Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/046728
Kind Code:
A1
Abstract:
In a power conversion device, the vibration and noise of a motor generated due to DC-link voltage ripple are suppressed. An inverter circuit (4) is provided that converts a DC-link voltage (vdc) having ripple components to an AC voltage and outputs the AC voltage to a permanent magnet synchronous motor (7). A control unit (5) is provided that controls the inverter circuit (4) by a vector control and, in a control state in which a fundamental voltage vector does not include zero vector (a voltage vector that makes motor terminal voltage equal to zero), allows the phase of a resultant voltage vector (V0) viewed from a q-axis to ripple according to the ripple, the resultant voltage vector (V0) being obtained from two voltage vectors of a d-axis voltage vector and a q-axis voltage vector of the permanent magnet synchronous motor (7).
Inventors:
ZHOU YUEQIANG
MAEDA TOSHIYUKI
MAEDA TOSHIYUKI
Application Number:
PCT/JP2012/006261
Publication Date:
April 04, 2013
Filing Date:
September 28, 2012
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
H02P21/00; H02M7/48; H02P21/02; H02P21/05; H02P23/02; H02P23/04; H02P23/26; H02P27/04; H02P27/08
Foreign References:
| JP2009273193A | 2009-11-19 | |||
| JP2002223599A | 2002-08-09 | |||
| JP2002051589A | 2002-02-15 | |||
| JP2005130666A | 2005-05-19 | |||
| JPH0191667A | 1989-04-11 | |||
| JPH06153534A | 1994-05-31 |
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
Patent business corporation MAEDA PATENT OFFICE (JP)
Patent business corporation MAEDA PATENT OFFICE (JP)
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