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Comparative Analysis of Definitions for the Harmonic Emission Levels

J. Denoël, M. Petit, T.D. Le

2016/5/20

Abstract

To keep a high level of power quality, Distribution System Operators (DSOs) must keep harmonic voltage levels under limits specified in standards. These harmonic voltages are due to non-linear equipment connected inside installations, which inject harmonic currents into public networks. In order to apply emission limits per installation, DSOs need to have an accurate and reliable indicator to assess the harmonic emissions of an installation. In this paper, a comparative analysis of two definitions for assessing the harmonic emissions of installations is presented. Their respective advantages and drawbacks are pointed out.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 14)
Pages:254-259 Date of Publication: 2016/5/20
ISSN: 2172-038X Date of Current Version:2016/05/04
REF:284-16 Issue Date: May 2016
DOI:10.24084/repqj14.284 Publisher: EA4EPQ

Authors and affiliations

J. Denoel, M. Petit, T.D. Le
Geeps, CNRS UMR 8507-Centrale Supélec, UPSud and UPMC-Gif-sur-Yvette. France

Key words

Harmonic Emission, Disturbing Installation, Power quality, Distribution networks.

References

[1] EN 50160 – “Voltage characteristics of electricity supplied by public distribution networks”, English version 2011.
[2] W. Xu, “A method for determining customer and utility harmonic contributions at the point of common coupling”, IEEE Trans. on Power Delivery, vol. 15, no. 2, pp. 804-811, 2000.
[3] Blazic, B. “A modified harmonic current vector method for harmonic contribution determination”, in Power Systems Conference and Exposition, IEEE PES, vol. 3, pp. 1470-1475, Oct. 2004.
[4] Azouaou, “Study of the direction of the harmonic injections in the electrical power systems”, IEEE Universities Power Engineering Conference, 2004.
[5] Grady, “Introduction of the concept of friendliness power to characterize the harmonic emission of non-linear loads”, IEEE Trans. on Electric Ship Technologies Symposium, 2005.
[6] IEC/TR 61000-3-6: Electromagnetic compatibility (EMC) – Part 3-6: Limits – Assessment of emission limits for the connection of distorting installations to MV, HV and EHV power systems. Geneva, 2008.
[7] Gonbeau, O., “Method to determine contribution of the customer and the power system to the harmonic disturbance,” 17th International Conference on Electricity Distribution, May 2003.

 
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