Title:
INVERTER DEVICE, CONSTRUCTION MACHINE, AND MOTOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2014/132731
Kind Code:
A1
Abstract:
An inverter device for controlling a permanent magnet motor is provided with: a voltage vector calculation unit that outputs a voltage command; a stabilizing compensation calculation unit that calculates a correction amount for reducing the current control gain with respect to a rotation frequency component of the permanent magnet motor; a correction calculation unit that corrects the voltage command that is output from the voltage vector calculation unit on the basis of the correction amount calculated by the stabilizing compensation calculation unit; and a power conversion unit that converts DC power to AC power on the basis of the voltage command that has been corrected by the correction calculation unit and outputs AC power to the permanent magnet motor.
Inventors:
TOBARI KAZUAKI (JP)
KURAHASHI MITSURU (JP)
KURAHASHI MITSURU (JP)
Application Number:
PCT/JP2014/051916
Publication Date:
September 04, 2014
Filing Date:
January 29, 2014
Export Citation:
Assignee:
HITACHI IND EQUIPMENT SYS (JP)
International Classes:
H02P27/04; H02P21/00; H02P21/13; H02P21/22
Foreign References:
| JP2012218498A | 2012-11-12 | |||
| JP2011078277A | 2011-04-14 | |||
| JP2003018899A | 2003-01-17 | |||
| JP2003189652A | 2003-07-04 | |||
| JP2008173006A | 2008-07-24 | |||
| JP2013039133A | 2013-02-28 |
Other References:
See also references of EP 2963804A4
Attorney, Agent or Firm:
NAGAI, Fuyuki (JP)
Fuyuki Nagai (JP)
Fuyuki Nagai (JP)
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