System and method to minimize grid spinning reserve losses by pre-emptively sequencing power generation equipment to offset wind generation capacity based on geospatial regional wind conditions

• US 8,963,353 B1
• Filed: 09/19/2013
• Issued: 02/24/2015
• Est. Priority Date: 09/19/2013
• Status: Expired due to Fees

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Ekanayake, Sanji, Scipio, Alston Ilford, Davis, Dale J., Kauffman, Eric J., Yang, Timothy Tah-teh
• Primary Examiner(s): Cuevas, Pedro J
• Application Number:
  US14/031,212
• Publication Number:
  US 20150076821A1
• Time in Patent Office: 523 Days
• Field of Search: 290/43, 700/287, 700/295, 307/31
• US Class Current: 290/43
• CPC Class Codes: F03D 7/0284 in relation to the state of the electric grid
• CPC Class Codes: F03D 7/048 controlling wind farms
• CPC Class Codes: F03D 9/255 connected to electrical distribution networks; Arrangements therefor
• CPC Class Codes: H02J 2300/10 The dispersed energy generation being of fossil origin, e.g. diesel generators
• CPC Class Codes: H02J 2300/20 The dispersed energy generation being of renewable origin
• CPC Class Codes: H02J 2300/24 of photovoltaic origin
• CPC Class Codes: H02J 2300/28 The renewable source being wind energy wind motors F03D
• CPC Class Codes: H02J 2300/40 wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
• CPC Class Codes: H02J 3/004 Generation forecast, e.g. methods or systems for forecasting future energy generation
• CPC Class Codes: H02J 3/32 using batteries with converting means
• CPC Class Codes: H02J 3/381 Dispersed generators
• CPC Class Codes: H02J 3/466 Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
• CPC Class Codes: H02P 2101/15 for wind-driven turbines
• CPC Class Codes: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers
• CPC Class Codes: Y02E 10/72 Wind turbines with rotation axis in wind direction
• CPC Class Codes: Y02E 10/76 Power conversion electric or electronic aspects
• CPC Class Codes: Y02E 70/30 Systems combining energy storage with energy generation of non-fossil origin
• CPC Class Codes: Y04S 10/50 Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

Abstract

A system and method to preemptively adjust power generation of one or more non-wind power generators based on near term wind generation capability, spinning reserve margin, and/or power grid spinning reserve forecast requirements to offset wind power generation based on geospatial regional wind conditions.

Claims

1. A method comprising:

a. determining a spinning reserve margin for an online electric power grid served by one or more non-wind power generators;

b. determining at least one atmospheric or environmental factor influencing wind generation capability for a region associated with the online electric power grid;

c. determining, based on the at least one atmospheric or environmental factor, near term wind generation capability of a wind power generation system connected to the online electric power grid;

d. determining a power grid spinning reserve forecast requirement; and

e. providing instructions to adjust power generation of the one or more non-wind power generators based on the near term wind generation capability, the spinning reserve margin, and/or the power grid spinning reserve forecast requirement.

2. The method of claim 1 wherein the one or more non-wind power generators are selected from the group comprising gas turbine generators, steam turbine generators, battery packs, and capacitor banks.

3. The method of claim 1 wherein the at least one atmospheric or environmental factor is obtained in a region in which the wind power generation system is located or in which power generated by the wind power generation system is utilized.

4. The method of claim 3 wherein the at least one atmospheric or environmental factor is selected from the group comprising wind speed, wind direction, icing on wind turbine blades, lightning strikes, and wave height for off-shore units.

5. The method of claim 1 wherein if the determining, based on the at least one atmospheric or environmental factor, of the near term wind generation capability of the wind power generation system results in a determination of increased near term wind generation capability, then adjusting the power generation of the one or more non-wind power generators by decreasing the power generation of the one or more non-wind power generators, and if the determining, based on the at least one atmospheric or environmental factor, of the near term wind generation capability of the wind power generation system results in a determination of decreased near term wind generation capability, then adjusting the power generation of the one or more non-wind power generators by increasing the power generation of the one or more non-wind power generators.

6. The method of claim 1 comprising a plurality of regions, wherein each region is served by at least one wind power generation system and at least one online electric power grid, the method further comprising providing instructions to simultaneously adjust one or more non-wind power generators in each region based on the near term wind generation capability and the power grid spinning forecast requirement for each region.

7. The method of claim 1 wherein providing instructions comprises transmitting a signal to the one or more non-wind power generators.

8. The method of claim 7 wherein the signal comprises a wireless transmission.

9. The method of claim 1 wherein determining the power grid spinning reserve forecast requirement comprises determining a change in power consumption demand based on historical power consumption patterns.

10. The method of claim 1, further comprising determining power generator contributions to spinning reserve for the online electric power grid, and providing instructions to adjust power generation of the one or more non-wind power generators based on the near term wind generation capability, the non-wind power generator contributions to spinning reserve for the online electric power grid, and the power grid spinning reserve forecast requirement.

11. An electric power system comprising an electric power grid comprising one or more non-wind power generators;

the electric power grid configured to determine a spinning reserve margin for the one or more non-wind power generators;

the electric power grid further configured to determine at least one atmospheric or environmental factor influencing wind generation capability for a region associated with the electric power grid;

the electric power grid further configured to determine, based on the at least one atmospheric or environmental factor, near term wind generation capability of a wind power generation system connected to the electric power grid;

the electric power grid further configured to determine a power grid spinning reserve forecast requirement;

the electric power grid further configured to receive, initiate, and/or transmit instructions to adjust power generation of the one or more non-wind power generators based on the near term wind generation capability and the power grid spinning reserve forecast requirement.

12. The electric power system of claim 11, further configured to determine non-wind power generator contributions to spinning reserve for the electric power grid, and further configured to provide instructions to adjust power generation of the one or more non-wind power generators based on the near term wind generation capability, the non-wind power generator contributions to the spinning reserve for the power grid, and the power grid spinning reserve forecast requirement.

13. The electric power system of claim 11, wherein the one or more non-wind power generators are selected from the group comprising gas turbine generators, steam turbine generators, battery packs, and capacitor banks.

14. The electric power system of claim 11, wherein the electric power system is further configured to obtain the at least one atmospheric or environmental factor from a region in which the wind power generation system is located, or in which power generated by the wind power generation system is utilized.

15. The electric power system of claim 11, wherein the at least one atmospheric or environmental factor is selected from the group comprising wind speed, wind direction, icing on wind turbine blades, lightning strikes, and wave height for off-shore units.

16. The electric power system of claim 11, wherein the system is further configured to adjust the power generation of the one or more non-wind power generators by decreasing that power generation in response to a determination of increased near term wind generation capability, and wherein the electric power system is further configured to adjust the power generation of the one or more non-wind power generators by increasing that power generation in response to a determination of decreased near term wind generation capability.

17. The electric power system of claim 11, the electric power system serving a plurality of regions, wherein each region is served by at least one wind power generation system and at least one electric power grid, the electric power system further configured to simultaneously adjust one or more non-wind power generators in each region based on the near term wind generation capability and the power grid spinning reserve forecast requirement for each region.

18. The electric power system of claim 11, wherein the instructions to adjust power generation of the one or more non-wind power generators based on the near term wind generation capability and the power grid spinning reserve forecast requirement comprise a signal.

19. A method comprising:

a. determining a power price spark spread for power being produced by one or more non-wind power generators associated with an electric power grid;

b. determining near term wind generation capability of a wind power generation system connected to the online electric power grid; and

c. determining, based on the power price spark spread and the near term wind generation capability, whether to adjust power generation of the one or more non-wind power generators.

20. The method of claim 19 wherein if determining whether to adjust power generation of the one or more non-wind power generators results in a determination to adjust power generation of the one or more non-wind power generators, then providing instructions to adjust the one or more non-wind power generators.