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Method of Reducing Error in Calculations of Active Power from Signal Samples

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Abstract

The paper presents the results of investigations into several methods of calculating the active power value from current and voltage signal samples. The accuracy attainable for nonsinusoidal signals whose frequency differs from the nominal one was determined. A new active power calculation method ensuring accurate results for sampling over two signal periods is proposed. The method uses a very simple computing algorithm.

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Authors and Affiliations

  1. Division of Measuring and Medical Electronic Instruments, Wroclaw University of Technology, Wroclaw, Poland

    Emilia Nowaczyk

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  1. Emilia Nowaczyk
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Correspondence to Emilia Nowaczyk.

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Nowaczyk, E. Method of Reducing Error in Calculations of Active Power from Signal Samples. Electr Eng 89, 419–424 (2007). https://doi.org/10.1007/s00202-006-0017-3

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  • DOI: https://doi.org/10.1007/s00202-006-0017-3

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