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Investigation of Shifted PWM Methods for a Dual Three-Phase System to Reduce Capacitor RMS Current

  • Mild hybrid automotive topologies containing a 48V high power (>15 kW) electric drive system demand a high integration of power electronics and electrical machine. A multi-phase motor winding topology helps to keep the per-phase operating currents to a reasonable level. Close integration and multi-phase system have led to a drive system with dual 3-phase systems supplied by a common 48V DC-link, which allows to shift PWM patterns for reduction of DC-link capacitor ripple current and size. This paper derives some basic rules for combinations of common PWM methods for dual 3-phase systems without magnetic cross-coupling. Experimental measurements verify simulated results.

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Metadaten
Author:Bernhard Hopfensperger, Andreas Daubner, Fabian Herrmann, Andrew Hopkins, Phil Mellor
URL / DOI:https://ieeexplore.ieee.org/document/9177989
ISBN:978-3-8007-5245-4
Parent Title (English):PCIM Europe Digital Days 2020: International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management: 07.-08.07.2020, Online [proceedings]
Publisher:VDE-Verlag
Place of publication:Berlin, Offenbach
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2020
Release Date:2022/05/17
Tag:dual three phase system
GND Keyword:Elektroantrieb
First Page:124
Last Page:131
Institutes:Fakultät Elektro- und Informationstechnik
Fakultät Elektro- und Informationstechnik / Labor Elektrische Maschinen und Antriebstechnik
Begutachtungsstatus:peer-reviewed
research focus:Energie und Mobilität
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG