110kV扩大内桥接线的电压切换回路分析  

Analysis of Voltage Switching Circuit for 110 kV Enlarging Internal Bridge Connection

作　　者：产焰萍 叶东华 韩伟聪 林毅斌 吴梓荣 CHAN Yanping;YE Doughua;HAN Weicong;LIN Yibin;WU Zirong(Zhangzhou Power Supply Company of State Grid,Zhangzhou 363000,China)

机构地区：[1]国网漳州供电公司,福建漳州363000

出　　处：《电器与能效管理技术》2019年第8期67-70,共4页Electrical & Energy Management Technology

摘　　要：针对110 kV扩大内桥的接线方式,电压切换回路对二次系统的安全性、稳定性、可靠性至关重要。基于扩大内桥接线的电压切换回路还未形成标准,大多数切换方案均无法与一次运行方式达到完全匹配,依据一次系统不同的运行方式,分析了现有典型方案的缺陷,并提出了一种改进的电压切换方案。结果表明,所提方案能够自适应不同的运行方式,实现一次、二次系统运行的全匹配,保障电力系统供电的稳定性与持续性。Voltage switching circuit is very important to the safety,stability and reliability of secondary' system for the connection of 110kV extended inner bridge. So far, voltage switching circuit of expanded inter-bridge connections has not formed a standard, most of the switching schemes can not match the primary operation mode completely. Based on the different operation modes of primary system, this paper analyzed the defects of existing typical schemes,and proposed an improved voltage switching scheme. The results show that the scheme can adapt to different operation modes, realize the full matching of primary and secondary systems, and ensure the stability and sustainability of power supply.

关 键 词：110 kV 扩大内桥接线方式 电压切换 二次系统 全匹配 

分 类 号：TM712[电气工程—电力系统及自动化]