Measurement of Active Power by Time Domain Digital Signal Processing
Result description
The paper compares DSP time domain algorithms of one-phase active power measurement by non-coherent sampling that overcome some frequency-domain algorithms in active power estimation of non-sinusoidal signals. Measurement bias, uncertainty and sampling time necessary for required accuracy is compared for various data windows by simulations and measurements. Both monofrequency and multifrequency signals are dealt with. Analytical formulae for active power bias for rectangular and general cosine windows and for standard uncertainty of active power measurement are presented. A simple method of multiplexing delay correction for power measurement using multiplexing DAQ boards is described. The information from the paper can be used also for energy consumption and three-phase power measurement.
Keywords
digital signal processing algorithms in measurementtime domain active power measurementmeasurement uncertaintywindowing
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Measurement of Active Power by Time Domain Digital Signal Processing
Original language description
The paper compares DSP time domain algorithms of one-phase active power measurement by non-coherent sampling that overcome some frequency-domain algorithms in active power estimation of non-sinusoidal signals. Measurement bias, uncertainty and sampling time necessary for required accuracy is compared for various data windows by simulations and measurements. Both monofrequency and multifrequency signals are dealt with. Analytical formulae for active power bias for rectangular and general cosine windows and for standard uncertainty of active power measurement are presented. A simple method of multiplexing delay correction for power measurement using multiplexing DAQ boards is described. The information from the paper can be used also for energy consumption and three-phase power measurement.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JE - Non-nuclear power engineering, energy consumption and utilization
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Measurement
ISSN
0263-2241
e-ISSN
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Volume of the periodical
42
Issue of the periodical within the volume
8
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
14
Pages from-to
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UT code for WoS article
000270125100003
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
JE - Non-nuclear power engineering, energy consumption and utilization
Year of implementation
2009