SIGNAL SWING NORM AS A MEASURE OF ELECTRICAL ENERGY QUALITY

A. Bien
Abstract:
Stability of root mean square (rms) voltage is one of more important parameters of electrical energy quality. To evaluate the stability - rather unstability of rms voltage- we use a flickermeter which determine the flickering severity factor PST. Flickermeter is such an instrument in which reaction of electrical power is modelled by source of light onto human psychophysical features. The obtained signal is statistically analysed. As a result we obtain value PST which is a measure of electrical energy quality. After statistical treatment of the signal we obtain the value of parameter PST which is a measure of electrical energy quality.
Functional of signal swing instead of statistical treatment is suggested to measure unstability of model signal. Functional of signal swing can be used for determined signals e.g. test signals, changes appearing in isolated cases (unit number of appearances in a certain time interval) and signals with statistical properties.The feature enables better interpretation of measuring results. The results obtained by a signal swing functional have properties similar to PST.
Keywords:
flickermeter, swing norm
Download:
IMEKO-WC-2000-TC4-P113.pdf
DOI:
-
Event details
Event name:
XVI IMEKO World Congress
Title:

Measurement - Supports Science - Improves Technology - Protects Environment ... and Provides Employment - Now and in the Future

Place:
Vienna, AUSTRIA
Time:
25 September 2000 - 28 September 2000