CAJ | 학술논문

核电厂压水堆超温保护定值ΔT 主要功能为防止发生偏离泡核沸腾，实现燃料包壳保护。本文描述核电厂ΔT 定值信号波动大的故障，并通过对超温保护定值各个因变量的敏感度分析和仿真，对干扰源和被干扰对象进行定位。同时对波动现象及其原因采用排除分析法，确定电缆布局的设计缺陷为故障原因。之后给出了解决方案，并通过现场工程实施进行了验证，证明本方法的有效性和可行性。
핵전엄압수퇴초온보호정치ΔT 주요공능위방지발생편리포핵비등，실현연료포각보호。본문묘술핵전엄ΔT 정치신호파동대적고장，병통과대초온보호정치각개인변량적민감도분석화방진，대간우원화피간우대상진행정위。동시대파동현상급기원인채용배제분석법，학정전람포국적설계결함위고장원인。지후급출료해결방안，병통과현장공정실시진행료험증，증명본방법적유효성화가행성。
In nuclear power plant,the over-temperature protection value ΔT prevents nucleate from boiling and protects the fuel cladding. This paper focused on the fluctuation of ΔT , which is one of the common-mode failures. After sensitivity analysis and simulations of explanatory variables on over-temperature protection value,the sources and objects of the interference are located. And according to investigations on the fluctuation phenomena,the cable layout design defects are confirmed as the causes. The solutions were thus given and successfully verified by on-site implementation.