消弧系统晶闸管自触发一次阻尼方式隐患分析  

Hidden Danger Analysis for One Time Damping Model of Thyristor Self-triggering for Arc Suppressing Coil

作　　者：余剑峰 

机构地区：[1]五凌电力有限公司,湖南长沙410001

出　　处：《水电能源科学》2009年第3期209-211,共3页Water Resources and Power

摘　　要：针对预调式消弧线圈抑制系统串联谐振过电压接入阻尼电阻存在的安全隐患,在分析晶闸管自触发一次阻尼方式原理基础上指出了产生隐患的原因。结果表明,由于晶闸管耐压水平低、各档位启动电压不一致、"虚幻接地"等,严重危害了配电网安全运行,为此提出了一种新型二次阻尼控制方式,以供借鉴。Aiming at the hidden safety danger of pre-set are-suppression coil system with resonant damping resistance for suppressing resonant overvoltage,the cause of hidden dangers is analy2ed. The results show that the security of distribution network operation is seriously damaged because of lower resistance voltage of thyristor, inconsistency of ＂start＂vottage and ＂false ground＇and so on. A new type of quadratic damping control is proposed.

关 键 词：配电网 谐振接地方式 中性点接地 消弧线圈 阻尼电阻 晶闸管 

分 类 号：TM475[电气工程—电器] TM711