Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1986-10-30
1987-11-17
Duggan, Donovan F.
Electricity: motive power systems
Switched reluctance motor commutation control
310 68R, 310268, H02K 2300
Patent
active
047076453
ABSTRACT:
A single-phase brushless motor which can rotate smoothly with minimized torque ripples without generating a cogging torque. A magnet rotor of the motor has north and south magnetic pole and non-magnetized zones successively formed in ranges thereof each having an angular width of 120 degrees in electrical angle, and a stator armature is mounted in an opposing relationship to the magnet rotor and includes an annular stator yoke on which a same number of stator coils for each of 3 phases are wound in a troidal configuration and successively located in an angularly spaced relationship by an electrical angle of 120 degrees. A position detecting element is located for detecting a magnetic pole or non-magnetized portion of the magnet rotor, and in response to signals successively developed from the position detecting element during rotation of the magnet rotor, an energization controlling circuit successively energizes the stator coils to rotate the magnet rotor in a predetermined direction.
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patent: 4651041 (1987-03-01), Shiraki et al.
Miyao Osami
Ohsaka Masayuki
Shiraki Manabu
Duggan Donovan F.
Shicoh Engineering Co. Ltd.
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