CAJ | 학술논문

核电厂数字化仪控系统的国产化对于我国的核电发展具有重要意义，针对其中对于模拟量采集模块的技术要求，自行研制出了一款采集精度达到万分之二AI模块，对于输入阻抗、元器件温度漂移、隔离等影响采集精度和稳定度的主要因素进行了原理性分析，阐述了模块的设计思路。长期运行试验结果显示模块的精度、温漂、共模和差模抑制比均达到设计要求。目前该模块已应用于核电厂现场。
핵전엄수자화의공계통적국산화대우아국적핵전발전구유중요의의，침대기중대우모의량채집모괴적기술요구，자행연제출료일관채집정도체도만분지이AI모괴，대우수입조항、원기건온도표이、격리등영향채집정도화은정도적주요인소진행료원이성분석，천술료모괴적설계사로。장기운행시험결과현시모괴적정도、온표、공모화차모억제비균체도설계요구。목전해모괴이응용우핵전엄현장。
The domestication of digital instrumentation and control( I&C) system in nuclear power plant has im-portant significance for the development of nuclear power in China.According to the technical requirement of an-alog data acquisition for the domestic digital I&C in nuclear power plant, an analog input module with 0.02%precision was developed.The principle analysis was given to the main factors affecting the precision and stabili-ty such as input rejection, temperature drift, isolation and etc., and the design of the module was presented. The results of long-term running test demonstrate that the precision, temperature drift, common mode and dif-ferential mode rejection ratio of the module have reached the design requirements.The module has been cur-rently used in the fields of nuclear power plants.