电子式互感器采集单元的芯片级抗扰试验及防护技术  

Chip Level Immunity Test for Electronic Transformer Acquisition Unit and Its Protection Technology

作　　者：赵明敏 杨志超 李谦 林珊珊 赵鹏 鞠勇 ZHAO Mingmin;YANG Zhichao;LI Qian;LIN Shanshan;ZHAO Peng;JU Yong(China Electric Power Research Institute Co.,Ltd.,Beijing 100192,China;State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources,North China Electric Power University,Beijing 102206,China)

机构地区：[1]中国电力科学研究院有限公司,北京100192 [2]新能源电力系统国家重点实验室(华北电力大学),北京102206

出　　处：《南方电网技术》2023年第3期107-114,共8页Southern Power System Technology

基　　金：中国电力科学研究院科技项目“智能设备ADC芯片电磁环境下失效机理和防护方法研究”(GY83-20-009);国家重点研发计划“国家质量基础的共性技术研究与应用专项”(2020YFF0218401)。

摘　　要：实测了二次设备面临的空间电磁场和暂态地电位提升水平。选取电子式互感器采集单元板卡常用的AD7656、AD7606和AD9288这3种型号模数(A/D)转换芯片,研制了可供这些芯片抗扰度测试用的模拟板卡。开展了静电放电和浪涌抗扰度测试,并判断了器件损伤的严重程度,总结了不同芯片的失效特征。在电路板上逐层添加到电磁兼容(electromagnetic compatibility,EMC)防护措施,测试获得了不同防护层级对各种类型干扰的抑制作用。The spatial electromagnetic field and transient ground potential rise level of the secondary equipment are measured.The AD7656,AD7606 and AD92883 analog-to-digital(A/D)converter chips commonly used in the electronic transformer acquisition unit boards are selected as the objects to study,and the analog boards for immunity test of these chips are developed.The electrostatic discharge and surge immunity tests are carried out,the severity degree of device damage is judged,and the failure characteristics of different chips are summarized.Electromagnetic compatibility(EMC)protection measures are added layer by layer on the circuit board,and the inhibition effect of different protection levels on various types of interference is obtained.

关 键 词：电子式互感器 电磁兼容 静电放电 浪涌 抗扰度测试 电磁防护 

分 类 号：TM451[电气工程—电器]