Overmodulation systems and methods for induction motor control

Details Overmodulation systems and methods for induction motor control Overmodulation systems and methods for induction motor control

2005-01-18

2005-01-18

Martin, David (Department: 2837)

Electricity: motive power systems

Induction motor systems

Secondary circuit control

C318S822000, C318S806000, C318S432000

Reexamination Certificate

active

06844701

ABSTRACT:
Systems and methods for controlling an induction motor including detecting a field weakening operation state of the motor, wherein the field weakening operation state is detected when a flux current, Id, in the motor is reduced to a predetermined fraction of its normal, non-voltage limited value. The systems and methods also including an overmodulation operation state of the motor before said field weakening operation state is detected and enabling the overmodulation operation state of the motor after said field weakening operation state is detected.

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