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A Review of Thermal Designs for Improving Power Density in Electrical Machines
IEEE Transactions on Transportation Electrification, 2020More electric aircraft is a promising solution to the problems of fuel consumption, emissions, and noise faced by the aviation industry. Electrical machines with high power density are essential to improve the overall performance of more electric ...
Chaofan Dong +3 more
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Asymmetrical Geometries in Electrical Machines
International Review of Electrical Engineering (IREE), 2016This paper describes and classifies possibilities of using asymmetric geometry solutions in slotted electrical machines with nonlinear soft magnetic core. These asymmetrical optimizations can reduce cogging torque and torque ripple at the nominal load. Additionally, some of them can improve overload capability, and field weakening capability by proper ...
Petrov, Ilya +3 more
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A Time-Saving Approach for the Thermal Lifetime Evaluation of Low-Voltage Electrical Machines
IEEE transactions on industrial electronics (1982. Print), 2020Modern electrical machines, such as those employed in transportation applications are required to provide very high performance in terms of power (and torque) density and efficiency.
V. Madonna +4 more
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The Cooling of Electric Machines
Transactions of the American Institute of Electrical Engineers, 1923The elevation in temperature of the windings of any electric machine due to the internal heat losses is usually the dominating factor in limiting the rating of the machine. This limitation found in the heating, is primarily due to the effects of high temperatures on the various types of insulation used in such machines.
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2015 IEEE Electrical Insulation Conference (EIC), 2015
When an electric machine has an insulation failure in service a decision must be made to rewind or replace it. In addition, depending on the age of the machine, the possibility of uprating the insulation system can be made along with the rewind. This paper will review the areas that need to be addressed in the process of making these assessments.
Howard W Penrose, Nancy Frost
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When an electric machine has an insulation failure in service a decision must be made to rewind or replace it. In addition, depending on the age of the machine, the possibility of uprating the insulation system can be made along with the rewind. This paper will review the areas that need to be addressed in the process of making these assessments.
Howard W Penrose, Nancy Frost
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Modulation Effect of Slotted Structure on Vibration Response in Electrical Machines
IEEE transactions on industrial electronics (1982. Print), 2019Analytical method for vibration and noise prediction in electrical machines is computationally efficient and widely used. In conventional analytical approaches, the slotted stator is simplified as a cylinder, and it is generally believed that the ...
H. Fang, Dawei Li, R. Qu, Peng Yan
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IEE Colloquium on Machines and Drives for Electric and Hybrid Vehicles, 1996
While there are a large variety of hybrid vehicles, most fall into one of two types, series or parallel, the terms being derived from the mechanical arrangement of the power train. Each system has relative advantages and disadvantages for the vehicle designer, the relative importance of which depends on the purpose of the vehicle.
A.E. Corbett, C. Mellors
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While there are a large variety of hybrid vehicles, most fall into one of two types, series or parallel, the terms being derived from the mechanical arrangement of the power train. Each system has relative advantages and disadvantages for the vehicle designer, the relative importance of which depends on the purpose of the vehicle.
A.E. Corbett, C. Mellors
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IEEE transactions on magnetics, 2019
The growth of electric and hybrid electric vehicles has drawn more attention toward the development of high power density electrical machines. The materials used in the fabrication of electrical machines play a crucial role in enhancing their power ...
P. Ramesh, N. C. Lenin
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The growth of electric and hybrid electric vehicles has drawn more attention toward the development of high power density electrical machines. The materials used in the fabrication of electrical machines play a crucial role in enhancing their power ...
P. Ramesh, N. C. Lenin
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1988
Publisher Summary This chapter describes the characteristics of dc machines along with a particular kind of ac motor. The simple alternator becomes a dc generator by the replacement of the slip-rings by a split-ring automatic switch or commutator.
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Publisher Summary This chapter describes the characteristics of dc machines along with a particular kind of ac motor. The simple alternator becomes a dc generator by the replacement of the slip-rings by a split-ring automatic switch or commutator.
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Electrical machines for aircraft
Proceedings of the IEE Part A: Power Engineering, 1956The electrical machines used in aircraft differ greatly from normal industrial machines because they must have the lowest possible weight and bulk, but must be capable of operating over a wide range of ambient temperature and air pressure at varying altitudes.
W. Philipp, B. Adkins, A. Hossle
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