The estimation of the truncation error in the asynchronous sampling of an ac signal containing sub- and interharmonic components is considered. The expressions derived enable one to choose the optimum method and the necessary number of samples of a complex input signal. The limits of the error of the method of signal processing are determined taking the effect of sampling into account. Mathematical modeling of the procedure for estimating the possible truncation error is carried out.
Similar content being viewed by others
References
A. Testa and R. Langella, “Power system subharmonics,” Proc. IEEE Pow. Soc. Gen. Meeting (2005), pp. 1922–1927.
P. Petrovic and M. Stevanovic, “Measuring the active power of synchronously sampled AC signals in the presence of interharmonics and subharmonics,” IEE Proc. Electr. Power Appl., 153, No. 2, 227–235 (2006).
D. J. Nyarko and K. Stromsmoe, “Analysis of truncation errors in asynchronous sampling of periodic signals,” Proc. Canadian Conf. Electrical and Computer Eng. (1992), Vol. 2, pp. 1117–1120.
F. J. J. Clarke and J. R. Stockton, “Principles and theory of wattmeters operating on the basis of regularly spaced sample pairs,” J, Phys. E., 15, 645–652 (1982).
G. N. Stenbakken, “A wideband sampling wattmeter,” IEEE Trans., PAS-103, No. 10, 2919–2926 (1984).
Lu Zu-Liang, “An error estimate for quasi-integer-period sampling and an approach for improving its accuracy,” IEEE Trans. Instrum. Measur., 37, No. 3, 141–150 (1988).
J. M. D. Pereira, A. C. Serra, and P. S. Girao, “Minimising truncation error in digital wattmeters,” Proc. 9th Int. Symp. Electrical Instrum. Industry, Glasgow (1997), Vol. 1, pp. 113–116.
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Izmeritel’naya Tekhnika, No. 11, pp. 50–54, November, 2010
Rights and permissions
About this article
Cite this article
Petrovic, P.B. An estimate of the truncation error in the asynchronous sampling of ac signals containing inter- and subharmonics. Meas Tech 53, 1264–1271 (2011). https://doi.org/10.1007/s11018-011-9652-9
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11018-011-9652-9