Paper Info
Title
A numerical approach to the evaluation of uncertainty in nonconventional measurements on power systems
Abstract
The application of the rules endorsed by the ISO Guide to the expression of uncertainty in measurement (GUM) can turn into a difficult task when quantities that characterize the operation of modern power systems are measured by means of DSP-based instruments. A numerical approach to easily tackle this task is proposed in this paper, as an alternative to the uncertainty evaluation based on the analytical solution of the uncertainty propagation law, as prescribed by the GUM. The validity of the numerical approach, which is based on a Monte-Carlo procedure, is first proved in the case of the spectral analysis of a periodic signal, which is the first step for many nonconventional measurements. Then the evaluation of the accuracy of a method for the measurement of the harmonic losses in a power transformer supplying nonsinusoidal load currents is dealt with as an application example.
Year
DOI
Venue
2002
10.1109/TIM.2002.803290
Instrumentation and Measurement, IEEE Transactions  
Keywords
DocType
Volume
Monte Carlo methods,analogue-digital conversion,digital instrumentation,electric current measurement,loss measurement,measurement uncertainty,power system measurement,spectral analysis,virtual instrumentation,voltage measurement,DSP-based instruments,ISO guide,Monte Carlo methods,digital measurements,harmonic losses,indirect measurement,nonconventional measurements,nonsinusoidal load currents,numerical approach,periodic signal,power systems,power transformer losses,spectral analysis,traceability,uncertainty evaluation,uncertainty propagation law,virtual instruments
Journal
51
Issue
ISSN
Citations 
4
0018-9456
11
PageRank 
References 
Authors
3.54
5
4
Name
Order
Citations
PageRank
Locci, N.1113.54
Carlo Muscas234269.55
L. Peretto33625.40
Renato Sasdelli44530.69