Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/084598
Kind Code:
A1
Abstract:
In a DAB circuit constituted by a first bridge (10) and a second bridge (20), a boost circuit is shared by connecting reactors (L1, L2) between a storage battery (1) and the first bridge (10). In each of the legs (11, 12) of the first bridge (10), in order to increase the absolute values of reactor currents (L1, L2), the on-period of one switching element which is one of switching elements (Q11H, Q12H) on the high-voltage side and switching elements (Q11L, Q12L) on the low-voltage side is set, after which the on-period of the other switching element is set. The length of the on-period of the one switching element is set according to the control command value of a DC voltage V1. The length of the on-period of the other switching element is set to a length of time until the absolute values of the reactor currents (L1, L2) that have increased during the on-period of the one switching element return to zero.
Inventors:
KAWAI YU (JP)
IZUMI KIKUO (JP)
ITOH JUNICHI (JP)
WATANABE HIROKI (JP)
IZUMI KIKUO (JP)
ITOH JUNICHI (JP)
WATANABE HIROKI (JP)
Application Number:
PCT/JP2021/041176
Publication Date:
May 19, 2023
Filing Date:
November 09, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
NATIONAL UNIV CORPORATION NAGAOKA UNIV OF TECHNOLOGY (JP)
NATIONAL UNIV CORPORATION NAGAOKA UNIV OF TECHNOLOGY (JP)
International Classes:
H02M3/28
Foreign References:
| JP2016152687A | 2016-08-22 | |||
| JP2020108196A | 2020-07-09 | |||
| JP2016101089A | 2016-05-30 | |||
| CN111342665A | 2020-06-26 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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