Title:
DCリンク電圧の安定化機能を有するモータ駆動装置
Document Type and Number:
Japanese Patent JP4955806
Kind Code:
B2
Abstract:
A motor driving apparatus comprises: an AC/DC converter which converts AC voltage supplied from an AC power source into DC voltage through PWM switching control of a power switching device; and a DC/AC converter which converts the DC voltage into variable-frequency AC voltage for driving a motor in a controlled manner. The AC/DC converter includes: a control unit which generates, based on an error between the DC voltage and a DC voltage command value, a PWM signal for the PWM switching control of the power switching device; and a frequency/gain varying unit which sets the frequency of the PWM signal to be generated by the control unit and a control gain in the control unit higher than their normal levels during a period in which a load in the DC/AC converter varies.
Inventors:
Kuroki Wataru
Takashi Harada
Horikoshi Shinichi
Heisuke Iwashita
Takashi Harada
Horikoshi Shinichi
Heisuke Iwashita
Application Number:
JP2010197925A
Publication Date:
June 20, 2012
Filing Date:
September 03, 2010
Export Citation:
Assignee:
FANUC Corporation
International Classes:
H02P27/06; H02M7/48; H02P21/36; H02P27/08
Domestic Patent References:
| JP10257773A | ||||
| JP8149855A | ||||
| JP2001037248A |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kei Mori
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kei Mori