Generator reserve capacity control system and network

• US 8,515,588 B2
• Filed: 03/09/2011
• Issued: 08/20/2013
• Est. Priority Date: 03/09/2011
• Status: Active Grant

• Current Assignee: GE Digital Holdings LLC (GE Aerospace)
• Original Assignee: General Electric Company
• Inventors: Warner, David Arthur
• Primary Examiner(s): PATEL, RAMESH B
• Application Number:
  US13/043,914
• Publication Number:
  US 20120232710A1
• Time in Patent Office: 895 Days
• Field of Search: 700/286, 700/287, 700/291, 700295-297, 323/204, 323/304, 323/318
• US Class Current: 700/287
• CPC Class Codes: H02J 3/46 Controlling of the sharing of output between the generators, converters, or transformers
• CPC Class Codes: H02P 9/04 Control effected upon non-electric prime mover and dependent upon electric output value of the generator

Abstract

The present subject matter relates to methods, systems, and networks for making available identified generator reserve capacity to provided compensation for lost generator capacity on a temporary basis. The present subject matter provides for increasing the power output of currently operating synchronous generators to provide substantially instantaneous supply of additional power upon loss of other generating capability. The system takes into consideration and makes available to system operators the general availability of additional real power output capability of operating generators even though such power generation may be provided at less than optimal operating characteristics of the individual generators providing the additional power.

Claims

1. A method for replacing lost generator capacity, comprising:

evaluating operational characteristics of one or more energy generators to determine reserve generation capacity;

generating offers of access to identified reserve energy capacity; and

enabling a local generator control system to cause the generator to increase its real power output upon acceptance of an offer.

2. The method of claim 1, further comprising:

evaluating operational characteristics of a plurality of energy generators to determine their individual reserve capacity; and

generating offers of access to up to the combined reserve of the plurality of energy generators.

3. The method of claim 1, further comprising:

accepting commands directly at a local generator from an offer accepting entity.

4. The method of claim 1, wherein generating offers of access comprises generating offers of access to reserve capacity from operating synchronous generating equipment.

5. The method of claim 1, wherein generating offers of access comprises generating offers of access to reserve capacity from one or more operating turbine driven generators.

6. The method of claim 1, further comprising:

differentially measuring energy produced above a predetermined value following acceptance of an offer to determine the amount of power delivered from the generator.

7. The method of claim 6, further comprising:

establishing the predetermined value to be the operating baseline for the generator prior to increasing generator output in response to an accepted offer.

8. The method of claim 1, wherein the reserve generation capacity is determined based at least in part on temporary generation operation beyond optimal operation points.

9. A system for replacing lost generator capacity, comprising:

at least one energy generator, said generator having reserve energy generation capacity;

a signaling system configured to communicate an offer of access to the reserve energy generation capacity; and

a local generator control system configured to receive an offer acceptance signal and to cause said generator to increase its real power output upon acceptance of a communicated offer.

10. A system as in claim 9, further comprising:

a plurality of operating synchronous generators each with their own individually determined reserve capacity; and

a signaling system configured to offering access to up to the combined reserve capacity of the plurality of energy generators.

11. A system as in claim 9, further comprising:

a differential metering device configured to measure energy produced by said at least one energy generator above a predetermined value following acceptance of an offer,

whereby the actual amount of power delivered from the generator may be determined.

12. A system as in claim 11, wherein said differential metering device is configured to measure delivered generator output power above an operating baseline for the generator prior to increasing the generator output power in response to an accepted offer.