发明名称 |
Motor drive device with function of switching to power regenerative operation mode |
摘要 |
A motor drive device including a converter for a power running operation and a power regenerative operation. The converter has power switching elements, a first power regenerative control unit for controlling the power switching elements in the power regenerative operation by using pulse width modulation signal whose pulse width changes with a value indicated by a command signal; a second power regenerative control unit for controlling the power switching elements in the power regenerative operation to generate respective power regenerative currents in a phase representing the maximum potential among three phases of a three-phase AC power supply and a phase representing the minimum potential among the three phases, and a power regenerative operation switching unit for switching a control of the power switching elements in the power regenerative operation between a control by the first power regenerative control unit and a control by the second power regenerative control unit. |
申请公布号 |
US8283880(B2) |
申请公布日期 |
2012.10.09 |
申请号 |
US201113152573 |
申请日期 |
2011.06.03 |
申请人 |
IWASHITA YASUSUKE;HORIKOSHI SHINICHI;HARADA TAKASHI;MIZUKAMI SHINICHI;FANUC CORPORATION |
发明人 |
IWASHITA YASUSUKE;HORIKOSHI SHINICHI;HARADA TAKASHI;MIZUKAMI SHINICHI |
分类号 |
H02P3/18 |
主分类号 |
H02P3/18 |
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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