智能电能表电磁场监测研究
Research on Electromagnetic Field Monitoring of Smart Energy Meter
祝毛宁 1张蓬鹤 1王聪 1巩永稳 2秦译为1
作者信息
- 1. 中国电力科学研究院,北京 100192
- 2. 北京智芯微电子科技有限公司,北京 100192
- 折叠
摘要
为了实时检测智能电能表所处的电磁环境、达到智能电能表在受到大功率电磁攻击时能够对攻击事件进行取证固证的目标,设计了一款电磁场监测模块.该模块由包络检波器、迟滞比较器和电压稳压器构成.包络检波器用于将高频电磁波转换为直流电压输出.迟滞比较器用于更好地控制信号.电压稳压器用于为包络检波器和迟滞比较器提供稳定的输入电压.模块测试结果表明,模块输出电压随着外界电磁场发射强度的增大而增大.模块嵌入到智能电能表中,可以评估智能电能表所处环境的电磁场强度.该研究可为智能电能表防外界强电磁场窃电提供理论基础和技术支撑.
Abstract
To detect the electromagnetic environment in which the smart energy meter is in real time,and to achieve the goal that the smart energy meter can forensically solidify the attack event when it is subjected to a high-power electromagnetic attack,an electromagnetic field monitoring module is designed.The module consists of envelope detector,hysteresis comparator and voltage regulator.The envelope detector is used to convert high-frequency electromagnetic wave into direct current voltage output.The hysteresis comparator is used to better control the signal.The voltage regulator is used to provide a stable input voltage to the envelope detector and hysteresis comparator.The module test results show that the output voltage of the module increases with the increase of the external electromagnetic field emission intensity.The module is embedded into the smart energy meter to evaluate the electromagnetic field strength of the environment that the smart energy meter is exposed to.This research can provide theoretical basis and technical support for smart energy meters to prevent electricity theft by strong external electromagnetic fields.
关键词
智能电能表/电磁场/电磁场监测/电磁感应/电容性耦合/电感性耦合/电磁干扰/窃电Key words
Smart energy meter/Electromagnetic field/Electromagnetic field monitoring/Electromagnetic induction/Capacitive coupling/Inductive coupling/Electromagnetic interference/Electricity theft引用本文复制引用
出版年
2024
NETL
NSTL
万方数据