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Title: Electro-mechanical energy conversion system having a permanent magnet machine with stator, resonant transfer link and energy converter controls

Abstract

An electro-mechanical energy conversion system coupled between an energy source and an energy load comprising an energy converter device including a permanent magnet induction machine coupled between the energy source and the energy load to convert the energy from the energy source and to transfer the converted energy to the energy load and an energy transfer multiplexer to control the flow of power or energy through the permanent magnetic induction machine.

Inventors:
;
Publication Date:
Research Org.:
Spellman High Voltage Electronics Corporation, Hauppauge, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175618
Patent Number(s):
6,984,897
Application Number:
10/705,330
Assignee:
Spellman High Voltage Electronics Corporation OSTI
DOE Contract Number:
FG36-03G013138
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION

Citation Formats

Skeist, S. Merrill, and Baker, Richard H. Electro-mechanical energy conversion system having a permanent magnet machine with stator, resonant transfer link and energy converter controls. United States: N. p., 2006. Web.
Skeist, S. Merrill, & Baker, Richard H. Electro-mechanical energy conversion system having a permanent magnet machine with stator, resonant transfer link and energy converter controls. United States.
Skeist, S. Merrill, and Baker, Richard H. Tue . "Electro-mechanical energy conversion system having a permanent magnet machine with stator, resonant transfer link and energy converter controls". United States. doi:. https://www.osti.gov/servlets/purl/1175618.
@article{osti_1175618,
title = {Electro-mechanical energy conversion system having a permanent magnet machine with stator, resonant transfer link and energy converter controls},
author = {Skeist, S. Merrill and Baker, Richard H.},
abstractNote = {An electro-mechanical energy conversion system coupled between an energy source and an energy load comprising an energy converter device including a permanent magnet induction machine coupled between the energy source and the energy load to convert the energy from the energy source and to transfer the converted energy to the energy load and an energy transfer multiplexer to control the flow of power or energy through the permanent magnetic induction machine.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 10 00:00:00 EST 2006},
month = {Tue Jan 10 00:00:00 EST 2006}
}

Patent:

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  • A hybrid permanent magnet dc motor includes three sets of permanent magnets supported by the rotor and three sets of corresponding stators fastened to the surrounding frame. One set of magnets operates across a radial gap with a surrounding radial gap stator, and the other two sets of magnets operate off the respective ends of the rotor across respective axial gaps.
  • A hybrid permanent magnet dc motor includes three sets of permanent magnets supported by the rotor and three sets of corresponding stators fastened to the surrounding frame. One set of magnets operates across a radial gap with a surrounding radial gap stator, and the other two sets of magnets operate off the respective ends of the rotor across respective axial gaps.
  • A permanent magnet electrical machine includes a stator having conductive windings wound thereon and one or more permanent magnets embedded in the stator. A magnetic keeper element is positioned on the stator so as to form a magnetic flux path with the permanent magnets, with the magnetic keeper element closing the magnetic flux path of the permanent magnets by providing a low reluctance flux path to magnetic flux generated by the permanent magnets. A vacuum pressure impregnation (VPI) process is performed on the stator to increase a thermal conductivity of the windings, with the VPI process including a curing stepmore » that is performed at a selected temperature. The magnetic keeper element sets an operating point of the permanent magnets to an internal flux density level above a demagnetization threshold associated with the selected temperature at which the curing step is performed.« less
  • A super-conductive cryogen-cooled electrical machine comprises a rotor disposed within a hollow stator with an annular gap which is evacuated and kept under vacuum by means of at least two shells furnished with ports and position concentrically with a clearance or gap therebetween. One of said shells is supported in a cantilevered fashion by the rotor on the end face thereof to be coaxial therewith and the other being supported in a cantilevered fashion by the stator on the end face thereof opposite said end face of the rotor. The ports in the rotor-supported shells are made so that theirmore » axes form an acute angle alpha with tangent lines drawn to the shell periphery from the points where the port axes intersect the shell envelope in the direction of the rotor rotation, while the ports in the stator supported shells are made so as to form, in a similar way, an angle beta 180*- alpha . The proposed construction of the electrical machine permits increasing the reliability and efficiency of the vacuum heat insulation of the rotor and reducing manufacture and operating costs.« less
  • This document discusses, among other things, a stator with transposition between the windings or coils. The coils are free from transposition to increase the fill factor of the stator slots. The transposition at the end connections between an inner coil and an outer coil provide transposition to reduce circulating current loss. The increased fill factor reduces further current losses. Such a stator is used in a dual rotor, permanent magnet machine, for example, in a compressor pump, wind turbine gearbox, wind turbine rotor.