Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/152860
Kind Code:
A1
Abstract:
A power conversion device (100) comprises: a DC/DC converter (40) that transforms, according to a voltage command, a DC voltage input from a first DC circuit (1) and outputs the transformed DC voltage to a second DC circuit (2); and a control unit (50) that controls switching of semiconductor switching elements (21, 22) on the basis of a comparison of a modulation wave, which is a voltage command, and a carrier wave. In order to ensure both a first cycle T1 in which the semiconductor switching elements (21, 22) are not switched over one cycle of the carrier wave and a second cycle T2 in which the semiconductor switching elements (21, 22) are switched at any timing within one cycle of the carrier wave, the control unit (50) adjusts, according to a value of the modulation wave, a first period in which the value of the modulation wave is increased such that the modulation wave exceeds the carrier wave.
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Inventors:
TSURUTA RYOJI (JP)
Application Number:
PCT/JP2022/005290
Publication Date:
August 17, 2023
Filing Date:
February 10, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M3/155
Domestic Patent References:
| WO2021038823A1 | 2021-03-04 |
Foreign References:
| US20160315540A1 | 2016-10-27 | |||
| JP2021111989A | 2021-08-02 |
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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