云广直流阀冷系统跳闸逻辑防误动改进  

Improvement on Anti-misoperation of Trip Logic in Valve Cooling System of Yunnan-Guangdong DC Line

作　　者：朱旭东[1] 张家兴[1] 

机构地区：[1]中国南方电网超高压输电公司昆明局,昆明650217

出　　处：《云南电力技术》2016年第6期74-77,共4页Yunnan Electric Power

摘　　要：以云广直流工程为例,研究、分析直流工阀冷系统流量跳闸保护逻辑的设计策略,并针对保护策略存在的设计隐患提出三种改进措施,以期优化阀冷系统流量跳闸保护逻辑,减少因阀冷系统单一元件故障导致的直流闭锁,提高直流系统的运行稳定性。This paper takes the Yunnan-Guangdong DC Project for example, to research and analysis the design strategy for the lfow trip protection logic of the valve cooling system. Due to the design faulty in the lfow trip protection strategy, three improvements to optimize the logic are supplied in this paper, in order to reduce the DC blocking accident by single component fault and to improve the operation stability of DC system.

关 键 词：阀冷系统 跳闸逻辑 改进 

分 类 号：TM721.1[电气工程—电力系统及自动化]