Title:
POWER CONVERSION DEVICE AND POWER CONVERSION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/179662
Kind Code:
A1
Abstract:
The present invention relates to a method in which, when converting power supplied from a power supply to a power for driving an AC rotating electric machine, an output voltage is raised with the increase of the rotational speed of the AC rotating electric machine and then the output voltage is lowered with the increase of the rotational speed. According to the present invention, the loss of the AC rotating electric machine can be minimized in a high rotational speed operation region, so that the AC rotating electric machine can be operated with high efficiency.
Inventors:
SUGIMOTO SHINJI (JP)
ANDO MASATO (JP)
KOJIMA TETSUO (JP)
ANDO MASATO (JP)
KOJIMA TETSUO (JP)
Application Number:
PCT/JP2017/047401
Publication Date:
October 04, 2018
Filing Date:
December 28, 2017
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H02P27/06; H02M3/155; H02M3/28; H02M7/12; H02M7/48
Foreign References:
| JP2005027410A | 2005-01-27 | |||
| JP2000224860A | 2000-08-11 |
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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