上海交通大学学报

上海交通大学学报 ›› 2019, Vol. 53 ›› Issue (Sup.1): 7-11.doi: 10.16183/j.cnki.jsjtu.2019.S1.002

• 学报（中文） • 上一篇    下一篇

堆外核测系统常见噪声干扰分析与抑制

何玉鹏1，姜静1，孙勇2，徐世豪1，郑国敏1，牟叶威1   

  1. 1. 中国核动力研究设计院 核反应堆系统设计技术重点实验室， 成都 610213; 2. 山东核电有限公司， 山东 烟台 265116
  • 发布日期:2020-04-08
  • 通讯作者: 何玉鹏(1988-)，男，甘肃省武威市人，工程师，现主要从事核电厂安全级DCS系统设计相关工作. 电话（Tel.）：028-85904524;E-mail:he_dcs@126.com.

Noise Analysis and Suppression for Excore Nuclear Instrumentation System

HE Yupeng 1,JIANG Jing 1,SUN Yong 2,XU Shihao 1,ZHENG Guomin 1,MOU Yewei 1   

  1. 1. Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610213, China; 2. Shandong Nuclear Power Company Ltd., Yantai 265116, Shandong, China
  • Published:2020-04-08

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摘要： 堆外核测系统是一种重要的反应堆功率监视手段，但由于其信号强度较弱且传输路径长，在调试与运行阶段深受噪声干扰问题困扰.核测系统的噪声其产生的原因多种多样，但相关的研究较少，给排除和解决工作带来了较大的困难.在AP1000堆外核测系统的调试过程中噪声问题较为突出，排查和处置手段具有典型性.以工程调试经验为基础，归纳出堆外核测系统常见的噪声来源，总结出通用的故障定位与抑制方法，最后提出了后续机组堆外核测系统维护的建议.

关键词: 核测系统；电磁兼容性；中子通量测量；分布式控制系统

Abstract: The excore nuclear instrumentation system (NIS) is an important means of reactor power monitoring. However, during the commission and operation phases, it is deeply troubled by noise interference problems due to the weak signal and long-distance transmission. For the NIS noises, there are various reasons but few related studies, which brings great difficulties for troubleshooting and solving work. During the commissioning process of the AP1000 excore NIS, the noise problem is more prominent, and the means of investigation and disposal are typical. Based on the experience in engineering and commissioning, the common noise sources of NIS are concluded, and the general fault location and suppression methods are summarized. Finally, the maintenance recommendations for the excore NIS of subsequent units are proposed.

Key words: nuclear instrumentation system (NIS); electromagnetic compatibility (EMC); neutron flux measurement; distributed control system (DCS)

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