核电仪控设备的辐射抗扰度试验  

Radiation Immunity Test of Nuclear Power Instrumentation and Control Equipment

作　　者：李文伟 LI Wenwei(China Nuclear Engineering Consulting Co.,Ltd.,Beijing 100032,China)

机构地区：[1]中核工程咨询有限公司,北京100032

出　　处：《自动化应用》2024年第10期122-124,127,共4页Automation Application

摘　　要：旨在分析核电站仪控设备在电磁干扰环境下的辐射抗扰度,确保设备在潜在辐射环境中保持高度的可靠性与稳定性。针对小电流仪器(如热电偶和压力传感器),建立了简化的干扰模型,并从理论上评估了线缆中可能产生的最大感应电动势。结果表明,无保护的小信号设备易受电磁干扰,产生的感应电流可能超过试验中设定的阈值。因此,建议实施保护策略(如去耦钳安装、增加线缆电感、使用屏蔽、接地线缆等),以降低感应电流和电动势的干扰。该研究结果为核电站仪控设备的设计和运行提供了重要的参考值,确保了设备在复杂电磁环境中的可靠性。Intended to analyze the radiation immunity of nuclear power plant instrumentation and control equipment in electromagnetic interference environments,ensuring high reliability and stability of the equipment in potential radiation environments.A simplified interference model was established for small current instruments such as thermocouples and pressure sensors,and the maximum induced electromotive force that may be generated in cables was theoretically evaluated.The results indicate that unprotected small signal equipment is susceptible to electromagnetic interference,and the induced current generated may exceed the threshold set in the experiment.Therefore,it is recommended to implement protection strategies(such as installing decoupling clamps,increasing cable inductance,using shielding,grounding cables,etc.)to reduce interference from induced currents and electromotive forces.The research results provide important reference values for the design and operation of instrumentation and control equipment in nuclear power plants,ensuring the reliability of the equipment in complex electromagnetic environments.

关 键 词：核电 仪控设备 辐射 抗扰度 

分 类 号：TM623[电气工程—电力系统及自动化] TN03[电子电信—物理电子学]