Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/211694
Kind Code:
A1
Abstract:
A power conversion device (101) is provided with: a first smoothing circuit (105) connected to a first electric device (102); a second smoothing circuit (109) connected to a second electric device (106); a first bridge circuit (110) connected to the first smoothing circuit (105); a transformer (112) having a primary side to which a third electric device (111) is connected and a secondary side to which the first bridge circuit (110) and the second smoothing circuit (109) are connected; and a controller (113). The controller (113) controls the power exchange between the first and second electric devices (102, 106) by varying the duty ratio of the first bridge circuit (110) at a higher frequency than the cutoff frequencies of the first and second smoothing circuits (105, 109) to control an invariable component of the duty ratio and also controls the power exchange between the first electric device (102) and the third electric device (111) and between the second electric device (106) and the third electric device (111) by controlling the phase of a variable component of the duty ratio.
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Inventors:
WADA TOSHIHIRO (JP)
ISHIHARA HIROKI (JP)
ISHIHARA HIROKI (JP)
Application Number:
PCT/JP2017/018870
Publication Date:
November 22, 2018
Filing Date:
May 19, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M3/155; H02M7/797
Foreign References:
| JP2009225647A | 2009-10-01 | |||
| JP2016119776A | 2016-06-30 | |||
| JP2015122903A | 2015-07-02 |
Attorney, Agent or Firm:
MURAKAMI Keigo et al. (JP)
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