DocumentCode
1519615
Title
A new scheme for generating and measuring active, reactive, and apparent power at power frequencies with uncertainties of 2.5×10 -6
Author
Ramm, Günther ; Moser, Harald ; Braun, Andreas
Author_Institution
Phys. Tech. Bundesanstalt, Braunschweig, Germany
Volume
48
Issue
2
fYear
1999
fDate
4/1/1999 12:00:00 AM
Firstpage
422
Lastpage
426
Abstract
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 2.5×10 -6 (k=1)
Keywords
calibration; digital voltmeters; direct digital synthesis; discrete Fourier transforms; measurement uncertainty; power measurement; reactive power; waveform generators; DFT evaluation; SI traceability; active power; apparent power; complex voltage/current ratio; digital signal synthesis; generating method; measuring method; phase angle; power calibrators; power factor; precision power measurements; reactive power; single master clock; single sampling voltmeter; sinusoidal voltage generator; synchronizing errors reduction; uncertainty; Clocks; Discrete Fourier transforms; Frequency measurement; Power generation; Power measurement; Reactive power; Sampling methods; Switches; Voltage; Voltmeters;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.769616
Filename
769616
Link To Document