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An Online Calibration System for Digital Input Electricity Meters Based on Improved Nuttall Window

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Open access
Authors
Li, Z.
Du, Y.
Abu-Siada, Ahmed
Bao, G.
Yu, J.
Hu, T.
Zhang, T.
Date
2018
Type
Journal Article

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Li, Z. and Du, Y. and Abu-Siada, A. and Bao, G. and Yu, J. and Hu, T. and Zhang, T. 2018. An Online Calibration System for Digital Input Electricity Meters Based on Improved Nuttall Window. IEEE Access. 6: pp. 71262 - 71270.
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IEEE Access
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School of Electrical Engineering, Computing and Mathematical Science (EECMS)
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© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Abstract

OAPA This paper proposes an improved online calibration technique for digital input electricity meters. The technique employs a double spectral line interpolation fast Fourier transform algorithm with four-item, three-order Nuttall window to reduce the measurement error caused by spectrum leakage, frequency fluctuation, noise pollution and harmonic interference. A calibration system of friendly human-computer interaction is designed using LabVIEW. Simulation and practical results show that the proposed calibration system with improved Nuttall window algorithm is of high accuracy and reliability when compared with the traditional calibration algorithm currently used by industry practice.