中国电机工程学报2018，Vol.38Issue(2)：484-496,13.DOI:10.13334/j.0258-8013.pcsee.162390
应对不可预知型短路电流超标的主动响应型站域保护策略
Strategy on the Active Response Substation Integrated Protection for Dealing With the Unpredictable Excessive Short-circuit Current
摘要
Abstract
Considering the risk of the unpredictable excessive short-circuit current,this paper put forward an active response substation integrated protection strategy.Superfast short-circuit current prediction using recursive least square algorithm was adopted to block protection so as to avoid the explosion caused by opening the circuit breaker forcibly.Then based on the state change of external system before and after the short-circuit fault,the equivalent of back system of incoming lines without fault was realized to estimate the effect of short-circuit current limiting measures and choose the optimal substation-area emergency tripping scheme.The simulation results verified the effectiveness of the proposed strategy.This paper provided a new protection-based solution to the problem of the unpredictable excessive short-circuit current.关键词
不可预知型短路电流超标/主动响应型站域集成保护策略/电流超快速预测/紧急跳闸方案优选Key words
unpredictable excessive short-circuit current/active response substation integrated protection strategy/superfast current prediction/emergency tripping scheme分类
信息技术与安全科学引用本文复制引用
魏繁荣,马啸,林湘宁,李正天,陈乐,邓科,Muhammad Shoaib Khalid,Owolabi Sunday Adio..应对不可预知型短路电流超标的主动响应型站域保护策略[J].中国电机工程学报,2018,38(2):484-496,13.基金项目
国家自然科学基金项目(51577077) （51577077）
国家电网公司科技项目(SGTYHT/15-JS-191).Project Supported by National Natural Science Foundation of China (51577077) （SGTYHT/15-JS-191）
Science and Technology Project of State Grid Corporation of China (SGTYHT/15-JS-191). （SGTYHT/15-JS-191）
