A new scheme for generating and measuring active, reactive, and apparent power at power frequencies with uncertainties of 2.5 x 10-6

被引:101
|
作者
Ramm, G [1 ]
Moser, H [1 ]
Braun, A [1 ]
机构
[1] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany
关键词
complex voltage current ratio; discrete Fourier transform; impedance; phase angle; precision power measurements (active; reactive; apparent); power factor;
D O I
10.1109/19.769616
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A new method for generating and measuring active, reactive, and apparent power at power frequencies has been devised. It makes use of digital signal synthesis and discrete Fourier transform (DFT) evaluation based on a single master clock. This results in a significant reduction of synchronizing errors and thus in an uncertainty of only 2.5 x 10(-6) (k = 1).
引用
收藏
页码:422 / 426
页数:5
相关论文
共 4 条
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    Ramm, G
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    [J]. 1998 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS DIGEST, 1998, : 283 - 284
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    [J]. 2008 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS DIGEST, 2008, : 196 - 197
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