Comparison and Evaluation of Modular Integrated Electric Drives for Automotive Traction Applications
(English)In: IEEE Transactions on Transportation Electrification, ISSN 2332-7782Article in journal (Refereed) Submitted
In order to increase the competitiveness of the integrated motor drives (IMDs), alternative topologies have been developed for electric and hybrid electric vehicles. Within this framework, the integrated modular motor drive (IMMD) concept has been proposed, aiming to make the system more compact and fault-tolerant. Potential converter topologies for an IMMD are reviewed in this paper, with particular focus on the stacked polyphase bridges converter, the parallel-connected polyphase bridges converter and the modular high frequency converter. The machine topologies that are the best candidates to be used in such drive systems are also presented. Based on the FreedomCar 2020 specifications, a comparative evaluation of the studied topologies is presented and discussed in terms of machine design, power losses, energy storage requirements, and cell redundancy. The conventional two-level three-phase drive system is utilized as the reference. Finally, predicted costs of the studied drive systems are compared for both fault-tolerant designs and non-fault tolerant designs.
Electric vehicle, integrated motor drive, modular interior permanent magnet.
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-196729OAI: oai:DiVA.org:kth-196729DiVA: diva2:1047777
QC 201611212016-11-182016-11-182016-11-21Bibliographically approved