US 12,283,899 B2
Power conversion device
Tenjiro Hiwatari, Tokyo (JP); Sota Sano, Tokyo (JP); Akira Satake, Tokyo (JP); Kiyoshi Ohishi, Nagaoka (JP); Yuki Yokokura, Nagaoka (JP); and Yuto Kobayashi, Nagaoka (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP); and NATIONAL UNIVERSITY CORPORATION MAGAOKA UNIVERSITY OF TECHNOLOGY, Nagaoka (JP)
Appl. No. 18/033,586
Filed by Mitsubishi Electric Corporation, Tokyo (JP); and National University Corporation Nagaoka University of Technology, Nagaoka (JP)
PCT Filed Nov. 18, 2021, PCT No. PCT/JP2021/042379
§ 371(c)(1), (2) Date Apr. 25, 2023,
PCT Pub. No. WO2022/107838, PCT Pub. Date May 27, 2022.
Claims priority of application No. PCT/JP2020/043320 (WO), filed on Nov. 20, 2020; and application No. PCT/JP2020/043321 (WO), filed on Nov. 20, 2020.
Prior Publication US 2023/0402942 A1, Dec. 14, 2023
Int. Cl. H02M 7/5395 (2006.01); H02M 1/00 (2006.01); H02P 27/08 (2006.01)
CPC H02M 7/5395 (2013.01) [H02M 1/0058 (2021.05); H02P 27/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power conversion device, comprising:
an electric power conversion circuitry including a plurality of switching devices, for converting direct-current power into alternating-current power in accordance with a switching state quantity of the plurality of switching devices each, and for supplying the alternating-current power into a load;
a voltage output calculation device for calculating a voltage output value on a multi-phase alternating current supplied from the electric power conversion circuitry into the load, on a basis of a switching state quantity in the electric power conversion circuitry;
an integration value calculation device for acquiring through calculation a voltage reference integration value and a voltage output integration value by integrating a voltage reference value on the multi-phase alternating current supplied from the electric power conversion circuitry and a voltage output value on a multi-phase alternating current calculated by said voltage output calculation device, respectively; and
a switching determination device for determining a switching state quantity in the electric power conversion circuitry by using the voltage reference integration value and the voltage output integration value, and for outputting the switching state quantity being determined.