Results 261 to 270 of about 1,135,878 (306)

Motors/generators for traction /propulsion applications: A review

2011 IEEE International Electric Machines & Drives Conference (IEMDC), 2011
The growing interest in electrification has led to a growing interest in hybrid/electrical traction applications. Many hybrid/electrical vehicles have been commercially introduced. Various technologies for the traction motors/generators have been developed.
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Inverter-Fed Asynchronous Motors for Traction Systems

IFAC Proceedings Volumes, 1977
Publisher Summary Variable-frequency inverter-fed asynchronous motor constitutes, in the field of electric traction, an effective option to traditional d.c. motor. The success of this equipment is connected to the advantages the squirrel cage asynchronous motor may provide lower weight and small dimensions, higher power at high speed, less ...
C. Rossi, G. Stopiglia, E. Tortello
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Asynchrounous Motors in Electric Traction

EPE Journal, 2000
AbstractIn many applications the electric motors must possess a high overload capacity. That is particularly necessary in electric traction, in lifting gears and in various industrial applications.Initially either d.c. motors were employed with series excitation, able to assure high working flux value and to produce high torque, or d.c.
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Progress in the design of traction motors

Electrical Engineering, 1949
The past quarter of a century has witnessed important progress in traction-motor design. The primary objective of the designer has been to achieve weight reduction. In order to evaluate the advances made along this line, the author uses “speed-ratio power” as a basis of comparison.
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Thermal analysis of traction motors

2014 IEEE Transportation Electrification Conference and Expo (ITEC), 2014
➢ Very challenging machine specifications require performance analysis across the entire operational envelope ➢ Software tools such as the ones talked about today can be used to quickly and accurately predict efficiency maps and thermal transient with different drive cycles ➢ This enables increased productivity and improved ...
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DC and AC traction motors

9th IET Professional Development Course on Electric Traction Systems, 2006
This paper describes the use of electrical machines as the prime mover in railway locomotives and vehicles. First, the loading of traction machines is examined from knowledge of vehicle movement dynamics within the traction duty cycle. Then the operation of the principal types of traction machine - DC, synchronous and induction (asynchronous) motors ...
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The Overhaul and Maintenance of Direct-Current Traction Motors

Journal of the Institution of Locomotive Engineers, 1955
The paper is a review of the maintenance practices mainly developed by London Transport for 600-volt direct-current railway traction motors. The paper describes the procedures adopted to improve reliability and the methods used to carry out heavy repairs after failures have occurred.
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Gear ratio and its effect on traction motors

Electrical Engineering, 1944
The mechanical power delivered by the motors of electrically propelled vehicles is almost always transmitted through gears to axles. The few exceptions are some gearless electric locomotives designed many years ago. Although the top speeds of vehicles and locomotives have increased materially since the inception of electric drive, the very nature of ...
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Design Optimization of a Traction Synchronous Homopolar Motor

Mathematics, 2021
Alecksey Anuchin, Vadim Kazakbaev, Vladimir Prakht   +2 more
exaly  

Dynamic analysis of traction motor in a locomotive considering surface waviness on races of a motor bearing

Railway Engineering Science, 2021
Zaigang Chen, Kaiyun Wang, Yuqing Liu
exaly