Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1986-07-16
1988-05-24
Ro, Bentsu
Electricity: motive power systems
Switched reluctance motor commutation control
318138, 318439, 310 68R, 310267, H02K 2900, H02P 602
Patent
active
047468440
ABSTRACT:
Novel winding arrangements and control circuits for brushless direct-current motors are described. Stator windings are arranged to produce an essentially continuous torque in each winding phase from D.C. current pulses each of about one-half the duration of a two-pole cycle or rotor movement. An electronic control circuit comprises one electronic power switch for each winding group or winding phase in the stator windings. One or two D.C. current pulses are applied to the windings for each two-pole cycle of rotor movement, depending on the arrangement of the coils. CEMF voltage generated in the coils is sensed and a change in the polarity thereof is used to control switching of the D.C. current between coils.
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MacKelvie John S.
Whiteley Eric
Maghemite Inc.
Ro Bentsu
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