Harmonic analysis and mitigation in distribution grids with high penetration of power inverters
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Paper number
1022
Working Group Number
Conference name
CIRED 2019
Conference date
3-6 June 2019
Conference location
Madrid, Spain
Peer-reviewed
Yes
Short title
Convener
Authors
Schori, Stefan, Bern University of Applied Sciences, Switzerland
Höckel, Michael, Bern University of Applied Sciences, Switzerland
Dalessandro, Luca, Schaffner Group, Switzerland
Rupp, Adrian, ewz, Switzerland
Greuter, Jürg, ewz, Switzerland
Heiniger, Lukas, Bern University of Applied Sciences BFH, Switzerland
Höckel, Michael, Bern University of Applied Sciences, Switzerland
Dalessandro, Luca, Schaffner Group, Switzerland
Rupp, Adrian, ewz, Switzerland
Greuter, Jürg, ewz, Switzerland
Heiniger, Lukas, Bern University of Applied Sciences BFH, Switzerland
Abstract
Inverters of large heat pumps in an urban low voltage grid generate current harmonics and cause consequently significant variations of the respective voltage harmonics. The voltage level at each grid point is not only influenced by the operation of such inverters, but higher harmonic voltage amplitudes can be expected, caused by the sum of all loads in the grid. The paper provides a comprehensive harmonic analysis of a typical urban distribution grid including heat pumps and presents insights on the variations and impact on the voltage profile of the 15th harmonic currents. An active harmonic filter was installed to enhance the power quality, by compensating the harmonic currents and by improving the voltage profile at grid points close-by the heat pumps.
Table of content
Keywords
Publisher
AIM
Date
2019-06-03
Published in
Permanent link to this record
https://cired-repository.org/handle/20.500.12455/246
http://dx.doi.org/10.34890/476
http://dx.doi.org/10.34890/476
ISSN
2032-9644
ISBN
978-2-9602415-0-1