Dual-inverter control synchronization strategy to minimize the DC-link capacitor current

Schiedermeier M, Rettner C, Steiner M, März M (2020)

Publication Type: Conference contribution

Publication year: 2020

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: 2020 IEEE Vehicle Power and Propulsion Conference, VPPC 2020 - Proceedings

ISBN: 9781728189598

DOI: 10.1109/VPPC49601.2020.9330921

Abstract

This paper proposes the possible switching synchronization strategies of an automotive dual-inverter against the background of minimizing the RMS DC-link capacitor current. The publication mainly focuses on the straight-ahead motion of a rear axle with one electric drive per wheel. In addition to it, a dual-inverter consisting of two subinverters with a common DC-link capacitor is taken into consideration. These sub-inverters each have three phases and are based on a 2-level voltage-source-topology. To control the electrical machines, the continuous Space-Vector-Modulation strategy is used. For this application, different control signal synchronization strategies of the two sub-inverters of the dualinverter are presented. Apart from the existing strategies, this paper proposes a new method, which inherits a compromise between low complexity and high effectiveness. In contrast to previous publications, the resulting capacitor currents are quantified and subsequentlyevaluated. This novel quantification, which is dependent on the dual-inverter's operating point, provides a base for targeted dimensioning of the capacitor. Moreover, this forms the foundation for further investigations of vehicle's cornering, as well as for the possible synchronization of stand-alone inverters. In the context of this publication, the presented results are verified by experimentally determined data of a motor-inverter system.

Authors with CRIS profile

Cornelius Rettner Lehrstuhl für Leistungselektronik Martin März Lehrstuhl für Leistungselektronik

Involved external institutions

Ostbayerische Technische Hochschule Regensburg (OTH) DE Germany (DE)

How to cite

APA:

Schiedermeier, M., Rettner, C., Steiner, M., & März, M. (2020). Dual-inverter control synchronization strategy to minimize the DC-link capacitor current. In 2020 IEEE Vehicle Power and Propulsion Conference, VPPC 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc..

MLA:

Schiedermeier, Maximilian, et al. "Dual-inverter control synchronization strategy to minimize the DC-link capacitor current." Proceedings of the 17th IEEE Vehicle Power and Propulsion Conference, VPPC 2020 Institute of Electrical and Electronics Engineers Inc., 2020.

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