关于过程控制系统EFT抗扰度测试的探讨  

Discussion on EFT Immunity Test of Process Control System

作　　者：邹海明 郑书祥 李波波 刘斐 ZOU Haiming;ZHENG Shuxiang;LI Bobo;LIU Fei(Zhejiang SUPCON Technology Co.,Ltd.,Hangzhou 310053,China)

机构地区：[1]浙江中控技术股份有限公司,浙江杭州310053

出　　处：《仪表技术》2023年第5期78-82,共5页Instrumentation Technology

摘　　要：基于国家标准GB/T 17626.4—2018《电磁兼容试验和测量技术电快速瞬变脉冲群抗扰度试验》对试验的规范化要求,阐述了长期、持续地确保过程控制系统EFT抗扰度测试结果一致性的关键技术点。实践表明,除了严格按照标准规定进行试验布置和执行试验程序以外,试验前的设备确认、辅助设备的去耦保护、试验结果的精细化判定、试验的不确定度分析、试验比对等试验技术的应用等,也是最大程度确保EFT试验结果持续稳定、可信的重要措施。Based on the standardized requirements of the national standard Electromagnetic Compatibility Testing and Measurement Techniques Electrical Fast Transient Burst Immunity Test(GB/T 17626.4-2018),the key technical points to ensure the consistency of EFT immunity test results of process control systems continuously are described.The practice shows that,in addition to the test layout and test procedures in strict accordance with the standards,applications of the equivalent test technologies such as the equipment confirmation before the test,the decoupling protection of auxil-iary equipment,the refined judgment of the test results,the uncertainty analysis of the test and test comparison are also important measures to ensure the continuous stability and credibility of the EFT test results.

关 键 词：过程控制系统 电快速瞬变脉冲群 抗扰度 

分 类 号：TP242.6[自动化与计算机技术—检测技术与自动化装置]