公开(公告)号：US20220200287A1

公开(公告)日：2022-06-23

申请号：US17603261

申请日：2020-04-17

Applicant: GS Yuasa International Ltd.

Inventor： Hiroaki ENDO ,  Masao YOKOYAMA ,  Shinichi HONGO

IPC: H02J3/38 ,  H02J3/32 ,  H02J3/00 ,  H02J3/46

Abstract: A power control apparatus for a distributed power supply interconnected with a power system includes: a conversion circuit that performs reverse conversion of converting power supplied from the distributed power supply from direct current to alternating current and outputting the converted power; and a control device that controls the conversion circuit. The control device changes a target value of received power at a power reception point of the power system on the basis of a predicted value of a power generation amount of the distributed power supply and a predicted value of power consumption of a demand facility, and controls an output of the conversion circuit such that the received power at the power reception point becomes a target value.

公开(公告)号：US20240405549A1

公开(公告)日：2024-12-05

申请号：US18797953

申请日：2024-08-08

Applicant: GS Yuasa International Ltd.

Inventor： Hiroaki ENDO ,  Masao YOKOYAMA ,  Shinichi HONGO

IPC: H02J3/00 ,  H02J3/32 ,  H02J3/38

Abstract: An energy management device 50 for a microgrid S1 that is interconnected to a power system 1 and includes an energy storage apparatus 15. The energy management device 50 calculates a target value of received power of the microgrid, the target value of the received power optimizing energy use efficiency of the microgrid S1, based on a supply and demand prediction of power in the microgrid S1 with upper and lower limits of received power of the microgrid S1 and upper and lower limits of output power of the energy storage apparatus 15 as constraint conditions.

公开(公告)号：US20220416540A1

公开(公告)日：2022-12-29

申请号：US17767264

申请日：2020-09-30

Applicant: GS Yuasa International Ltd.

Inventor： Hiroaki ENDO ,  Masao YOKOYAMA ,  Shinichi HONGO

IPC: H02J3/00 ,  H02J3/32 ,  H02J3/38

Abstract: The present invention pertains to an energy management device 50 of a microgrid S1 which is associated with a power system 1 and is provided with a power storage device 15, the energy management device calculating a target value of received power of the microgrid, the target value optimizing the utilization efficiency of the energy of the microgrid S1, on the basis of power demand prediction in the microgrid S1 by taking, as constraint conditions, the upper and lower limits of the received power of the microgrid S1 and the upper and lower limits of output power of the power storage device.

公开(公告)号：US20220393465A1

公开(公告)日：2022-12-08

申请号：US17755821

申请日：2020-11-06

Applicant: GS Yuasa International Ltd.

Inventor： Hiroaki ENDO ,  Masao YOKOYAMA

IPC: H02J3/00 ,  G06Q50/06 ,  H02J3/32

Abstract: A calculation device 20 is linked with an electric power system 1 and optimizes energy utilization efficiency of a grid S1 including a power storage device 15. The calculation device 20 determines the range of a final charge state of a prediction target section of the power storage device 15 on the basis of power demand prediction for the next and following sections, and assesses, through the optimization calculation for the prediction target section, whether or not the final charge state of the section falls within the range.