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Patent Searching and Data


Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/088131
Kind Code:
A1
Abstract:
In the present invention, a control unit (50) controls the switching operation of a power conversion unit (13). The control unit (50) monitors the indicator value that correlates with outside disturbances that distort the input current (idc) fed to the power conversion unit (13) and the control unit compensates for the amount by which the switching operation of the power conversion unit (13) is controlled, such compensation carried out in accordance with at least the frequency component that is closest to the resonant frequency (fLC) of a direct current part (12) and that is from among multiple frequency components which are included in fluctuations of the indicator value and which correspond to integral multiples of source frequency (fp) of an alternating current source (20).

Inventors:
ZHOU Yueqiang (Umeda Center Building, 4-12, Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
KAWASHIMA Reiji (Umeda Center Building, 4-12, Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
Application Number:
JP2018/040402
Publication Date:
May 09, 2019
Filing Date:
October 30, 2018
Export Citation:
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Assignee:
DAIKIN INDUSTRIES, LTD. (Umeda Center Building, 4-12 Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, 〒5308323, JP)
International Classes:
H02M7/48
Domestic Patent References:
WO2009133700A12009-11-05
Foreign References:
JP2015043659A2015-03-05
JP2015195714A2015-11-05
JP2009232591A2009-10-08
Attorney, Agent or Firm:
MAEDA & PARTNERS (Shin-Daibiru Bldg. 23F, 2-1 Dojimahama 1-chome, Kita-ku, Osaka-sh, Osaka 04, 〒5300004, JP)
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