电力系统保护与控制2012，Vol.40Issue(5)：37-41,5.
自适应熄弧时刻的单相重合闸的研究
Study of single-phase reclosure with adaptive secondary arc extinction
摘要
Abstract
The conventional single-phase reclosure with fixed time delay cannot obtain a good performance because of uncertainty of the secondary arc extinction. To remedy such a situation, a novel single-phase reclosure scheme based adaptive secondary arc extinction is presented. When a single phase to ground fault takes place and relay protection initiates circuit breakers at both sides of the line to open a faulted phase, it is identified whether the secondary arc is extinction continually. If the secondary arc is extinct, breakers of fault phase are reclosed immediately. If the secondary arc is not extinct, it will keep on to be identified until the power system cannot bear the negative- and zero-sequence current in open-phase operation. The time of resuming the normal operation is reduced and the interconnected system transient stability is improved when the arc extinction is rapid while opportunity of closure is enhanced when the arc is lasted for a long time.关键词
电力系统/继电保护/输电线路/二次电弧/重合闸时间Key words
power system/ relaying protection/ transmission line/ secondary arc/ reclosing time delay分类
信息技术与安全科学引用本文复制引用
索南加乐,梁振锋,宋国兵..自适应熄弧时刻的单相重合闸的研究[J].电力系统保护与控制,2012,40(5):37-41,5.基金项目
国家自然科学基金项目(51037005,50877062) （51037005,50877062）
