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

Patent ·
OSTI ID:1175246

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.

Research Organization:
The Regents of the Univ. of California, Oakland, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-48
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Number(s):
6,858,962
Application Number:
09/946,250
OSTI ID:
1175246
Country of Publication:
United States
Language:
English

References (1)

Application of permanent magnets in accelerators and electron storage rings (invited) journal April 1985

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