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

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

Patent:

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