高精度交流电压有效值测量技术研究  

Research on High Precision AC Voltage RMS Measurement Technology

作　　者：杨春玲[1] 王金阳 温星曦 齐超[1] YANG Chun-ling;WANG Jin-yang;WEN Xing-xi;QI Chao(School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China;Beijing Orient Institute of Measurement and Test,Beijing 100089,China)

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨150001 [2]北京东方计量测试研究所,北京100089

出　　处：《仪表技术与传感器》2023年第5期70-75,83,共7页Instrument Technique and Sensor

基　　金：2020年度黑龙江省高等教育教学改革重点委托项目(SJGZ20200052,SJGZ20200048);2020年度哈尔滨工业大学教学发展基金项目(XSZ2020005);2020年教育部高等学校电工电子基础课程教学指导分委员会项目(E2129,E2125)。

摘　　要：为提高交流电压有效值的测量精度,对高精度交流电压有效值测量技术进行了研究,采用交流数字采样的方式,基于等效采样的积分算法与过零检测采样,通过基抖动误差抑制实现交流电压有效值测量不确定度为40 ppm的指标。通过实验测试验证,所开发的交流数字采样系统工作稳定可靠,可以实现高精度交流电压有效值的测量。In the field of high-precision instrument measurement and measurement system development,the accuracy of digital multimeter needs to be further improved.As one of the important functions of multimeter,the measurement accuracy of AC voltage RMS also needs to be further improved.The high-precision AC voltage RMS measurement technology was studied.By using AC digital sampling,the uncertainty of AC voltage RMS measurement is 40 ppm through the integration algorithm based on equivalent sampling and the sampling time base jitter error suppression based on zero-crossing detection.The experimental results show that the developed AC digital sampling system works stably and reliably,and can realize the measurement of high-precision AC voltage RMS.

关 键 词：交流电压有效值 数字采样 误差抑制 高精度 

分 类 号：TM933[电气工程—电力电子与电力传动]