Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/105204
Kind Code:
A1
Abstract:
This power conversion device has: a harmonic voltage generation unit for superimposing, according to a switching signal, dc-axis and qc-axis harmonic voltages on dc-axis and qc-axis voltage commands; and an inductance estimation unit for estimating dc-axis and qc-axis inductances on the basis of dc-axis and qc-axis harmonic current, the amplitude values of the harmonic voltages, and the switching signal.
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Inventors:
TOBARI KAZUAKI (JP)
IWAJI YOSHITAKA (JP)
HADINATA AGNES (JP)
ONUMA YUSAKU (JP)
SUGIMOTO TAKUYA (JP)
NAKAMURA ATSUHIKO (JP)
WATANABE HIROSHI (JP)
TAGUCHI YOSHIYUKI (JP)
IWAJI YOSHITAKA (JP)
HADINATA AGNES (JP)
ONUMA YUSAKU (JP)
SUGIMOTO TAKUYA (JP)
NAKAMURA ATSUHIKO (JP)
WATANABE HIROSHI (JP)
TAGUCHI YOSHIYUKI (JP)
Application Number:
PCT/JP2019/021187
Publication Date:
May 28, 2020
Filing Date:
May 29, 2019
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
H02M7/48; H02P21/16; H02P21/18; H02P21/22; H02P21/24; H02P23/14; H02P25/026; H02P29/40
Foreign References:
| JPH11332279A | 1999-11-30 | |||
| JP2010119227A | 2010-05-27 | |||
| JP2007110837A | 2007-04-26 | |||
| JP2005130691A | 2005-05-19 | |||
| JP2008092657A | 2008-04-17 |
Other References:
"The transactions of the Institute of Electrical Engineers of Japan. D", vol. 123, 2003, INDUSTRY APPLICATIONS SOCIETY, article "Initial Rotor Position Estimation of Interior Permanent Magnet Synchronous Motor", pages: 140 - 148
See also references of EP 3910782A4
See also references of EP 3910782A4
Attorney, Agent or Firm:
SEIRYO I.P.C. (JP)
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