SYSTEM AND METHOD FOR CONSERVING ELECTRICAL CAPACITY

• US 20110087384A1
• Filed: 10/09/2009
• Published: 04/14/2011
• Est. Priority Date: 10/09/2009
• Status: Abandoned Application

• Current Assignee: Consolidated Edison Company of New York Incorporated (Consolidated Edison Incorporated)
• Original Assignee: Consolidated Edison Company of New York Incorporated (Consolidated Edison Incorporated)
• Inventors: Bose, Sanjay
• Application Number:
  US12/576,692
• Publication Number:
  US 20110087384A1
• Time in Patent Office: Days
• US Class Current: 700/295
• CPC Class Codes: H02J 2310/60 Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
• CPC Class Codes: H02J 3/144 Demand-response operation of the power transmission or distribution network
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving

Abstract

A system and method of operating a complex system, such as an electrical transmission and distribution system is provided. The system includes a plurality of local assets that are used to form a contingency asset pool in the event that an operational issue is detected. The contingency assets may include dispatchable loads and on-site electrical power generation including diesel and natural gas fueled generators, and renewable power energy sources. The contingency asset pool conserves the capacity of the system on a local level and allows the system operator to maintain a high level of reliability while minimizing some of the costs associated purchasing, installing and maintaining redundant equipment.

Claims

1. A system for operating an electrical system comprising:

a plurality of sensors coupled to said electrical system;

a plurality of contingency assets coupled to said electrical system;

a controller operably coupled to said plurality of sensors and said plurality of contingency assets, said controller including at least one processor responsive to executable computer instructions when executed on said at least one processor for activating at least one of said plurality of contingency assets to reduce electrical demand from said at least one of said plurality of contingency assets on said electrical system in response to a first signal from at least one of said plurality of sensors indicating an N−

1 contingency condition has occurred.

2. The system of claim 1 wherein said plurality of contingency assets provides at least a N−

1 level of contingency capacity for said electrical system.

3. The system of claim 2 wherein said N−

1 contingency condition is a loss of electrical generation capacity.

4. The system of claim 2 wherein said N−

1 contingency condition is an over-loaded transmission line.

5. The system of claim 2 wherein said N−

1 contingency condition is an equipment malfunction in a substation.

6. The system of claim 2 wherein at least one of said plurality of contingency assets includes a distributed generation system.

7. The system of claim 6 wherein said distributed generation system includes a renewable energy power source.

8. The system of claim 2 wherein at least one of said plurality of contingency assets is a dispatchable load.

9. The system of claim 2 wherein said controller is further responsive to a second signal from one of said plurality of sensors to deactivate at least one of said plurality of contingency assets to decrease electrical demand from said at least one of said plurality of contingency assets on said electrical system.

10. A method for operating an electrical system comprising:

defining a contingency asset pool from a plurality of electrical generation and load assets;

coupling said contingency asset pool to a controller, said controller including at least one processor responsive to executable instructions comprising;

monitoring said electrical system with said controller;

detecting an N−

1 contingency condition with said controller; and

,

activating at least one said plurality of electrical generation and load assets from said contingency asset pool with said controller in response to detecting said N−

1 contingency condition.

11. The method of claim 10 further comprising:

defining an N−

1 contingency program; and

,

providing an incentive to operators of said plurality of electrical generation and load assets to participate in said N−

1 contingency program.

12. The method of claim 11 wherein said incentive includes a reduced electrical tariff.

13. The method of claim 11 wherein said incentive includes the transfer of carbon credits.

14. The method of claim 11 wherein said incentive includes the transfer of nitrous oxide offsets.

15. The method of claim 11 wherein said incentive program includes a reverse auction wherein said operators define different time periods for participating in said program.

16. The method of claim 11 further comprising the step of deactivating said at least one said plurality of electrical generation and load assets from said contingency asset pool with said controller in response to said N−

1 contingency condition being mitigated.

17. The method of claim 16 wherein said plurality of electrical generation and load assets in said contingency asset pool are coupled to a segregable portion of said electrical system.

18. The method of claim 17 further comprising the step of segregating said segregable portion in response to activating said at least one said plurality of electrical generation and load assets from said contingency asset pool.

19. The method of claim 18 wherein said contingency asset pool includes at least one distributed generation system coupled to removably apply electrical power to said segregable portion.