NDLI: Optimum speed ratio of induction motor drives for electrical vehicle propulsion

Content Provider	IEEE Xplore Digital Library
Author	Hall, E. Ramamurthy, S.S. Balda, J.C.
Copyright Year	2001
Description	Author affiliation: Univ. Tecnologica de Panama, Panama (Hall, E.)
Abstract	When sizing and subsequently designing an electric motor drive for any battery-powered electric vehicle (EV), the main objective is to get a large charge range while achieving low drive weight, volume and cost. The selection of the speed ratio (i.e., motor maximum speed divided by its rated speed) has a great impact on the drive efficiency, weight, volume and cost. To this end, the paper presents a methodology to determine the optimum speed ratio of an induction motor drive for EV applications using the EV America Technical Specifications as the basis. Factors like the peak power rating, continuous power rating, peak current, weight, volume and average loss of motor drives are functions of the speed ratio. The paper shows the need to consider several performance and design factors besides the peak power rating, and includes a set of criteria for selecting the optimum speed ratio of induction motors used in EV applications. The optimum speed ratio was found to be 3.0, where the motor weight, volume, cost, drive peak current and average losses (affecting the life of the battery pack) are low.
Sponsorship	IEEE Power Electron. Soc.
Starting Page	371
Ending Page	377
File Size	617887
Page Count	7
File Format	PDF
ISBN	0780366182
DOI	10.1109/APEC.2001.911674
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-03-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Induction motor drives Electric vehicles Vehicle driving Propulsion DC motors Motor drives Permanent magnet motors Traction motors AC motors Reluctance motors
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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