Electric motor control apparatus

Details Electric motor control apparatus Electric motor control apparatus

2011-01-11

2011-01-11

Ro, Benstu (Department: 2837)

Electricity: motive power systems

Positional servo systems

'reset' systems

C318S611000, C318S629000

Reexamination Certificate

active

07868577

ABSTRACT:
In order to simultaneously realize an improvement in disturbance suppression force of an electric motor control apparatus and vibration suppression of a load machine, a velocity control circuit receives a velocity command signal as a target value of velocity of an electric motor and a corrected velocity signal, obtained by correcting a velocity signal with a velocity correction signal, and outputs a torque command signal specifying target torque of the electric motor driving the load machine. A vibration suppression circuit outputs a velocity correction signal, based on an acceleration signal, indicating acceleration of the load machine. A transfer function from the acceleration signal to the torque command signal is obtained by multiplying a transfer function from a position signal, indicating position of the electric motor to the torque command signal, by a proportion characteristic having a specified gain and integration characteristic.

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