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

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1999年 / 48卷 / 02期

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

页码：422 / 426

页数：5