| 用于三相标准电能表的高精度数据采集系统 |
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| 引用本文： | 申 莉,毕 伟,甘依依,陆 俊,彭 匀,王现伟. 用于三相标准电能表的高精度数据采集系统[J]. 电测与仪表, 2015, 52(18) |
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| 作者姓名： | 申 莉 毕 伟 甘依依 陆 俊 彭 匀 王现伟 |
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| 作者单位： | 国网湖北省电力公司电力科学研究院,国网湖北省电力公司电力科学研究院,国网湖北省电力公司电力科学研究院,上海雷锐精密仪器有限公司,上海雷锐精密仪器有限公司,北京航空航天大学仪器科学与光电工程学院 |
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| 摘 要： | 用电负荷的大范围波动导致传统电能表计量误差很大。本文设计了一种应用于0.05级三相标准电能表的数据采集系统，该系统由高精度数据采集电路和FPGA搭建而成。高精度数据采集电路由信号调理电路和24位A/D转换器组成，采样率高达52.73kHz，满足了系统采集精度的要求。采集系统的精度通过采集直流电压信号进行测试，误差小于0.02%。
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| 关 键 词： | A/D采集；FPGA；三相标准电能表；信号调理 |
| 收稿时间： | 2015-01-06 |
| 修稿时间： | 2015-04-29 |
High Precision Data Acquisition System for Three-Phase Standard Energy Meter |
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| SHEN Li,BI Wei,GAN Yi-yi,LU Jun,PENG Yun and WANG Xianwei. High Precision Data Acquisition System for Three-Phase Standard Energy Meter[J]. Electrical Measurement & Instrumentation, 2015, 52(18) |
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| Authors: | SHEN Li BI Wei GAN Yi-yi LU Jun PENG Yun WANG Xianwei |
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| Affiliation: | State Grid Hubei Electric Power Research Institute,Wuhan,State Grid Hubei Electric Power Research Institute,Wuhan,State Grid Hubei Electric Power Research Institute,Wuhan,Radium-Ray Shanghai Precision Instrument Co,Ltd,Shanghai,Radium-Ray Shanghai Precision Instrument Co,Ltd,Shanghai,School of Instrumentation Science and Opto-electronics Engineering, |
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| Abstract: | Wide range fluctuation load leads the traditional electric energy meter have large measurement uncertainty. This paper designed a high precision data acquisition system for three-phase standard energy meter. The system is consisted by FPGA and high precision data acquisition circuit. The high precision data acquisition circuit is combination by signal modulate circuit and 24 bit A/D converter in which the sampling rate is up to 52.73 kHz, these meet the requirement of acquisition precision. The system is test by acquire DC voltage, and the error is less than 0.02%. |
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| Keywords: | AD sampling FPGA three-phase standard energy meter signal modulate |
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