IP Library Granted Patent US 8,350,412
Granted Patent B2
US 8,350,412 · App. 12/817,645 · Granted Jan 8, 2013

Dynamically controlling configuration of a power grid comprising one or more stand-alone sub-grids

Assignee: Intelligent Power and Engineering Research Corporation (IPERC)
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Quick Facts
Patent No.
US 8,350,412
App. No.
12/817,645
Granted
Jan 8, 2013
Kind
B2
Abstract

A technique is provided for automatically controlling configuration of a power grid, which includes one or more stand-alone sub-grids. Each stand-alone sub-grid includes a power generator, and a load is associated with the stand-alone sub-grid(s). The technique includes: monitoring the power grid by monitoring power demand of a load associated with the stand-alone sub-grid(s) and the power generated by the power generator within each stand-alone sub-grid; automatically determining that a grid configuration change is required for the power grid based on the monitoring; and dynamically reconfiguring the power grid by automatically modifying a number of stand-alone sub-grids in the power grid without interrupting power to the load associated with the stand-alone sub-grid(s) of the power grid. In one implementation, the power grid is a mobile power grid, and the power generator of each stand-alone sub-grid is a portable power generator.

Claims (41)

1. A method of controlling configuration of a power grid, the method comprising:

automatically monitoring the power grid, wherein the power grid comprises at least one stand-alone sub-grid, each stand-alone sub-grid comprising a power generator, and wherein the automatically monitoring comprises automatically monitoring power demand of a load associated with the at least one stand-alone sub-grid and power generated by the power generator within each stand-alone sub-grid;

automatically determining that a grid configuration change is required for the power grid based on the monitoring; and

dynamically reconfiguring the power grid by automatically modifying one or more stand-alone sub-grids of the at least one stand-alone sub-grid in the power grid without interrupting power to the load associated with the at least one stand-alone sub-grid of the power grid and without shedding the load from the power grid.

2. The method of claim 1 , wherein the monitored power grid comprises multiple stand-alone sub-grids, and the dynamically reconfiguring comprises automatically electrically connecting a first stand-alone sub-grid and a second stand-alone sub-grid of the multiple stand-alone sub-grids into a single stand-alone sub-grid and automatically deactivating at least one power generator powering one of the first stand-alone sub-grid or the second stand-alone sub-grid without interrupting power to the single stand-alone sub-grid.

3. The method of claim 2 , wherein the automatically electrically connecting comprises automatically electrically connecting the first stand-alone sub-grid and the second stand-alone sub-grid when load associated with at least one of the first stand-alone sub-grid or the second stand-alone sub-grid is below a low power load threshold.

4. The method of claim 2 , wherein the automatically electrically connecting comprises employing a grid connect unit electrically connected to the first stand-alone sub-grid and the second stand-alone sub-grid in automatically electrically connecting the first stand-alone sub-grid and the second stand-alone sub-grid into the single stand-alone sub-grid when load associated with at least one of the first stand-alone sub-grid or the second stand-alone sub-grid is below a low power load threshold, wherein the grid connect unit comprises a power relay, which when closed, electrically connects the first stand-alone sub-grid and the second stand-alone sub-grid.

5. The method of claim 2 , wherein the automatically electrically connecting further comprises monitoring voltage frequencies within the first stand-alone sub-grid and the second stand-alone sub-grid and automatically electrically connecting the first stand-alone sub-grid and the second stand-alone sub-grid into the single stand-alone sub-grid when the monitored voltage frequencies of the first stand-alone sub-grid and the second stand-alone sub-grid are in phase.

6. The method of claim 1 , wherein the dynamically reconfiguring comprises, without interrupting power, automatically electrically separating a single stand-alone sub-grid of the at least one stand-alone sub-grid into a first stand-alone sub-grid and a second stand-alone sub-grid and automatically activating a power generator for one of the first stand-alone sub-grid or the second stand-alone sub-grid without interrupting power to the first stand-alone sub-grid or the second stand-alone sub-grid.

7. The method of claim 6 , wherein the automatically electrically separating comprises automatically, electrically separating the single stand-alone sub-grid into the first stand-alone sub-grid and the second stand-alone sub-grid when load associated with the single stand-alone sub-grid is above a high power load threshold of the single stand-alone sub-grid or the load associated with the single stand-alone sub-grid is dynamically projected to be above the high power load threshold of the single stand-alone sub-grid.

8. The method of claim 6 , wherein the automatically electrically separating comprises employing a grid connect unit electrically connected to the single stand-alone sub-grid in automatically electrically separating the single stand-alone sub-grid into the first stand-alone sub-grid and the second stand-alone sub-grid when load associated with the single stand-alone sub-grid is above a high power load threshold of the single stand-alone alone sub-grid or the load associated with the single stand-alone sub-grid is dynamically projected to be above the high power load threshold of the single stand-alone sub-grid, wherein the grid connect unit comprises a power relay, which when opened, in combination with the automatically activating of the power generator, electrically separates the single stand-alone sub-grid into the first stand-alone sub-grid and the second stand-alone sub-grid.

9. The method of claim 1 , wherein the power grid is a mobile power grid, and the power generator of each stand-alone sub-grid is a portable power generator, and wherein each stand-alone sub-grid further comprises a respective power load.

10. A method of controlling configuration of a power grid, the method comprising:

automatically monitoring the power grid, wherein the power grid comprises at least one stand-alone sub-grid, each stand-alone sub-grid comprising a power generator, and wherein the automatically monitoring comprises automatically monitoring power demand of a load associated with the at least one stand-alone sub-grid and power generated by the power generator within each stand-alone sub-grid;

automatically determining that a grid configuration change is required for the power grid based on the monitoring;

automatically electrically connecting a first stand-alone sub-grid and a second stand-alone sub-grid of the at least one stand-alone sub-grid into a single stand-alone sub-grid and automatically deactivating at least one power generator of the first stand-alone sub-grid or the second stand-alone sub-grid, the automatically electrically connecting being responsive to the monitored load being below a low power load threshold and occurring without interrupting power to the load associated with the at least one stand-alone sub-grid of the power grid; and

automatically electrically separating a single stand-alone sub-grid of the at least one stand-alone sub-grid into the first stand-alone sub-grid and the second stand-alone sub-grid and automatically activating at least one additional power generator to power one of the first stand-alone sub-grid or the second stand-alone sub-grid, the automatically electrically separating being responsive to the monitored load being or dynamically projected to be above a high power load threshold, and occurring without interrupting power to the load associated with the at least one stand-alone sub-grid of the power grid.

11. A system for controlling configuration of a power grid, the system comprising:

a memory; and

a processor in communications with the memory, wherein the system is capable of performing a method, the method comprising:

automatically monitoring the power grid, wherein the power grid comprises at least one stand-alone sub-grid, each stand-alone sub-grid comprising a power generator, and wherein the automatically monitoring comprises automatically monitoring power demand of a load associated with the at least one stand-alone sub-grid and power generated by the power generator within each stand-alone sub-grid;

automatically determining that a grid configuration change is required for the power grid based on the monitoring; and

dynamically reconfiguring the power grid by automatically modifying one or more stand-alone sub-grids of the at least one stand-alone sub-grid in the power grid without interrupting power to the load associated with the at least one stand-alone sub-grid of the power grid and without shedding the load from the power grid.

12. The system of claim 11 , wherein the monitored power grid comprises multiple stand-alone sub-grids, and the dynamically reconfiguring comprises automatically electrically connecting a first stand-alone sub-grid and a second stand-alone sub-grid of the multiple stand-alone sub-grids into a single stand-alone sub-grid, and automatically deactivating at least one power generator powering one of the first stand-alone sub-grid or the second stand-alone sub-grid without interrupting power to the single stand-alone sub-grid, and wherein the automatically electrically connecting comprises automatically electrically connecting the first stand-alone sub-grid and the second stand-alone sub-grid when load associated with at least one of the first stand-alone sub-grid or the second stand-alone sub-grid is below a lower power load threshold.

13. The system of claim 12 , wherein the automatically electrically connecting comprises employing a grid connect unit electrically connected to the first stand-alone sub-grid and the second stand-alone sub-grid in automatically electrically connecting the first stand-alone sub-grid and the second stand-alone sub-grid into the single stand-alone sub-grid when load associated with the at least one of the first stand-alone sub-grid or the second stand-alone sub-grid is below the low power load threshold, and wherein the grid connect unit comprises a power relay, which when closed, electrically connects the first stand-alone sub-grid and the second stand-alone sub-grid.

14. The system of claim 12 , wherein the automatically electrically connecting further comprises monitoring voltage frequencies within the first stand-alone sub-grid and the second stand-alone sub-grid and automatically electrically connecting the first stand-alone sub-grid and the second stand-alone sub-grid into the single stand-alone sub-grid when the monitored voltage frequencies of the first stand-alone sub-grid and the second stand-alone sub-grid grid are in phase.

15. The system of claim 11 , wherein the dynamically reconfiguring comprises, without interrupting power, automatically electrically separating a single stand-alone sub-grid of the at least one stand-alone sub-grid into a first stand-alone sub-grid and a second stand-alone sub-grid, and automatically activating a power generator for one of the first stand-alone sub-grid or the second stand-alone sub-grid without interrupting power to the first stand-alone sub-grid or the second stand-alone sub-grid, and wherein the automatically electrically separating comprises automatically electrically separating the single stand-alone sub-grid into the first stand-alone sub-grid and the second stand-alone sub-grid when power load associated with the single stand-alone sub-grid is above a high power load threshold of the single stand-alone sub-grid or the load associated with the single stand-along sub-grid is dynamically projected to be above the high power load threshold of the single stand-alone sub-grid.

16. The system of claim 15 , wherein the automatically electrically separating comprises employing a grid connect unit electrically connected to the single stand-alone sub-grid in automatically electrically separating the single stand-alone sub-grid grid into the first stand-alone sub-grid and the second stand-alone sub-grid when load associated with the single stand-alone sub-grid is above the high power load threshold of the single stand-alone sub-grid or the load associated with the single stand-alone sub-grid is dynamically projected to be above the high power load threshold of the single stand-alone sub-grid, wherein the grid connect unit comprises a power relay, which when opened, in combination with the automatically activating of the power generator, electrically separates the single stand-alone sub-grid into the first stand-alone sub-grid and the second stand-alone sub-grid.

17. The system of claim 11 , wherein the power grid is a mobile power grid, and the power generator of each stand-alone sub-grid is a portable power generator, and wherein each stand-alone sub-grid further comprises a respective load.

18. A computer program product for controlling configuration of a power grid, the computer program product comprising:

a storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising:

automatically monitoring the power grid, wherein the power grid comprises at least one stand-alone sub-grid, each stand-alone sub-grid comprising a power generator, and wherein the automatically monitoring comprises automatically monitoring power demand of a load associated with the at least one stand-alone sub-grid and power generated by the power generator within each stand-alone sub-grid;

automatically determining a grid configuration change is required for the power grid based on the monitoring; and

dynamically reconfiguring the power grid by automatically modifying one or more stand-alone sub-grids of the at least one stand-alone sub-grid in the power grid without interrupting power to the load associated with the at least one stand-alone sub-grid of the power grid and without shedding the load from the power grid.

19. The computer program product of claim 18 , wherein the monitored power grid comprises multiple stand-alone sub-grids, and the dynamically reconfiguring comprises automatically electrically connecting a first stand-alone sub-grid and a second stand-alone sub-grid of the multiple stand-alone sub-grids into a single stand-alone sub-grid, and automatically deactivating at least one power generator powering one of the first stand-alone sub-grid or the second stand-alone sub-grid without interrupting power to the single stand-alone sub-grid, and wherein the automatically electrically connecting comprises automatically electrically connecting the first stand-alone sub-grid and the second stand-alone sub-grid when power load associated with at least one of the first stand-alone sub-grid or the second stand-alone sub-grid is below a lower power load threshold.

20. The computer program product of claim 18 , wherein the dynamically reconfiguring comprises, without interrupting power, automatically electrically separating a single stand-alone sub-grid of the at least one stand-alone sub-grid into a first stand-alone sub-grid and a second stand-alone sub-grid, and automatically activating a power generator for one of the first stand-alone sub-grid or the second stand-alone sub-grid without interrupting power to the first stand-alone sub-grid or the second stand-alone sub-grid, and wherein the automatically electrically separating comprises automatically electrically separating the single stand-alone sub-grid into the first stand-alone sub-grid and the second stand-alone sub-grid when load associated with the single stand-alone sub-grid is above a high power load threshold of the single stand-alone sub-grid or the load associated with the single stand-alone sub-grid is dynamically projected to be above the high power load threshold of the single stand-alone sub-grid.

21. A method of deploying power grid configuration control logic on one or more processing units, the method comprising:

installing power grid configuration control logic on at least one processing unit, the power grid configuration control logic to:

automatically monitor the power grid, wherein the power grid comprises at least one stand-alone sub-grid, each stand-alone sub-grid comprising a power generator, and wherein the automatic monitoring comprises automatically monitoring power demand of a load associated with the at least one stand-alone sub-grid and power generated by the power generator within each stand-alone sub-grid;

automatically determine that a grid configuration change is required for the power grid based on the monitoring; and

dynamically reconfigure the power grid by automatically modifying one or more stand-alone sub-grids of the at least one stand-alone sub-grid in the power grid without interrupting power to the load associated with the at least one stand-alone sub-grid of the power grid and without shedding the load from the power grid.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 25, 2017
From: INTELLIGENT POWER & ENERGY RESEARCH CORPORATION, INC.
To: S&C ELECTRIC COMPANY
Reel/Frame 041073/0396 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE NAME PREVIOUSLY RECORDED ON REEL 024552 FRAME 0640. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF INTEREST. Recorded Apr 12, 2013
From: CURTISS, PETER S.; MASSIE, DARRELL D.; MILLER, MICHAEL M.
To: INTELLIGENT POWER AND ENERGY RESEARCH CORPORATION (IPERC)
Reel/Frame 030206/0076 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2010
From: MASSIE, DARRELL D.; MILLER, MICHAEL A.; CURTISS, PETER S.
To: INTELLIGENT POWER AND ENGINEERING RESEARCH CORPORATION (IPERC)
Reel/Frame 024552/0640 →
Continuity (2)
Provisional Application 61218512 · Jun 19, 2009
Related Publication 20100320838A1 · Dec 23, 2010