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dc.contributor.author
Li, Yunni
dc.contributor.author
Azurza Anderson, Jon
dc.contributor.author
Schäfer, Jannik
dc.contributor.author
Bortis, Dominik
dc.contributor.author
Kolar, Johann W.
dc.contributor.author
Everts, Jordi
dc.date.accessioned
2021-04-20T08:14:02Z
dc.date.available
2021-04-20T08:14:02Z
dc.date.issued
2020
dc.identifier.isbn
978-1-7281-5301-8
en_US
dc.identifier.isbn
978-1-7281-5302-5
en_US
dc.identifier.other
10.1109/IPEMC-ECCEAsia48364.2020.9367872
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/479513
dc.description.abstract
There is an increasing demand for three-phase mains interfaced high power EV chargers that provide a wide output voltage range while featuring low losses and a high power density. In this context, a synergetic control structure for a two-stage three-phase boost PFC rectifier with subsequent DC/DC buck stage was proposed, which allows to only switch one out of the three rectifier bridge legs, leading to switching loss savings of over 66 %. This is achieved by varying the voltage of the intermediate DC-link, which features a small capacitance, with six times mains frequency, always following the maximum three-phase mains line-to-line voltage. Although this concept has been proven to work correctly for ideal three-phase mains conditions, it is unclear whether it can safely operate under irregular three-phase grid conditions such as heavy harmonic distortions, unbalances, phase failures, and grid overvoltages caused by, e.g., lightning. Hence, after a short review of the employed synergetic control structure, this paper focuses on the operation of the proposed boost-buck converter for an application subject to a wide variety of three-phase grid disturbances. Comprehensive analysis with respect to irregular grid conditions is performed, resulting in a slight modification of the converter's front-end and its control structure in order to be able to handle faulty mains conditions. The proposed hardware and control modifications enabling the proper converter functionality under regular and irregular grid conditions are verified by circuit simulations. Finally, design guidelines are given for the hardware implementation of a resilient three-phase grid interfaced EV charger that can fulfill all required grid standards.
en_US
dc.language.iso
en
en_US
dc.publisher
IEEE
en_US
dc.title
Control and Protection of a Synergetically Controlled Two-Stage Boost-Buck PFC Rectifier System under Irregular Grid Conditions
en_US
dc.type
Conference Paper
dc.date.published
2021-03-09
ethz.book.title
2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia)
en_US
ethz.pages.start
422
en_US
ethz.pages.end
429
en_US
ethz.event
9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia)
en_US
ethz.event.location
Nanjing, China
en_US
ethz.event.date
November 29 - December 2, 2020
en_US
ethz.notes
Conference lecture held on December 1, 2020. Due to the Coronavirus (COVID-19) the conference was held as a hybrid conference.
en_US
ethz.identifier.scopus
ethz.publication.place
Piscataway, NJ
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.::03573 - Kolar, Johann W. / Kolar, Johann W.
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.::03573 - Kolar, Johann W. / Kolar, Johann W.
en_US
ethz.date.deposited
2021-04-20T08:14:11Z
ethz.source
SCOPUS
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-04-20T08:14:12Z
ethz.rosetta.lastUpdated
2021-04-20T08:14:12Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/477360
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/456866
ethz.COinS
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