Title:
FLUID TRANSFER SYSTEM, AND METHOD FOR CONTROLLING FLUID TRANSFER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/008758
Kind Code:
A1
Abstract:
[Problem] To provide a fluid transfer system with which it is possible to suppress a deterioration in efficiency.
[Solution] A pump system 1 comprises: a pump 3 for transferring a fluid; a motor 4 which is provided with a plurality of windings 41, 42 and which drives the pump 3; a winding switch 6 for switching a state of connection of the plurality of windings 41, 42; an electric power converting unit 5 which supplies electric power to the motor 4 on the basis of a speed command Sp to control the speed of the pump 3; and a control unit 8 which controls the winding switch 6 in such a way as to switch the state of connection of the plurality of windings 41, 42 on the basis of the speed command Sp.
Inventors:
SATO SADAYUKI (JP)
MAEMURA AKIHIKO (JP)
IKE HIDEAKI (JP)
MURAOKA JIRO (JP)
MAEMURA AKIHIKO (JP)
IKE HIDEAKI (JP)
MURAOKA JIRO (JP)
Application Number:
PCT/JP2017/025002
Publication Date:
January 10, 2019
Filing Date:
July 07, 2017
Export Citation:
Assignee:
YASKAWA ELECTRIC CORP (JP)
International Classes:
F04D15/00; H02P27/00
Foreign References:
| JP2016085005A | 2016-05-19 | |||
| JPH01147698U | 1989-10-12 | |||
| JP2016165187A | 2016-09-08 |
Attorney, Agent or Firm:
MASUDA Hirofumi et al. (JP)
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