Title :
Uncertainty contribution in power measurements due to non-harmonic components
Author :
Parvis, M. ; Vallan, A.
Author_Institution :
Dipt. di Elettronica, Politecnico di Torino, Italy
Abstract :
Digital-wattmeter uncertainty specifications are typically provided for sinusoidal signals only. In some cases specifications are provided also in the presence of harmonic-components, but the presence of spurious non-harmonic components is never taken into account. This paper describes a simple algorithm, which is able to estimate the uncertainty increase that is related to such components
Keywords :
digital instrumentation; fast Fourier transforms; measurement uncertainty; power measurement; signal sampling; spectral analysis; wattmeters; FFT; digital wattmeters; nonharmonic components; power measurements; signal sampling; simple algorithm; spectral analysis wattmeters; spurious components; uncertainty contribution; uncertainty specifications; Fourier transforms; Frequency; Phase locked loops; Power measurement; Power system harmonics; Pulse width modulation inverters; Signal sampling; Uncertainty; Voltage; Wattmeters;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-5890-2
DOI :
10.1109/IMTC.2000.846808
