Motor controller and motor controlling method

Details Motor controller and motor controlling method Motor controller and motor controlling method

2007-10-02

2007-10-02

Masih, Karen (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C318S727000, C318S432000

Reexamination Certificate

active

10572676

ABSTRACT:
In a case where a motor cannot follow up a position designated by a position instruction in a velocity operation mode, when an operation is performed in a constant power operating region, or when a voltage is saturated, a limit is put on a position deviation in a motor control apparatus. A correction position deviation amount, by which the motor cannot follow up the position instruction, is subtracted from the position deviation. Further, a motor position-within-one-revolution deviation in the subtracted correction position deviation amount is corrected in a region in which the characteristic of torque is improved. Consequently, the followingness of the motor to the motor position-within-one-revolution in the position designated by the position instruction is ensured.

REFERENCES:
patent: 2002/0057069 (2002-05-01), Kushida
patent: 3-82385 (1991-04-01), None
patent: 2001-62678 (2001-03-01), None
patent: WO 02/39574 (2002-05-01), None
patent: WO 03/085816 (2003-10-01), None

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