电力系统自动化2011，Vol.35Issue(12)：80-84,94,6.
限流器晶闸管阀过电流试验等效机理及方法
Equivalent Mechanism and Approach of Over-current Tests on Thyristors of Fault Current Limiters
摘要
Abstract
Thyristor is a main part of fault current limiter (FCL) which will endure bulk current stress during turn-on and conductive process, while existing high power electronics test equipment cannot satisfy the requirement of over-current test. Based on the analysis of thyristor operation condition, equivalent test parameter and method are proposed. According to power electronics equivalent test theory, the losing validity mechanism for thyristor is analyzed. Equivalent test indices are obtained through building over-current test equivalent math model. Referring to the breaker short circuit test method, the stepped test and synthesized test are designed. The stepped test is used to check current steep and current stress with LC oscillation and short-circuit current circuits while synthesized test is used to check current stress of thyristor by turn off and turn on test circuit for breakers. The stepped method is proposed to use through comparing analysis on two methods.关键词
晶闸管阀/过电流试验/等效理论/等效方法Key words
thyristors/ over-current tests/ equivalent mechanism/ equivalent approach引用本文复制引用
王华昕,汤广福,蓝元良,王华锋,栾宏洲,于海玉..限流器晶闸管阀过电流试验等效机理及方法[J].电力系统自动化,2011,35(12):80-84,94,6.基金项目
国家电网公司科技项目(SGKJ[2007]304). （SGKJ[2007]304）
