Electrical grid protection using grid components

Patent metadata

Field	Value
Publication number	US-2025219408-A1
Application number	US-202419002545-A
Country	US
Kind code	A1
Filing date	Dec 26, 2024
Priority date	Dec 28, 2023
Publication date	Jul 3, 2025
Grant date	—

Abstract

Methods, systems, and apparatus, including computer programs encoded on a storage device, for protecting an electrical grid are disclosed. A method includes obtaining electrical grid data corresponding to grid reliability factors and grid safety factors; determining, based on an analysis of the grid reliability factors and the grid safety factors, one or more operating parameters for at least one electrical protection device; and controlling the at least one electrical protection device based on the one or more operating parameters.

First claim

What is claimed is:

1 . A computer-implemented electrical grid dynamic protection method comprising:
obtaining electrical grid data corresponding to grid reliability factors and grid safety factors relevant to at least one electrical protection device located in a particular region of an electrical grid; determining, based on an analysis of the grid reliability factors and the grid safety factors, one or more operating parameters for the at least one electrical protection device, wherein the analysis balances the grid reliability factors against the grid safety factors for the particular region; and controlling the at least one electrical protection device based on the one or more operating parameters.

2 . The method of claim 1 , wherein the particular region comprises one or more sub regions, each sub region being specific to one or more of the grid reliability factors or grid safety factors.

3 . The method of claim 1 , wherein a sub region for an environmental condition is smaller than a sub region for a load criticality factor.

4 . The method of claim 1 , wherein the grid safety factors comprise at least one of: a time of day, weather within the particular region or sub region, vegetation within the particular region or sub region, humidity within the particular region or sub region, or data indicative of a fault.

5 . The method of claim 1 , wherein the grid reliability factors comprise at least one of: a time of day, data indicative of a fault, a load usage percentage, a type of electrical source, a number of customers, a type of customer, a geographic location, or a load criticality factor.

6 . The method of claim 1 , wherein at least one electrical protection device is a recloser in a protective scheme operating at a first setpoint,
wherein the one or more operating parameters comprise a second setpoint, and wherein controlling the recloser based on the one or more operating parameters comprises sending instructions to the recloser to change the first setpoint to the second setpoint.

7 . The method of claim 1 , wherein determining the one or more operating parameters comprises:
obtaining, for a recloser within the particular region, a fault setpoint; determining that a proportion of inverter-based resources within the particular region is greater than a threshold; and
in response, adjusting the fault setpoint in accordance with the proportion of inverter-based resources.

8 . The method of claim 1 , wherein at least one electrical protection device is a recloser in a protective scheme operating at a first mode of operation, and wherein the one or more operating parameters comprise a second mode of operation, and wherein controlling the recloser based on the one or more operating parameters comprises sending instructions to the recloser to change the first mode of operation to the second mode of operation.

9 . The method of claim 1 , wherein at least one electrical protection device is an inverter operating at a first mode of operation, and wherein the one or more operating parameters comprise a second mode of operation, and wherein controlling the inverter based on the one or more operating parameters comprises sending instructions to the inverter to change the first mode of operation to the second mode of operation.

10 . The method of claim 1 , wherein the method further comprises:
receiving data indicative of a fault in the electrical grid; and determining a fault type based on the data, and wherein determining one or more operating parameters comprises dynamically adjusting the operating parameters based on the fault type.

11 . The method of claim 1 , wherein the method further comprises:
receiving data indicative of a fault in the electrical grid; and determining a time of fault based on the data, and wherein determining one or more operating parameters comprises dynamically adjusting the operating parameters based on the time of fault.

12 . The method of claim 1 , wherein determining one or more operating parameters for the at least one electrical protection device comprises:
obtaining grid reliability factors and grid safety factors; assigning a value to one or more of the grid reliability factors and grid safety factors; determining a safety and reliability score by multiplying each value by a corresponding weight and combining the values; and determining operating parameters by comparing the safety and reliability score with threshold scores.

13 . A system comprising:
at least one processor; and a data store coupled to the at least one processor having instructions stored thereon which, when executed by the at least one processor, causes the at least one processor to perform operations comprising:
obtaining electrical grid data corresponding to grid reliability factors and grid safety factors relevant to at least one electrical protection device located in a particular region of an electrical grid;
determining, based on an analysis of the grid reliability factors and the grid safety factors, one or more operating parameters for the at least one electrical protection device, wherein the analysis balances the grid reliability factors against the grid safety factors for the particular region; and
controlling the at least one electrical protection device based on the one or more operating parameters.

14 . The system of claim 13 , wherein the particular region comprises one or more sub regions, each sub region being specific to one or more of the grid reliability factors or grid safety factors.

15 . The system of claim 13 , wherein a sub region for an environmental condition is smaller than a sub region for a load criticality factor.

16 . The system of claim 13 , wherein the grid safety factors comprise at least one of: a time of day, weather within the particular region or sub region, vegetation within the particular region or sub region, humidity within the particular region or sub region, or data indicative of a fault.

17 . The system of claim 13 , wherein the grid reliability factors comprise at least one of: a time of day, data indicative of a fault, a load usage percentage, a type of electrical source, a number of customers, a type of customer, a geographic location, or a load criticality factor.

18 . The system of claim 13 , wherein at least one electrical protection device is a recloser in a protective scheme operating at a first setpoint,
wherein the one or more operating parameters comprise a second setpoint, and wherein controlling the recloser based on the one or more operating parameters comprises sending instructions to the recloser to change the first setpoint to the second setpoint.

19 . The system of claim 13 , wherein determining the one or more operating parameters comprises:
obtaining, for a recloser within the particular region, a fault setpoint; determining that a proportion of inverter-based resources within the particular region is greater than a threshold; and
in response, adjusting the fault setpoint in accordance with the proportion of inverter-based resources.

20 . A non-transitory computer readable storage media storing instructions that, when executed by at least one processor, cause the at least one processor to perform operations comprising:
obtaining electrical grid data corresponding to grid reliability factors and grid safety factors relevant to at least one electrical protection device located in a particular region of an electrical grid; determining, based on an analysis of the grid reliability

Assignees

• X Dev Llc

Inventors

• Wong Sze Mei Cat
• Fedoruk Laura Elizabeth
• Casey Leo Francis
• Khalilinia Hamed

Classifications

• H02J2103/35

  Grid-level management of power transmission or distribution systems, e.g. load flow analysis or active network management · CPC title

• H02J2103/30

  Simulating, planning, modelling, reliability check or computer assisted design [CAD] of electric power networks · CPC title

• H02J2101/24

  Photovoltaics · CPC title

• H02J3/001

  Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies · CPC title

• H02J3/381

  Dispersed generators · CPC title