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Patent Searching and Data


Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/065447
Kind Code:
A1
Abstract:
According to the present invention, in a first section where an instantaneous value of a voltage source (|Vin|) is higher than a DC voltage command value Vdc*, a first conversion operation of turning off a second switch (Sc), selecting a first duty drec and a third duty dz such that the DC voltage Vdc input to a current source (Idc) becomes equal to the DC voltage command value Vdc*, and supplying power from the voltage source (|Vin|) to the current source (Idc) is performed, and at the same time, a capacitor (C4) is charged by a rectified voltage via a clamp diode (D42). Meanwhile, in a second section where the instantaneous value of the voltage source (|Vin|) is equal to or less than the DC voltage command value Vdc*, a second conversion operation of turning off a first switch (Srec), selecting a second duty dc and the third duty dz such that the DC voltage Vdc input to the current source (Idc) becomes equal to the DC voltage command value Vdc*, and supplying power from the capacitor (C4) to the current source (Idc) is performed.

Inventors:
SAKAKIBARA, Kenichi (Umeda Center Building, 4-12, Nakazaki-Nishi 2-Chome, Kita-ku, Osaka-sh, Osaka 23, JP)
TANIGUCHI, Tomoisa (Umeda Center Building, 4-12, Nakazaki-Nishi 2-Chome, Kita-ku, Osaka-sh, Osaka 23, JP)
Application Number:
JP2020/034748
Publication Date:
April 08, 2021
Filing Date:
September 14, 2020
Export Citation:
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Assignee:
DAIKIN INDUSTRIES, LTD. (4-12 Nakazaki-Nishi 2-Chome, Kita-ku, Osaka-sh, Osaka 23, JP)
International Classes:
H02M7/48; H02M7/12
Attorney, Agent or Firm:
YAMAO, Norihito et al. (Umeda Hankyu Bldg. Office Tower 8-1, Kakuda-cho, Kita-ku, Osaka-sh, Osaka 17, JP)
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