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A Highly Integrated 25-Level Cascaded H-Bridge Active Filter for the Mitigation of High Order Current Harmonics

Bernet, Daniel; Schwendemann, Ruediger; Stefanski, Lukas ORCID iD icon; Hiller, Marc

Abstract:

The increasing share of power electronics in the conversion and distribution of electrical energy represents a novel challenge for energy quality and supply stability. It is to be expected that high-frequency current harmonics will increase significantly with the number of grid-connected power converters. To reduce the associated disadvantages, this paper presents a 25-Level Cascaded H-Bridge Active Filter for mitigating converter-induced current harmonics in the kilohertz range.~Compared to conventional active filters, the proposed use of a voltage-source active filter does not require high control bandwidth, tuning to specific frequencies or measurement and tracking of high frequency currents.~The highly integrated design on printed circuit boards allows a high number of voltage levels and a high power density at small additional effort and costs. A 12 kVA-demonstrator is used to mitigate the switching frequency current harmonics of a grid-connected two-level converter, verifying the effectiveness of the active filter configuration.


Postprint §
DOI: 10.5445/IR/1000134659
Veröffentlicht am 05.07.2021
Scopus
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Elektrotechnisches Institut (ETI)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 03.05.2021
Sprache Englisch
Identifikator ISBN: 978-3-8007-5515-8
KITopen-ID: 1000134659
HGF-Programm 37.12.02 (POF IV, LK 01) Design,Operation & Digitalization of the Future Energy Grids
Erschienen in PCIM Europe digital days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
Veranstaltung PCIM Europe digital days 2021: International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (2021), Online, 03.05.2021 – 07.05.2021
Verlag VDE Verlag
Seiten 972-979
Nachgewiesen in Scopus
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