Digital sampling method in the measurements of electrical power and energy

Authors:
Costin Cepisca;George Seritan;Catalin Ioan Cepisca;Sorin Dan Grigorescu
Affiliations:
Electrical Engineering Faculty, University POLITEHNICA of Bucharest, Romania;Electrical Engineering Faculty, University POLITEHNICA of Bucharest, Romania;Electrical Engineering Faculty, University POLITEHNICA of Bucharest, Romania;Electrical Engineering Faculty, University POLITEHNICA of Bucharest, Romania
Venue:
MMACTEE'07 Proceedings of the 9th WSEAS international conference on Mathematical methods and computational techniques in electrical engineering
Year:
2007

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Abstract

The paper presents the results of application of digital sampling method and a study of the errors caused in the measurement of active power and energy with digital meters. The presence of non-sinusoidal regimes makes the use of the Shannon theorem more difficult. The models of digital sampling operations and Matlab applications show which the sampling frequency for a minimum of errors is.