Supraharmonic Interactions between Multiple Devices within Different Local Low Voltage Grid Structures

Christian Waniek, Thomas Wohlfahrt, Johanna M.A. Myrzik, Jan Meyer and Peter Schegner




In this paper, the effects of the interaction between multiple devices and with the low voltage grid concerning the devices’ supraharmonic or high frequency emission and immunity in the frequency range between 2 kHz and 150 kHz are presented based on a laboratory set up. This set up consists of two photovoltaic (PV) inverters that represent the main source of supraharmonic disturbances and three typical household devices for a realistic depiction of a typical local grid structure. In order to determine the impact of the grid impedance, the whole installation is connected to six different grid impedances that are derived from previously performed grid impedance measurements within the research project VeNiFre150. The corresponding grid impedance values are also shorty presented.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 16)
Pages: 316-319 Date of Publication: 2018/04/20
ISSN: 2172-038X Date of Current Version:2018/03/23
REF: 297-18 Issue Date: April 2018
DOI:10.24084/repqj16.297 Publisher: EA4EPQ

Authors and affiliations

Christian Waniek1, Thomas Wohlfahrt1, Johanna M.A. Myrzik1, Jan Meyer2 and Peter Schegner2
1. Institute of Energy Systems, Energy Efficiency and Energy Economics. TU Dortmund University. Dortmund (Germany)
2. Institute of Electrical Power Systems and High Voltage Engineering. Technische Universitaet Dresden. (Germany)

Key words

Supraharmonics, high frequency disturbances, interaction between devices, grid impedances.


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