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Torque ripple reduction in electric machines [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2017.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Additional Creators
General Electric Company, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
An electric machine, such as an Internal Permanent magnet or Synchronous Reluctance machine, having X phases, that includes a stator assembly, having M slots, with a stator core and stator teeth, that is further configured with stator windings to generate a stator magnetic field when excited with alternating currents and extends along a longitudinal axis with an inner surface that defines a cavity; and a rotor assembly, having N poles, disposed within the cavity which is configured to rotate about the longitudinal axis, wherein the rotor assembly includes a shaft, a rotor core located circumferentially around the shaft. The machine is configured such that a value k=M/(X*N) wherein k is a non-integer greater than about 1.3. The electric machine may alternatively, or additionally, include a non-uniformed gap between the exterior surface of the rotor spokes and the interior stator surface of the stator.
Report Numbers
E 1.99:9,742,228
9,742,228
Subject(s)
Note
Published through SciTech Connect.
08/22/2017.
"9,742,228"
"14/057,591"
Patel Bhageerath Reddy; Kum-Kang Huh; Ayman Mohamed Fawzi El-Refaie; Steven Joseph Galioto.
Funding Information
EE0005573
View MARC record | catkey: 23766244