Method of and apparatus for driving three-phase D.C. brushless m

Details Method of and apparatus for driving three-phase D.C. brushless m Method of and apparatus for driving three-phase D.C. brushless m

1988-01-28

1989-09-05

Shoop, Jr., William M.

Electricity: motive power systems

Switched reluctance motor commutation control

318138, H02K 2900

Patent

active

048641987

ABSTRACT:
A three-phase D.C. brushless motor having a rotor and stator windings of three phases can be driven by alternately switching to the step of causing currents to flow through stator windings of only two phases among the stator windings of three phases or to the step of causing currents to flow through the stator windings of all the three phases each time the rotor rotates 30 degrees in terms of an electrical rotational angle, whereby torque fluctuation can be reduced.

REFERENCES:
patent: 4309643 (1982-01-01), Akamatsu
patent: 4382214 (1983-05-01), Ban et al.
patent: 4392099 (1983-07-01), Kuniyoshi
patent: 4686437 (1987-08-01), Langley et al.
patent: 4743815 (1988-05-01), Gee et al.

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