Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/276181
Kind Code:
A1
Abstract:
This power conversion device has a power converter for outputting, to a magnet motor, a signal that makes the output frequency, output voltage, and output current of the magnet motor variable and a control unit for controlling the power converter, wherein the control unit calculates a gain of a q-axis magnetic flux component that changes in accordance with the phase of the magnet motor and calculates a command value of a d-axis induced voltage on the basis of the setting value of an induced voltage coefficient, a frequency estimation value or a frequency command value, and the gain of the q-axis magnetic flux component.
Inventors:
TOBARI KAZUAKI (JP)
OHASHI HIRONORI (JP)
WATANABE HIROSHI (JP)
OHYA MASATO (JP)
OHASHI HIRONORI (JP)
WATANABE HIROSHI (JP)
OHYA MASATO (JP)
Application Number:
PCT/JP2021/041409
Publication Date:
January 05, 2023
Filing Date:
November 10, 2021
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
H02P6/10; H02P21/26
Foreign References:
| JP2014166082A | 2014-09-08 | |||
| JP2003199390A | 2003-07-11 | |||
| JP2016201911A | 2016-12-01 | |||
| JP2020005404A | 2020-01-09 | |||
| JP2009017676A | 2009-01-22 | |||
| JP2003199390A | 2003-07-11 |
Attorney, Agent or Firm:
SEIRYO I.P.C. (JP)
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