Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1993-04-20
1996-03-26
Ro, Bentsu
Electricity: motive power systems
Switched reluctance motor commutation control
318138, 318439, H02P 602
Patent
active
RE0351890
ABSTRACT:
Drive arrangement comprising a collectorless d.c. motor and a rpm-regulating arrangement. The motor comprises a permanent-magnet rotor and a stator winding arrangement. The latter is connected to a current source in dependence upon angular-position signals by means of an electrical commutation arrangement. The rpm-regulating arrangement produces a regulator signal that is a function of the deviation of the rotor's actual rpm from a desired rpm. There is provided an arrangement for modulating the regulator signal in synchronism with the rotation of the rotor. As a result of the action of the modulation arrangement, the current flowing in the stator winding arrangement between each two successive commutation operations initially builds up beginning at a point in time at least approximately coinciding with the point in time at which the commutation occurs, and the drops off again until a point in time at least approximately coinciding with the point in time at which the next-following commutation occurs.
REFERENCES:
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patent: 3840761 (1974-10-01), Muller
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German language article "Zweipulsige kollektorlose Gleichstrommotoren" by Dr. Ing. Rolf Mueller published in magazine asr-digest fur angewandte Antriebstechnik, vol. 1, Feb., 1977 (translation included).
Papst Licensing GmbH
Ro Bentsu
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