高电压技术2011，Vol.37Issue(7)：1811-1817,7.
限流器晶闸管阀自触发保护动作电压阈值设计
Design on Thyristor Self-trigger Protection Action Voltage Threshold of Series Resonance Fault Current Limiter
摘要
Abstract
Failure of limiter controller is the worst fault state and can only rely on thyristor trigger protection which is called break over diode （BOD）. Consequently, to improve the reliability of series resonant fault current limiter （SRFCL） bypass circuit and to reduce MOV of resonant capacitor energy consumption, we introduce a method of designing the threshold of self-trigger thyristor action voltage, in which BOD operation sequences are designed, and threshold factors are analyzed from the point of view of action time and surge arresters energy consumption. BOD action voltage threshold determines thyristor valve voltage protection level and trigger time. If voltage threshold is set low, BOD will complete with protection criterion. If voltage threshold is set high, the arrest energy consumption level will increase. In the background of East China Power Grid FCL demonstration project, current limiter simulation model is established. Moreover, the rule of voltage threshold effecting on arrester energy is summarized by simulation. Voltage threshold design specification is proposed and will benefit to engineering design.关键词
串联谐振型故障限流器（SRFCL）/自触发保护/击穿二极管触发晶闸管/动作时序/避雷器能耗/阈值设计Key words
series resonant fault current limiter （ SRFCL ）/self-trigger protection/break over diode （BOD）/operation sequence/arrest energy/threshold design分类
信息技术与安全科学引用本文复制引用
王华昕,蓝元良,汤广福..限流器晶闸管阀自触发保护动作电压阈值设计[J].高电压技术,2011,37(7):1811-1817,7.基金项目
国家电网公司科技项目（SGKJ[2007]304）. （）
