ACTIVE POWER MEASUREMENT UNCERTAINTY BUDGET MODELLING IN CASE OF HARMONICALLY DISTORTED VOLTAGES AND CURRENTS

Kiril Demerdziev, Vladimir Dimchev
Abstract:
Harmonic distortion of electrical waveforms results in a need for instrumentation performance evaluation in non-sinusoidal conditions. This is especially challenging in case of power and/or energy measuring devices, because of their place in the regulated trade of electrical energy. The measurement uncertainty evaluation procedure commences with determination of influence factors, which are correlated to harmonic components’ magnitude and phase shift recording. For overall uncertainty budget modelling, a GUM based approach is implemented. The model validation and the uncertainty propagation, due to alteration of different signals’ parameters, is illustrated via real time measurements, conducted with high accuracy class measuring equipment.
Keywords:
high order harmonics; measurement uncertainty; reference standard
Download:
IMEKO-TC11-2022-19.pdf
DOI:
10.21014/tc11-2022.19
Event details
IMEKO TC:
TC11
Event name:
Joint IMEKO TC11 & TC24 hybrid conference
Title:

Measurement for a better life

Place:
Dubrovnik, CROATIA
Time:
16 October 2022 - 20 October 2022