基于STM32的高精度电能测量系统设计  

Design of high⁃precision electric energy measurement system based on STM32

作　　者：郑争兵[1] 韩团军[1] 王桂宝 ZHENG Zhengbing;HAN Tuanjun;WANG Guibao(School of Physics and Telecommunication Engineering,Shaanxi University of Technology,Hanzhong 723000,China)

机构地区：[1]陕西理工大学物理与电信工程学院,陕西汉中723000

出　　处：《现代电子技术》2021年第24期29-33,共5页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(61401262);陕西省教育厅基金项目(19JK0175);陕西理工大学科研基金项目(SLGKY2013)。

摘　　要：针对当前国内电量计量装置的高成本、低精度及功能单一等缺陷,文中设计一种基于STM32的高精度电能测量系统,利用STM32微控制器的外设功能驱动传感器实现电能的数据检测与处理。该系统基于RS 485总线,通过ModBus协议采集温度、湿度、油温的环境参数和三相电压电流、电能、功率因数、频率等电力参数。系统采用ATT7022E进行三相电的电压、电流、功率等参数的测量,实现了电量信号采样,开关量的输入与输出设计,WiFi远程数据传输通信以及上位机显示等功能。实践应用检测表明,该系统设计运行稳定可靠,实用性强,测量精度很高,满足工业需求和家用标准,具有一定的实用性和推广价值。In allusion to the shortcomings of high cost,low accuracy and single function of current electricity metering devices in China,a high⁃precision electric energy measurement system based on STM32 is designed.The peripheral function⁃driven sensor of the STM32 microcontroller is used to realize the data detection and processing of electrical energy.The environmental parameters of temperature,humidity and oil temperature and the electric power parameters of three⁃phase voltage and current,electrical energy,power factor and frequency are collected by thesystem on the basis of RS 485 bus and according to the ModBus protocol.In the system,the ATT7022E is used to measure the voltage,current,power and other parameters of three⁃phase electricity,so as to realize the functions of power signal sampling,input and output design of switching value,WiFi remote data transmission communication and upper computer display.The detection results in the practical application show that the designed system has stable and reliable operation,strong practicability,high measurement accuracy,can meet industrial needs and household standards,and has a certain practicability and popularization value.

关 键 词：电能测量 STM32 数据检测 参数采集 参数测量 远程传输 

分 类 号：TN949.67-34[电子电信—信号与信息处理] S275.6[电子电信—信息与通信工程]