摘要
为解决多馈入直流系统连续闭锁的问题,国家电网有限公司于2020年提出了可控换相换流器(CLCC)方案,该方案能够从根本上消除换相失败带来的长期威胁.以葛洲坝—南桥直流输电改造工程为例,从阀塔安装流程、安装要点分析、风险控制3方面,详细阐述了新型可控换相换流器的安装详情,可为今后同类工程提供借鉴.
In order to solve the problem of continuous locking of multi-feed DC systems,State Grid Co.,Ltd.proposed the controllable commutation converter(CLCC)scheme in 2020,which can fundamentally eliminate the long-term threat caused by commutation failure.Take Gezhouba-Nanqiao DC transmission transformation project as an example,the installation details of the new controllable commutator are described in detail from three as-pects:valve tower installation process,installation key points analysis and risk control,which can provide refer-ence for similar projects in thefuture.
作者
冷超
LENG Chao(State Grid Shanghai Extra High Voltage Company,SMEPC,Shanghai 200063,China)
出处
《电力与能源》
2023年第5期514-518,共5页
Power & Energy
关键词
可控换相
直流系统
换流器
风险控制
controllable commutation
DC system
converter
risk control
