HVDC Overhead Line Corona Characteristics: A Modern Toolbox and Geographic Specificities
dc.contributor.author
Bleuler, Pascal
dc.contributor.supervisor
Franck, Christian
dc.contributor.supervisor
Lu, Tiebing
dc.date.accessioned
2023-06-30T13:57:51Z
dc.date.available
2023-06-29T21:56:07Z
dc.date.available
2023-06-30T13:57:51Z
dc.date.issued
2023
dc.identifier.uri
http://hdl.handle.net/20.500.11850/619290
dc.identifier.doi
10.3929/ethz-b-000619290
dc.description.abstract
The energy transition that needs to happen in the face of the climate crisis requires electric transmission grids to have a higher capacity to absorb power flows. An important technical limitation in this regard are corona effects around overhead lines.
This thesis presents tools and methods to assess the long-term corona characteristics of HVDC overhead line corona.
Advances in material sciences allow to study the fundamental interactions of water droplets in electric fields on different surfaces. These interactions and the way they can lead to partial discharges are explained using experimental results as well as predictive simulations models and metrics are given to characterize the corona performance of surfaces.
Based on modern IoT technologies, a unified sensor platform is presented that can measure different heterogeneous corona quantities while being efficient in terms of both energy and cost. The platform's capabilities and usefulness are demonstrated with experiments on test lines. Novel visualization techniques for partial discharge measurements are introduced as well. These methods are all required to enable meaningful long-term measurement of overhead line corona.
Long-term results of an outdoor HVDC test line in the Swiss urban environment are presented. On their basis, trends are identified while still showing the variability in long-term corona data.
It is discussed to what extent corona effects are specific to climates and environments and what the important metrics are in this respect. The unified IoT sensor platform is specifically introduced to make it easier to deploy a large quantity of corona measurement devices and thus monitor corona performance of overhead lines over entire territories traversed by transmission lines.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
ETH Zurich
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
OVERHEAD LINES (ELECTRICAL ENERGY DISTRIBUTION)
en_US
dc.title
HVDC Overhead Line Corona Characteristics: A Modern Toolbox and Geographic Specificities
en_US
dc.type
Doctoral Thesis
dc.rights.license
In Copyright - Non-Commercial Use Permitted
dc.date.published
2023-06-30
ethz.size
246 p.
en_US
ethz.code.ddc
DDC - DDC::6 - Technology, medicine and applied sciences::621.3 - Electric engineering
en_US
ethz.identifier.diss
29000
en_US
ethz.publication.place
Zurich
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02140 - Dep. Inf.technologie und Elektrotechnik / Dep. of Inform.Technol. Electrical Eng.::02632 - Inst. f. El. Energieübertragung u. Hoch. / Power Systems and High Voltage Lab.::03869 - Franck, Christian / Franck, Christian
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02140 - Dep. Inf.technologie und Elektrotechnik / Dep. of Inform.Technol. Electrical Eng.::02632 - Inst. f. El. Energieübertragung u. Hoch. / Power Systems and High Voltage Lab.::03869 - Franck, Christian / Franck, Christian
en_US
ethz.date.deposited
2023-06-29T21:56:07Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2023-06-30T13:57:52Z
ethz.rosetta.lastUpdated
2024-02-03T00:57:50Z
ethz.rosetta.versionExported
true
ethz.COinS
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Doctoral Thesis [30258]