Driving device of motor

Details Driving device of motor Driving device of motor

2006-09-19

2008-05-20

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Switched reluctance motor commutation control

C318S430000, C318S720000

Reexamination Certificate

active

07375482

ABSTRACT:
An object is to provide a driving device capable of smoothly shifting from a starting state to a sensor-less vector control, in a case where the device drives a motor by the sensor-less vector control, and the device includes a voltage detecting circuit which detects an induced electromotive voltage of the motor. A control circuit starts the motor by rectangular wave control. A magnetic pole position of a rotor is detected based on an induced electromotive voltage of one remaining phase of the motor detected by the voltage detecting circuit. The control circuit controls a main inverter circuit based on the detected magnetic pole position, and accelerates the motor by the rectangular wave control. In a case where a predetermined shift revolution speed is reached, the control circuit shifts to vector control by the sensor-less in which the magnetic pole position detected during the rectangular wave control is used as an initial value.

REFERENCES:
patent: 4641066 (1987-02-01), Nagata et al.
patent: 4712050 (1987-12-01), Nagasawa et al.
patent: 5177416 (1993-01-01), Inaji et al.
patent: 5223772 (1993-06-01), Carobolante
patent: 5254914 (1993-10-01), Dunfield et al.
patent: 5640073 (1997-06-01), Ikeda et al.
patent: 7071640 (2006-07-01), Kurosawa et al.
patent: 2004-48886 (2004-02-01), None
patent: 3612636 (2004-11-01), None

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