摘要
对±800 k V特高压直流输电工程的保护闭锁策略进行了详细阐述。首先,对特高压直流工程故障隔离一般措施进行了介绍,特别地对旁通对投入的方式及作用进行了分析。其次,对特高压直流闭锁的4种类型进行了阐述,详细分析了4种闭锁的应用范畴及动作特性。最后,分析了直流两侧换流站有无通讯情况下,系统的闭锁策略。±800 k V宾金直流调试录波数据验证了动作策略的正确性。
The protection block strategy for ± 800 k V UHVDC transmission system is introduced in detail. Firstly,the routine measures to isolate the fault in UHVDC system are introduced,and especially the function and the strategy of the by-pass pair are analyzed. Secondly,the application domains and the characteristics of four block strategies in UHVDC transmission system are summarized. Finally,the influence with and without communication between two converter stations on the block strategy is analyzed. The recording data of commissioning for ± 800 k V Bin-Jin UHVDC transmission system verifies the validity of the proposed strategy.
出处
《四川电力技术》
2014年第6期73-77,共5页
Sichuan Electric Power Technology
关键词
特高压直流输电
保护闭锁
换流站
通讯
UHVDC transmission system
protection block
converter station
communication
