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1. (WO2017149776) POWER CONVERSION DEVICE

Pub. No.:    WO/2017/149776    International Application No.:    PCT/JP2016/056857
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Sat Mar 05 00:59:59 CET 2016
IPC: H02M 3/155
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: KAWAMURA, Mao
川村 真央
Title: POWER CONVERSION DEVICE
Abstract:
Provided is a power conversion device in which magnetically coupled reactors are used, wherein the number of components can be reduced, and not only the magnetically coupled reactors but also an input capacitor can be made small. According to the present invention, the coupling rate of two reactors in magnetically coupled reactors connected between a semiconductor switching element group and an input capacitor for performing power conversion is a set value of, for example, 0.8 or less by taking into account a region in which a ripple current in the input capacitor increases sharply as the coupling rate increases, thereby suppressing current ripple flowing in the input capacitor.