云广特高压直流控制设备中保护功能分析  

Analysis on the Backup Protection Function in Yunguang UHVDC Control System

作　　者：徐攀腾[1] 张志朝[2] 

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

出　　处：《现代电力》2013年第1期13-16,共4页Modern Electric Power

摘　　要：控制系统可以准确监控直流系统的运行状况,为此直流控制系统一般都配置有尽可能少的保护功能作为直流系统的快速闭锁保护。由于不同特高压直流输电系统的特殊性,在控制系统中的保护功能及数量也不同。本文对云广特高压直流输电工程控制系统中的保护功能进行了详细分析,并通过一系列事故案例说明控制系统中保护功能设置的优劣,以及其是否能够有效保护特高压直流设备,确保特高压直流设备安全稳定运行。The control system can accurately monitor the operation status of DC system,so the protection function is generally set as little as possible to block the fast protection of HVDC system.Because of the different particularity of UHVDC transmission systems,the function and quantity of protection in control system are also different.In this paper,the protection functions in Yunnan-Guangdong UHVDC control system are analyzed in detail.Through a series of accident cases,the quality of the protection function in control system is illustrated,and whether UHVDC equipments can be protected effectively is also analyzed to guarantee their operation security and stability.

关 键 词：直流控制系统 基本控制策略 直流保护系统 特高压直流输电 保护功能 

分 类 号：TM723[电气工程—电力系统及自动化]