Design features of high speed PM machines

The high-speed permanent magnet (PM) machine has been widely investigated since it has small size, high efficiency and power density. However, due to the high rotor speed and high frequency of the stator flux variation, the design of a high-speed machine is quite different from designing a conventio...

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Bibliographic Details
Published inSixth International Conference on Electrical Machines and Systems, 2003. ICEMS 2003 Vol. 1; pp. 66 - 70 vol.1
Main Authors Fengxiang Wang, Ming Zong, Wenpeng Zheng, Enlu Guan
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Elementary particle vacuum
Frequency
Magnetic materials
Permanent magnets
Power generation
Rotors
Stator cores
Stator windings
Torque
Turbines
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Summary:The high-speed permanent magnet (PM) machine has been widely investigated since it has small size, high efficiency and power density. However, due to the high rotor speed and high frequency of the stator flux variation, the design of a high-speed machine is quite different from designing a conventional machine with low speed and low frequency. As a example, the design features of a high-speed PM generator driven by micro turbines are introduced in this paper. The choice of rotor structure, the design of stator core and winding, the bearing structure and the control system are discussed in some details.
ISBN:750626210X
9787506262101