发明名称 |
Motor driving apparatus having DC link voltage regulating function |
摘要 |
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.
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申请公布号 |
US8384335(B2) |
申请公布日期 |
2013.02.26 |
申请号 |
US201113208553 |
申请日期 |
2011.08.12 |
申请人 |
FANUC CORPORATION;KUROKI WATARU;HARADA TAKASHI;HORIKOSHI SHINICHI;IWASHITA YASUSUKE |
发明人 |
KUROKI WATARU;HARADA TAKASHI;HORIKOSHI SHINICHI;IWASHITA YASUSUKE |
分类号 |
H02P27/04 |
主分类号 |
H02P27/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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