单相电能表在线检测与用户识别装置设计  

Design of single-phase electric energy meter online detection and user identification device

作　　者：罗昭通 陈凯伦 陈琼[1] 邱达铨 LUO Zhao-tong;CHEN Kai-lun;CHEN Qiong;QIU Da-quan(College of Information Engineering,Nanchang Aeronautics University,Nanchang 330063,China)

机构地区：[1]南昌航空大学信息工程学院,江西南昌330063

出　　处：《电子设计工程》2020年第19期138-141,147,共5页Electronic Design Engineering

摘　　要：电能表作为最常用的电能计量仪表,针对其计量的准确度和用户错接等问题设计了一种基于STM32的电能表在线检测与用户识别装置。装置对电网中的信号进行非同步采样,通过加窗插值FFT算法和电能累计法计算得出电参数以及电能误差;同时产生脉冲电流并通过电力载波传输来实现用户识别技术。使装置具有电参数测量、电能校验和用户识别三大功能,并配有WIFI通信模块,通过手机移动通信端操控与显示。最终测试结果表明:测量精度优于0.2级达到常用电能表的精度要求,且可以进行现场用户识别。The electric energy meter is the most commonly used electrical energy measure meters,for its measurement accuracy and user error line problems,design an online detection and user identification device based on STM32.The device by using non-synchronous sampling of signals in the power grid,then calculate electrical parameters and electrical energy error by using window interpolation algorithm and power accumulation method;and produce pulse current and transmitted over a power carrier to realize user identification technology.The device has electric parameter measurement,electrical energy calibration and user identification three functions,and equipped with WIFI communication module,which is controlled and displayed by mobile communication terminals such as mobile phones.The results of the final test show:measurement accuracy is better than 0.2%,it can meet the precision requirement of common electric energy meters and has user identification function.

关 键 词：STM32 电参数测量 电能校验 用户识别 

分 类 号：TM933[电气工程—电力电子与电力传动]