公开(公告)号：US20240162799A1

公开(公告)日：2024-05-16

申请号：US18551127

申请日：2021-03-23

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kazumasa IKEDA ,  Takahiro SAEKI

IPC: H02M1/00 ,  H02P21/22 ,  H02P27/08

CPC classification number: H02M1/0009 ,  H02M1/0012 ,  H02P21/22 ,  H02P27/085

Abstract: To provide an electric power conversion device that carries out high-speed transmission of current values of a plurality of inverters, and a control method for the electric power conversion device. The electric power conversion device includes a main controller, a plurality of subcontrollers, and a relay unit. The main controller generates and outputs a control command that is a target value for controlling electric power conversion carried out by a plurality of electric power conversion units that supply and receive power to and from a load based on state quantity information related to a state quantity of each of the plurality of electric power conversion units. The subcontrollers are provided for each of the electric power conversion units to control the electric power conversion units based on the control command and to acquire and output the state quantities. The relay unit compresses information of the state quantities output from of subcontrollers.

公开(公告)号：US20240006974A1

公开(公告)日：2024-01-04

申请号：US18251350

申请日：2021-10-26

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Shinsuke KAJIWARA ,  Mio KISAKI ,  Taiga AKIYAMA ,  Satoshi SUESHIMA ,  Takeshi HORIBE ,  Kazumasa IKEDA

IPC: H02M1/00

CPC classification number: H02M1/0009 ,  H02M1/0067

Abstract: A power conversion system comprises: a plurality of power conversion devices; and a master controller capable of communicating with the plurality of power conversion devices by a serial communication channel. The master controller transmits the same control command to the plurality of power conversion devices by serial communication via the serial communication channel, and the plurality of power conversion devices each perform power conversion from the primary side to the secondary side on the basis of the same control command.