NDLI: Concept study of a double rotor induction machine used as continuously variable transmission

Content Provider	IEEE Xplore Digital Library
Author	Druant, Joachim De Belie, Frederik Sergeant, Peter Melkebeek, Jan
Copyright Year	2015
Description	Author affiliation: Electrical Energy Laboratory of the department of Electrical Energy, Systems & Automation of Ghent University, B-9000 Ghent, Belgium (Druant, Joachim; De Belie, Frederik; Sergeant, Peter; Melkebeek, Jan)
Abstract	In a drive train a continuously variable transmission (CVT) has the advantage that the combustion engine can be driven in its optimal point along the requested power curve, which enhances overall efficiency. Moreover there is no power loss during shifting of gears which is often demanded in off highway applications. Several mechanical and hydraulic CVT's exist that have already proven their functionality, each having their pros and cons. This paper introduces the concept of an electromagnetic CVT which has some inherent advantages compared to mechanical systems being the absence of friction and the need for lubrication, only two moving parts and inherent overload protection. The machine can be seen as a conventional induction motor with two rotors. The rotors are arranged in a concentric way and are electromagnetically coupled. The working principle is explained, and an efficiency map is calculated for a scaled test case. It is concluded that with a smart choice of the interrotor flux a good efficiency can be achieved in a broad range of torque and flux of the interrotor.
Starting Page	656
Ending Page	661
File Size	372006
Page Count	6
File Format	PDF
e-ISBN	9781479979417
DOI	10.1109/IEMDC.2015.7409129
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-05-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rotors Torque Stator windings Wheels Induction machines Gears modeling Electrical variable transmission continuously variable transmission efficiency map
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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