Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1987-12-28
1989-05-30
Ro, Bentsu
Electricity: motive power systems
Switched reluctance motor commutation control
318138, 318439, H02P 602
Patent
active
048354481
ABSTRACT:
A control operates a permanent magnet brushless DC motor utilizing a phase advance signal to control motor torque. Input signals to the motor comprise a phase advance command signal and rotor position signals. The control provides switching signals to drive an inverter switch circuit to energize the motor. A start circuit is responsive to an analog rotor position signal and develops switching signals according to a preselected pattern stored in a memory. A run circuit compares a periodic sawtooth signal representing motor speed and a maximum desired phase advance, to a phase advance command signal to develop switching signals. The control switches from the start circuit to the run circuit at a preselected speed.
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patent: 4608527 (1986-08-01), Glennon et al.
patent: 4638224 (1987-01-01), Gritter
patent: 4751438 (1988-06-01), Markunas
Dhyanchand P. John
Dishner Bryan W.
Ro Bentsu
Sundstrand Corporation
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