POWER CONVERSION DEVICE

WIPO Patent Application WO/2022/107838

A1

A power conversion device (100) comprises: a power conversion unit (1) for converting direct-current power into alternating-current power in accordance with a switching state quantity determined by a combination of the switching parameters of a plurality of switching elements and supplying the power to a load (3); a voltage output calculation unit (11) for calculating a voltage output value from the power conversion unit (1) on the basis of the switching state quantity; an integral calculation unit (12) for integrating a voltage command value and the voltage output value calculated by the voltage output calculation unit (11) and determining a voltage command integral and a voltage output integral; a switching update determination unit (13) for outputting an update signal of the switching state quantity on the basis of the voltage command integral, the permitted value of the voltage command integral, and the voltage output integral; and a switching determination table (14) for determining the switching state quantities of the plurality of switching elements of the power conversion unit (1) on the basis of the voltage command integral and the voltage output integral, which are determined by the integral calculation unit (12), and the update signal of the switching update determination unit (13).

HIWATARI TENJIRO (JP)
SANO SOTA (JP)
SATAKE AKIRA (JP)
OHISHI KIYOSHI (JP)
YOKOKURA YUKI (JP)
KOBAYASHI YUTO (JP)

PCT/JP2021/042379

May 27, 2022

November 18, 2021

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MITSUBISHI ELECTRIC CORP (JP)
NATIONAL UNIV CORPORATION NAGAOKA UNIV OF TECHNOLOGY (JP)

H02M7/48

JPH1189244A	1999-03-30
JPH09182439A	1997-07-11

PALMO PATENT FIRM, P.C. (JP)

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