南方电网技术
南方電網技術
남방전망기술
SOUTHERN POWER SYSTEM TECHNOLOGY
2011年
4期
94-96
,共3页
广北甲、乙线%紧急停机%减功率策略%直流输电
廣北甲、乙線%緊急停機%減功率策略%直流輸電
엄북갑、을선%긴급정궤%감공솔책략%직류수전
Guangzhou-Beijiao Line Ⅰand Line Ⅱ%emergency switch off sequence（ESOF）%power-limited strategy%HVDC
在2010年天广直流控制保护系统改造过程中,为了满足天广直流的紧急停机以及减功率策略要求,提出了一种实现广北甲、乙线ESOF策略的二次回路设计方案。该方案能可靠地实现各种情况下开关事故跳闸后的跳闸发信;同时将三相不一致跳闸回路设计成独立于线路保护、充电保护、过流保护等跳闸回路,从而具有扩展空间。
在2010年天廣直流控製保護繫統改造過程中,為瞭滿足天廣直流的緊急停機以及減功率策略要求,提齣瞭一種實現廣北甲、乙線ESOF策略的二次迴路設計方案。該方案能可靠地實現各種情況下開關事故跳閘後的跳閘髮信;同時將三相不一緻跳閘迴路設計成獨立于線路保護、充電保護、過流保護等跳閘迴路,從而具有擴展空間。
재2010년천엄직류공제보호계통개조과정중,위료만족천엄직류적긴급정궤이급감공솔책략요구,제출료일충실현엄북갑、을선ESOF책략적이차회로설계방안。해방안능가고지실현각충정황하개관사고도갑후적도갑발신;동시장삼상불일치도갑회로설계성독립우선로보호、충전보호、과류보호등도갑회로,종이구유확전공간。
During the reconstruction of Tianshengqiao-Guangzhou DC control protection system in 2010,in order to meet the requirements of emergency switch off sequence and power-limited strategy,a design scheme of the secondary circuits is proposed to achieve the ESOF strategy in Guangzhou-Beijiao LineⅠand Line Ⅱ.The scheme can trustworthily realize the tripping information transmission when switch tripping incidents occured in various situations.In addition,the tripping circuit for three phase inconsistant protection is designed as a circuit isolated from the circuits such as that for line protection,charging protection,or overcurrent protection and so on,and thus this isolated circuit has expansion space.
