Electricity: motive power systems – Positional servo systems – 'reset' systems
Reexamination Certificate
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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Ikeda Hidetoshi
Marushita Yoshihiro
Matsumoto Koki
Leydig , Voit & Mayer, Ltd.
Mitsubishi Electric Corporation
Ro Benstu
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