基于可编程量子电压的量测应用及误差分析  

Measurement Application and Error Analysis Based on Programmable Quantum Voltage

作　　者：周峰 殷小东 刁赢龙 李冬[2] 段梅梅 聂琪 ZHOU Feng;YIN Xiaodong;DIAO Yinglong;LI Dong;DUAN Meimei;NIE Qi(China Electric Power Research Institute,Wuhan 430074,China;School of Electrical and Electronic Engineering,Huazhong University of Science&Technology,Wuhan 430074,China;Marketing Service Center,State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 210019,China)

机构地区：[1]中国电力科学研究院有限公司,武汉430074 [2]华中科技大学电气与电子工程学院,武汉430074 [3]国网江苏省电力有限公司营销服务中心,南京210019

出　　处：《高电压技术》2023年第1期440-447,共8页High Voltage Engineering

基　　金：国家电网公司科技项目(5700-202218217A-1-1-ZN)。

摘　　要：为提高量子电压精密测量技术在电力系统的适用性,开展了基于可编程量子电压的量测应用及误差研究,首先,研究了基于可编程约瑟夫森量子电压的量子标准A/D方案,理论推导了量子标准A/D的误差模型,仿真分析了量子标准A/D的参数优化设计原则;然后,提出自适应量子差分采样控制方法,基于离散傅立叶变换(discrete Fourier transform,DFT)推导了实现最优差分采样的量子电压幅值和相位理论计算式;最后,提出基于可编程约瑟夫森量子电压的电子式互感器校验仪溯源方法,并开展了仿真及硬件试验验证。试验结果表明:量子标准A/D测量的不确定度达到10-6量级,自适应差分采样控制方法能够快速实现量子电压幅值和相位的精准控制,该文提出的校验仪溯源方法的测量不确定度水平相比传统溯源方法提升了5倍。研究成果可为电力系统的量子化量测应用及溯源提供参考。In order to improve the applicability of the quantum voltage precision measurement technology in the field of power system measurement,the measurement application and error research based on programmable quantum voltage were carried out in this paper.Firstly,the quantum standard A/D scheme based on programmable Josephson quantum voltage was studied,the error model of quantum standard A/D was theoretically derived,and the parameter optimization design principle of quantum standard A/D was simulated and analyzed.Then,an adaptive quantum differential sampling control method was proposed,and the quantum voltage amplitude and phase theory calculation formula for optimal differential sampling was derived based on discrete Fourier transform(DFT).Finally,an electronic transformer calibrator traceability method based on programmable Josephson quantum voltage was proposed,and simulation and hardware tests were carried out.The test results show that the quantum standard A/D measurement uncertainty reaches 10-6,and the adaptive differential sampling control method can quickly realize the precise control of quantum voltage amplitude and phase,and the measurement uncertainty level of the electronic transformer calibrator traceability method proposed in this paper is 5 times higher than that of the traditional traceability method.The research of this paper can provide a reference for the quantization measurement application and traceability of power system.

关 键 词：量子电压 量子标准A/D 离散傅立叶变换 差分采样 误差分析 电子式互感器校验仪 

分 类 号：TM45[电气工程—电器] TM933.2