基于ATT7022EU的高精度三相电能计量仪的校表方法  

High Precision Three-Phase Energy Meter Calibration Based on ATT7022EU

作　　者：李莉华 徐亮 赵杰 裴风铖 曹烨 康秋霞 LI Lihua;XU Liang;ZHAO Jie;PEI Fengcheng;CAO Ye;KANG Qiuxia(Zhongtian Kuandai Technology Co.,Ltd.,Nantong 226400,China)

机构地区：[1]中天宽带技术有限公司,江苏南通226400

出　　处：《通信电源技术》2023年第2期1-3,共3页Telecom Power Technology

摘　　要：基于电能采集芯片ATT7022EU,设计了一款高精度电能计量装置,该装置采用意法半导体STM32F103作为控制器,通过读取ATT7022EU的寄存器,完成三相交流电的电压、电流、功率、功率因数以及谐波等参数的测量。ATT7022EU手动校准之后精度可以达到0.2 S,但ATT7022EU的校表一直是其应用的难点,关于ATT7022EU的电压、电流、电量的校表也鲜有论述。以ATT7022EU的电量校准为例,详细论述ATT7022EU的校表流程。Based on the power harvesting chip ATT7022EU,we designed a high precision power metering device.The device adopts STM32F103 as the controller and reads the registers of ATT7022EU to complete the measurement of voltage,current,power,power factor and harmonics parameters of three-phase AC power.The accuracy of the ATT7022EU can reach 0.2 S after manual calibration,but the calibration of the ATT7022EU has been the difficulty of its application,and there are few discussions on the calibration of the voltage and current and power of the ATT7022EU.In this paper,we take the power calibration of ATT7022EU as an example and discuss the calibration process of ATT7022EU in detail.

关 键 词：ATT7022EU 电表校表 RS485通信 

分 类 号：TM933.4[电气工程—电力电子与电力传动]