Research of Metrological Aspects of Apparent Power Measurement

Apparent power is an important power quality parameter. The method discussed in the article is very popular in practice for measuring RMS and, accordingly, apparent power. Low measurement error is achieved by using a number of techniques: initial phase adjusting or samples number adjusting to satisf...

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Bibliographic Details
Main Authors: Podobuyev, Sergey A., Potanin, Konstantin Y., Bulekova, Polina D., Serov, Andrey N.
Format: Conference Proceeding
Language:English
Subjects:
apparent power
averaging of squared samples
Current measurement
measurement error
Measurement uncertainty
Phase measurement
Power measurement
root mean square value
simulation modeling
Software packages
Time-frequency analysis
Voltage measurement
zero-crossing technique
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Summary:Apparent power is an important power quality parameter. The method discussed in the article is very popular in practice for measuring RMS and, accordingly, apparent power. Low measurement error is achieved by using a number of techniques: initial phase adjusting or samples number adjusting to satisfy the condition of multiplicity of the signal period and the total evaluation period. The main disadvantage is associated with a fairly long evaluation time. The paper proposes an approach that makes it possible to reduce the measurement time by half compared to those used in practice while maintaining high metrological characteristics. The obtained analytical expressions allows to estimate the final error in measuring the apparent power by the method under consideration. An additional analysis of the influencing quantities (observation time, sampling frequency and other) on the error of measuring of the apparent power was carried out.
ISSN:2831-7262
DOI:10.1109/REEPE60449.2024.10479686