysis of On-load Tap Changer Control and Monitoring Logics in ±800 kV Yunnan-Guangdong UHVDC Transmission Project

作　　者：余荣兴[1] 张志朝[2] 刘茂涛[1] 

机构地区：[1]中国南方电网超高压输电公司广州局,广州510405 [2]中国南方电网超高压输电公司,广州510620

出　　处：《南方电网技术》2012年第5期18-21,共4页Southern Power System Technology

摘　　要：分接开关控制是直流输电系统控制的重要部分,云广特高压直流工程中分接开关采用有载调压方式,为确保分接开关的长期安全、可靠运行,云广特高压工程中分接开关采用了多种状态监视逻辑来实现其状态的有效监视,介绍了云广直流工程中分接开关的各类状态监视逻辑,梳理了分接开关状态监视信号的传输回路,结合运行维护经验对当前逻辑进行了风险辨识,并提出了优化改进措施。Tap changer plays an importent role in control system of HVDC transmission project. In order to ensure the safety and reliable operation of tap changers, Yunnan-Guangdong takes many monitoring logics,some using various types of monitoring relays or sensors,some take place in group control system in combination with current system state.This paper deeply analyzes the on load tap changer （OLTC） monitoring logics and operation risks in Yunnan Guangdong UHVDC Transmission Project,subtotals the possible influence on control system,put forwsrd the optimization and improvement measures of OLTC monitoring logics,combining with practical operation and maintenance experience.

关 键 词：云广特高压直流工程 分接开关 监视逻辑 风险 

分 类 号：TM721[电气工程—电力系统及自动化]