Sensorless motor drive apparatus and method for protecting...

Details Sensorless motor drive apparatus and method for protecting... Sensorless motor drive apparatus and method for protecting...

2006-11-21

2006-11-21

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Switched reluctance motor commutation control

C318S721000, C318S700000, C318S714000, C318S132000, C318S434000

Reexamination Certificate

active

07138777

ABSTRACT:
A sensorless motor drive apparatus and a method for protecting and controlling the same. The sensorless motor drive apparatus includes a unit for determining the presence or absence of a position estimation error of a rotor contained in a motor using a current value applied to the motor and a position estimation angle of the rotor. Therefore, the sensorless motor drive apparatus determines the presence or absence of the position estimation error of the rotor without using a sensor, so that it reduces production costs, prevents the motor from generating a faulty operation, and prevents a compressor including the motor from being damaged.

REFERENCES:
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patent: 5585709 (1996-12-01), Jansen et al.
patent: 6137258 (2000-10-01), Jansen
patent: 6163127 (2000-12-01), Patel et al.
patent: 6339308 (2002-01-01), Shinnaka
patent: 6462492 (2002-10-01), Sakamoto et al.
patent: 6628099 (2003-09-01), Iwaji et al.

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