Information processing device and method

Patent metadata

Field	Value
Publication number	US-2025005228-A1
Application number	US-202218698810-A
Country	US
Kind code	A1
Filing date	Oct 6, 2022
Priority date	Oct 25, 2021
Publication date	Jan 2, 2025
Grant date	—

Abstract

An off-grid area selection device that selects an area in which an off-grid in a power distribution system having a plurality of switches arranged therein can be constructed, and an off-grid area selection method executed in the off-grid area selection device are configured to select an area in which an off-grid in the power distribution system can be constructed based on each piece of information regarding a load capacity and a power supply facility for each switch section and facility information of the power distribution system, simulate system stability in the selected area, and determine whether or not the area can comply with a system operation constraint of the power distribution system.

First claim

1 . An information processing device that selects an area in which an off-grid in a power distribution system having a plurality of switches arranged therein is constructible, the information processing device comprising:
an off-grid area selection unit that selects an area in which the off-grid in the power distribution system is constructible based on each piece of information regarding a load capacity and a power supply facility for each switch section and facility information of the power distribution system; and a system stability simulation unit that simulates system stability in the area selected by the off-grid area selection unit and determines whether or not the area is able to comply with a system operation constraint of the power distribution system.

2 . The information processing device according to claim 1 , further comprising a constraint generation unit that generates a constraint for the area to comply with the system operation constraint when the area selected by the off-grid area selection unit is unable to comply with the system operation constraint of the power distribution system,
wherein until the area selected by the off-grid area selection unit complies with the operation constraint of the power distribution system, the off-grid area selection unit repeats a process of adding the constraint generated by the constraint generation unit and selecting the area in which the off-grid in the power distribution system is constructible, a process of simulating the system stability in the area by the system stability simulation unit, and a process of generating the constraint for the area to comply with the system operation constraint by the constraint generation unit.

3 . The information processing device according to claim 2 , wherein the off-grid area selection unit outputs an estimation result of system stability in the area in addition to a selection result of the area in which the final off-grid is constructible.

4 . The information processing device according to claim 2 , wherein the off-grid area selection unit transmits an instruction to open or close the necessary switch to a system of a company that operates the power distribution system in order to construct the off-grid in the finally selected area.

5 . An information processing method executed by an off-grid area selection device that selects an area in which an off-grid in a power distribution system having a plurality of switches arranged therein is constructible, the method comprising:
a first step of selecting an area in which an off-grid in the power distribution system is constructible based on each piece of information regarding a load capacity and a power supply facility for each switch section and facility information of the power distribution system; and a second step of simulating system stability in the selected area and determining whether or not the area is able to comply with a system operation constraint of the power distribution system.

6 . The information processing method according to claim 5 , further comprising a third step of generating a constraint for the selected area to comply with the system operation constraint when the selected area is unable to comply with the system operation constraint of the power distribution system,
wherein the first to third steps are repeated until the area selected in the first step complies with the operation constraint of the power distribution system.

7 . The information processing method according to claim 6 , further comprising a fourth step of outputting an estimation result of system stability in the area in addition to a selection result of the area in which the final off-grid is constructible.

8 . The information processing method according to claim 2 , wherein in the fourth step, the off-grid area selection device transmits an instruction to open or close the necessary switch to a system of a company that operates the power distribution system in order to construct the off-grid in the finally selected area.

Assignees

• Hitachi Ltd

Inventors

• Ono Tetsushi
• Yamamoto Masashi
• Tomobe Osamu
• Kawamura Tsutomu

Classifications

• G06F30/20 Primary

  Design optimisation, verification or simulation (optimisation, verification or simulation of circuit designs G06F30/30) · CPC title

• H02J3/38

  Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel · CPC title

• H02J3/00

  Circuit arrangements for AC mains or AC distribution networks · CPC title