Systems and methods for restoring service within electrical power systems

Patent metadata

Field	Value
Publication number	US-9698616-B2
Application number	US-201214354267-A
Country	US
Kind code	B2
Filing date	Sep 13, 2012
Priority date	Oct 31, 2011
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

Systems and methods for restoring service within electrical power systems are disclosed. The methods may include identifying a restoration path for an outage area within a power system, selecting a mobile energy resource connection site that is electrically connected to the restoration path and/or the outage area, sending power injection requests to a plurality of mobile energy resources, at least some of which may be proximate the connection site, receiving power injection acceptances from participating ones of the plurality of mobile energy resources, and implementing the restoration path. The systems may include a processor and a computer readable storage medium having a plurality of machine-readable instructions embodied thereon and configured for execution by the processor to carry out the method.

First claim

What is claimed is:

1. A method for restoring service within an electrical power system, the method comprising:
identifying a restoration path for an outage area within the electrical power system;
selecting a mobile energy resource connection site that is electrically connected to at least one of the restoration path and the outage area;
sending power injection requests to a first plurality of mobile energy resources, at least some of which are proximate the mobile energy resource connection site, the power injection requests comprising requests for the first plurality of mobile energy resources to inject power;
receiving power injection acceptances from participating ones of the first plurality of mobile energy resources;
determining a first available power injection from the participating ones of the first plurality of mobile energy resources;
implementing the restoration path to inject power from one or more of the first plurality of mobile energy resources to the restoration path when the first available power injection has a magnitude greater than required to permit restoring service to at least a portion of the outage area, wherein the restoration path includes a portion of a distribution feeder of a utility power grid;
sending power injection requests to a second plurality of mobile energy resources proximate the connection site when the first available power injection has a magnitude less than required to permit restoring service to the portion of the outage area;
receiving power injection acceptances from participating ones of the second plurality of mobile energy resources;
determining a second available power injection from participating ones of the first and second pluralities of mobile energy resources; and
implementing the restoration path when the second available power injection has a magnitude greater than required-to permit restoring service to the portion of the outage area.

2. The method of claim 1 , wherein the power injection requests direct the mobile energy resources to inject power at the connection site.

3. The method of claim 1 , wherein implementing the restoration path comprises executing at least one switching action.

4. The method of claim 1 , wherein the first available power injection has a magnitude greater than required to supply at least some loads in the outage area by at least a predetermined margin.

5. The method of claim 1 , wherein the plurality of mobile energy resources are vehicles comprising electrical energy sources and the connection site is configured to selectively exchange power with the plurality of electrical energy source.

6. The method of claim 5 , wherein at least some of the plurality of mobile energy resources are plug-in electric vehicles and the connection site is a charging station configured for use with the plug-in electric vehicles.

7. The method of claim 1 , comprising:
isolating a fault in the electrical power system and creating the outage area; and
identifying a restoration source for the outage area.

8. The method of claim 1 embodied as a plurality of machine-readable instructions on a computer readable storage medium, wherein the plurality of machine-readable instructions are configured to be executed by at least one computer processor to perform the method.

9. The method of claim 1 , wherein the first mobile energy resources are proximate the connection site when the first mobile energy resources are within an acceptable distance defined for the connection site.

10. A method for restoring service within an electrical power system including a utility grid electrical power line dividable into a plurality of portions, the method comprising:
identifying a restoration path for an outage area within the electrical power system;
selecting an electric vehicle charging station electrically connected to at least one of the restoration path and the outage area;
sending discharge requests to a first plurality of electric vehicles, at least some of which are proximate the electric vehicle charging station, the discharge requests including request for the first plurality of vehicles to discharge power;
receiving discharge acceptances from participating ones of the first plurality of electric vehicles;
determining a first available power injection from the participating ones of the first plurality of electric vehicles;
implementing the restoration path including executing at least one switching action to implement the restoration path when the first available power injection has a magnitude greater than required to supply power to-at least a portion of the outage area, wherein the restoration path includes a portion of the utility grid electrical power line receiving injected power and an act of implementing the restoration path includes actuating one or more of a plurality of switches to select the portion of the utility grid electrical power line receiving injected power;
identifying a second plurality of electric vehicles proximate the electric vehicle charging station when the first available power injection has a magnitude less than required to permit restoring service to at least the portion of the outage area;
sending discharge requests to the second plurality of electric vehicles;
receiving discharge acceptances from participating ones of the second plurality of electric vehicles;
determining a second available power injection from participating ones of the first and second pluralities of electric vehicles; and
implementing the restoration path when the second available power injection has a magnitude greater than required to permit restoring service to at least the portion of the outage area.

11. The method of claim 10 , comprising identifying the first plurality of electric vehicles as being proximate the electric vehicle charging station.

12. The method of claim 10 , wherein the discharge requests comprise instructions to proceed to the electric vehicle charging station and inject power into the electric power system.

13. The method of claim 10 , wherein the portion of the outage area includes at least one load, and the available power injection has a magnitude greater than required to supply the at least one load by at least a predetermined margin.

14. The method of claim 10 , wherein at least some of the plurality of electric vehicles are plug-in electric vehicles and the charging station is configured to selectively receive power from the plug-in electric vehicles.

15. The method of claim 10 , comprising:
creating the outage area by isolating a fault in the electrical power system; and
identifying a restoration source for the outage area.

16. The method of claim 10 , wherein the first plurality of electric vehicles are proximate the electric vehicle charging station when the first plurality of electric vehicles are within a predefined expected travel distance from the electric vehicle charging station.

17. A system for restoring service within an electrical power system including a distribution feeder, the system comprising:
a processor; and
a non-transitory computer readable storage medium having a plurality of machine-readable instructions embodied thereon and configured for execution by the processor, the plurality of machine-readable instructions comprising a set of instructions to:
identify a restoration path for an outage area within the electrical power system;
select an electric vehicle charging station electrically connected to at least one of the restoration path and the outage area;
send power injection requests to a first plurality of electric vehicles, at least so

Assignees

• Mohagheghi Salman
• Stoupis James
• Abb Research Ltd

Inventors

• Mohagheghi Salman
• Stoupis James

Classifications

• H02J3/322

  the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging · CPC title

• H02J13/1323

  using optical fibres · CPC title

• H02J13/333

  the equipment forming part of substations · CPC title

• H02J3/0073

  by providing alternative feeding paths when the main path fails · CPC title

• B60L58/40

  for controlling a combination of batteries and fuel cells · CPC title