三相多功能谐波电能表的EMI分析与EMC设计
摘 要:针对电力系统需求,研制了一种具有RFID接口与GPRS通信模块的三相多功能谐波电能表,介绍了电能表的构成与工作原理,分析了电能表的空间电磁干扰、传导耦合干扰和公共阻抗耦合干扰,探讨了电能表的电磁干扰传输途径,提出了三相多功能谐波电能表的电磁兼容可靠性设计方案,论述了电能表开关电源电磁兼容、PCB布线、通信接口抗干扰、防静电设计、软件抗干扰设计等电能表的EMC设计方法,给出了电能表的EMC测试结果.试验和运行表明三相多功能谐波电能表设计具有良好的电磁兼容性.
关键词:三相多功能谐波电能表;电磁兼容;干扰源;静电放电;传输线长度
中图分类号:TP273 文献标识码:A
EMI Analysis and EMC Design of Threephase
Multifunctional Harmonic Energy Meter
TENG Zhaosheng1, LUO Zhikun1, TANG Qiu1, ZHOU Liangzhang2, LI Xiaoqing2
(1. College of Electrical and Information Engineering, Hunan Univ, Changsha, Hunan 410082, China;
2. Hangzhou Hexing Electrical Co; LTD, Hangzhou, Zhejiang 310011, China)
Abstract:According to power system requirements, a kind of threephase multifunctional harmonic energy meter with radio frequency identification (RFID) interface and general packet radio service (GPRS) communication module was developed. The structure and the working principle of the energy meter were described, and its space electromagnetic interference (EMI), conducted coupling interference, and common impedance coupling interference were analyzed. The EMI propagation paths of energy meter were discussed, and the reliability design scheme of energy meter was proposed. The electromagnetic compatibility (EMC) design method of energy meter such as EMC of switch power, PCB routing, communication interface antiinterference design, the antistatic design and software antiinterference design, were analyzed. The EMC test results of the energy meter were given. The experiment an...
== 试读已结束,如需继续阅读敬请充值会员 ==
|
本站文章均为原创投稿,仅供下载参考,付费用户可查看完整且有格式内容!
(费用标准:38元/2月,98元/2年,微信支付秒开通!) |
升级为会员即可查阅全文 。如需要查阅全文,请 免费注册 或 登录会员 |