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A Novel Inverter Topology for Compact EV and HEV Drive Systems
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion. (High Power Electronics)ORCID iD: 0000-0002-8565-4753
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.ORCID iD: 0000-0002-6283-7661
Universität der Bundeswehr München.
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2013 (English)In: 39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013, IEEE , 2013, 6590-6595 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper describes a new modular inverter topol­ogy suitable for compact drive systems in electric road vehicles. The topology is based on dc-side cascading of three-phase two ­level inverter bridges, each feeding a set of three-phase windings of a motor. This topology is compared by calculation to the known modular high-frequency (MHF) converter, and is found to have similar losses and semiconductor expenditure requirements. Simulations verify the dynamic and static properties of the converter in a realistic application.

Place, publisher, year, edition, pages
IEEE , 2013. 6590-6595 p.
Series
IEEE Industrial Electronics Society, ISSN 1553-572X
Keyword [en]
Drive systems, High frequency HF, Inverter topologies, Realistic applications, Road vehicles, Static properties, Three-phase winding, Two-level inverters
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
SRA - Energy
Identifiers
URN: urn:nbn:se:kth:diva-134885DOI: 10.1109/IECON.2013.6700222ISI: 000331149506070Scopus ID: 2-s2.0-84893587078ISBN: 978-147990224-8 (print)OAI: oai:DiVA.org:kth-134885DiVA: diva2:668561
Conference
39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013; Vienna; Austria; 10 November 2013 through 14 November 2013
Funder
StandUp
Note

QC 20140224

Available from: 2013-12-01 Created: 2013-12-01 Last updated: 2016-11-18Bibliographically approved
In thesis
1. Integrated Compact Drives for Electric and Hybrid Electric Vehicles
Open this publication in new window or tab >>Integrated Compact Drives for Electric and Hybrid Electric Vehicles
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

To develop more competitive solutions, one of the trends in the development of drive systems for electric and hybrid electric vehicles (EVs/HEVs) is to integrate the power electronic converter and the electric motor. This thesis aims to investigate the performance and the operation of modular converters in integrated motor drive systems for EVs/HEVs.

In the first part, the concept of integrated modular motor drive systems for EVs/HEVs is introduced. Three suitable modular converter topologies, namely, the stacked polyphase bridges (SPB) converter, the parallel-connected polyphase bridges (PPB) converter and the modular high frequency (MHF) converter, are evaluated and compared with conventional electric drives in terms of power losses, energy storage requirements, and semiconductor costs.

In the second part of the thesis, the harmonic content of the dc-link current of the SPB converter is analyzed. By adopting an interleaving modulation the size of the dc-link capacitor can be reduced without increasing the switching frequency, which is beneficial for achieving a compact integrated system. This method allows for around 80% reduction of the dc-link capacitance for vehicle drives, resulting in a significant size reduction of the power converter and improved integration.

Finally, a communication-based distributed control system for the SPB converter is presented. The communication delay arising from the serial communication is inevitable, thus a timing analysis is also presented. It has been found that stability is maintained even when the baud rate of the SPI communication is lower than 1 Mbps, indicating that other communication protocols with lower bandwidths can also be adopted for this topology.

The analytical investigations provided in this thesis are validated by experiments on a four-submodule laboratory prototype. Experimental results verify the correctness of the theoretical analysis, as well as the dynamic performance of the distributed control system.

Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2016. 123 p.
Series
TRITA-EE, ISSN 1653-5146
Keyword
distributed control, electric vehicle, energy storage capability, integrated motor drive, modular converter, modulation, power losses, stacked polyphase bridges converter, switching frequency
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-196732 (URN)978-91-7729-196-1 (ISBN)
Public defence
2016-12-19, F3, Lindstedtsvägen 26, Stockholm, 10:00 (English)
Opponent
Supervisors
Note

QC 20161121

Available from: 2016-11-21 Created: 2016-11-18 Last updated: 2016-11-21Bibliographically approved

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Norrga, StaffanWallmark, Oskar

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