Motor driving apparatus

Details Motor driving apparatus Motor driving apparatus

2007-09-25

2007-09-25

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Switched reluctance motor commutation control

C318S721000, C318S823000, C318S608000, C318S799000

Reexamination Certificate

active

11123509

ABSTRACT:
A Motor driving apparatus adjusts activation start timing of high-side activation control signals UU, VU, WU and the low-side activation control signals UL, VL, and WL with a state determination signal SJ in an activation controller40, in the period from starting to the time when rotor rotating speed reaches a predetermined value, sets the activation start timing earlier than in normal times to perform leading phase activation control, and in normal times when the rotor rotating speed is a predetermined value or more, controls activation start timing in efficient and optimum phase. Hence, the motor driving apparatus can carry out stable PWM sensorless starting without any starting failure such as oscillation, loss of synchronism and reverse rotation and shorten starting time.

REFERENCES:
patent: 5923133 (1999-07-01), Menegoli
patent: 6661192 (2003-12-01), Copeland
patent: 04109891 (1992-04-01), None
patent: 04-308495 (1992-10-01), None
patent: 07087783 (1995-03-01), None
patent: 2000-324873 (2000-11-01), None
patent: 2002-374690 (2002-12-01), None
patent: 2004-048928 (2004-02-01), None

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