Halbach array generator/motor having an automatically regulated output voltage and mechanical power output

Title: Halbach array generator/motor having an automatically regulated output voltage and mechanical power output

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Abstract

A motor/generator having its stationary portion, i.e., the stator, positioned concentrically within its rotatable element, i.e., the rotor, along its axis of rotation. The rotor includes a Halbach array. The stator windings are switched or commutated to provide a DC motor/generator much the same as in a conventional DC motor/generator. The voltage and power are automatically regulated by using centrifugal force to change the diameter of the rotor, and thereby vary the radial gap in between the stator and the rotating Halbach array, as a function of the angular velocity of the rotor.

Inventors:: Post, Richard F.

Issue Date:: 2005-02-22

Research Org.:: The Regents of the Univ. of California, Oakland, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1175246

Patent Number(s):: 6858962

Application Number:: 09/946,250

Assignee:: The Regents of the University of California (Oakland, CA)

Patent Classifications (CPCs):: H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS

H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES

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H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS
H02P9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output
H02P25/26 - with arrangements for controlling secondary impedance

H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
H02K1/2786 - {Outer rotor}
H02K21/025 - {by varying the thickness of the air gap between field and armature}
H02K21/22 - with magnets rotating around the armatures, e.g. flywheel magnetos

H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS
H02P9/40 - by variation of reluctance of magnetic circuit of generator

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DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Post, Richard F. Halbach array generator/motor having an automatically regulated output voltage and mechanical power output.  United States: N. p., 2005. 
        Web.

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                    Post, Richard F. Halbach array generator/motor having an automatically regulated output voltage and mechanical power output.  United States.

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                    Post, Richard F. Tue .  
        "Halbach array generator/motor having an automatically regulated output voltage and mechanical power output".  United States.  https://www.osti.gov/servlets/purl/1175246.

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@article{osti_1175246,

  title        = {Halbach array generator/motor having an automatically regulated output voltage and mechanical power output},

  author       = {Post, Richard F.},

  abstractNote = {A motor/generator having its stationary portion, i.e., the stator, positioned concentrically within its rotatable element, i.e., the rotor, along its axis of rotation. The rotor includes a Halbach array. The stator windings are switched or commutated to provide a DC motor/generator much the same as in a conventional DC motor/generator. The voltage and power are automatically regulated by using centrifugal force to change the diameter of the rotor, and thereby vary the radial gap in between the stator and the rotating Halbach array, as a function of the angular velocity of the rotor.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2005},

  month        = {2}

}

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Halbach array generator/motor having mechanically regulated output voltage and mechanical power output

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