智能电网
智能電網
지능전망
Smart Grid
2015年
4期
354-359
,共6页
艾绍贵%高峰%黄永宁%樊益平%李延军%王川
艾紹貴%高峰%黃永寧%樊益平%李延軍%王川
애소귀%고봉%황영저%번익평%리연군%왕천
智能快速开关%过零点快速预测%精确相控开断%零损耗%限流装置%330 kV短路试验
智能快速開關%過零點快速預測%精確相控開斷%零損耗%限流裝置%330 kV短路試驗
지능쾌속개관%과영점쾌속예측%정학상공개단%령손모%한류장치%330 kV단로시험
intelligent fast switch%zero crossing point fast prediction%accurate phase control breaking%no-loss%fault current limiter%330 kV short-circuit experiment
装设故障限流装置是解决日益严重电网短路电流超标问题的有效技术措施之一,利用智能快速开关技术、短路电流过零点快速预测及精确相控开断技术研制一套330 kV开关型零损耗电网故障限流装置。该装置采用模块化设计方法,使正常运行时损耗为零,且短路故障发生20 ms内,则可将80 kA及以下的短路电流限制在系统断路器的安全开断水平,从而实现任意深度的故障限流;装置成功用在330 kV线路上,通过带电、挂网运行和2次人工单相瞬时短路试验,验证装置满足安全性、有效性和可靠性的要求,同时结构简单合理,成本低廉且占地面积小。
裝設故障限流裝置是解決日益嚴重電網短路電流超標問題的有效技術措施之一,利用智能快速開關技術、短路電流過零點快速預測及精確相控開斷技術研製一套330 kV開關型零損耗電網故障限流裝置。該裝置採用模塊化設計方法,使正常運行時損耗為零,且短路故障髮生20 ms內,則可將80 kA及以下的短路電流限製在繫統斷路器的安全開斷水平,從而實現任意深度的故障限流;裝置成功用在330 kV線路上,通過帶電、掛網運行和2次人工單相瞬時短路試驗,驗證裝置滿足安全性、有效性和可靠性的要求,同時結構簡單閤理,成本低廉且佔地麵積小。
장설고장한류장치시해결일익엄중전망단로전류초표문제적유효기술조시지일,이용지능쾌속개관기술、단로전류과영점쾌속예측급정학상공개단기술연제일투330 kV개관형령손모전망고장한류장치。해장치채용모괴화설계방법,사정상운행시손모위령,차단로고장발생20 ms내,칙가장80 kA급이하적단로전류한제재계통단로기적안전개단수평,종이실현임의심도적고장한류;장치성공용재330 kV선로상,통과대전、괘망운행화2차인공단상순시단로시험,험증장치만족안전성、유효성화가고성적요구,동시결구간단합리,성본저렴차점지면적소。
Fault current Limiter is one of the efficient technological measures to solve the increasingly serious problem of excessive short-circuit current. A 330 kV switch-type no-loss fault current limiter based on intelligent fast switch technique and short-circuit current zero crossing point fast prediction and accurate phase control breaking technology is developed. Limiting short-circuit current of 80 kA and below to a safe breaking level within 20 ms is realized by the device based on modular design method, which realizes no-loss during normal operation and fault current limiting of any depth. The device is successfully used in the 330 kV line, and the safety, effectiveness and reliability of the device which has simple structure, low cost and small footprint are verified through field operation and two single-phase transient short-circuit experiment.