Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1981-04-02
1982-03-30
Truhe, J. V.
Electricity: motive power systems
Switched reluctance motor commutation control
318138, 310268, H02K 2902
Patent
active
043226663
ABSTRACT:
A permanent magnet motor designed for d-c operation with pulsed current supply through at least two, and preferably four or more stator coils, has a rotor magnetized such that, with respect to 180.degree. electrical, about 120.degree. are magnetized in one magnetic polarity, and the remaining about 60.degree. are magnetized with dual polarity to provide a monopole zone of magnetization and a dipole zone of magnetization, a galvano-magnetic sensing element being exposed to the path of circumferential rotation in which the same polarities of the dipole and monopole zones are contiguous for control of pulse current flow through the windings of the motor. A tachogenerator winding may additionally be included in the air gap, exposed only to the rotary path of one magnetic pole of the dipole zone and the monopole zone.
REFERENCES:
patent: 3299335 (1967-01-01), Wessels
patent: 3873897 (1975-03-01), Muller
patent: 3986086 (1976-10-01), Muller
patent: 4030005 (1977-06-01), Doemen
patent: 4115715 (1978-09-01), Muller
patent: 4211963 (1980-07-01), Muller
patent: 4217508 (1980-08-01), Uzuka
Kasper Horst M.
Moose Richard M.
Papst Motoren GmbH & Co. KG
Truhe J. V.
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