Harmonic Source Location in the Distribution Grid Using Time-
Synchronized Measurements

S. Babaev1, V. Cuk, J.F.G. Cobben and H.E. van den Brom

2018/04/20

Abstract

A method for locating harmonic producing source in the low-voltage distribution network is presented. The method aims to employ natural load variability of the existing non-linear installations. By performing multi-point time-synchronized acquisition of the voltage and current waveforms and analysing spectral characteristics of the signals, harmonic impedance of the cable section associated with non-linear load is estimated. A certain rejection algorithm is applied in order to discard data sets with unreliable information. To validate the method, a field test was established in the low-voltage grid. The results demonstrate capability of the proposed technique to accurately estimate harmonic impedances and successfully identify location of harmonic current source in the grid.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 16)
Pages: 276-280 Date of Publication: 2018/04/20
ISSN: 2172-038X Date of Current Version:2018/03/23
REF: 284-18 Issue Date: April 2018
DOI:10.24084/repqj16.284 Publisher: EA4EPQ

Authors and affiliations

S. Babaev(1), V. Cuk(1), J.F.G. Cobben(1) and H.E. van den Brom(2)
1. Department of Electrical Engineering. Eindhoven University of Technology (TU/e). Eindhoven (Netherlands)
2. VSL. Delft (Netherlands)

Key words

Power quality, Power system harmonics, Impedance measurement, Power system measurements.

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