ELECTRIC POWER GRID CONTROL USING A MARKET-BASED RESOURCE ALLOCATION SYSTEM

• US 20140201018A1
• Filed: 01/28/2014
• Published: 07/17/2014
• Est. Priority Date: 09/29/2008
• Status: Active Grant

• Current Assignee: Battelle Memorial Institute
• Original Assignee: Battelle Memorial Institute
• Inventors: Chassin, David P.
• Granted Patent: US 9,087,359 B2
• Time in Patent Office: Days
• US Class Current: 705/26.3
• CPC Class Codes: G06Q 20/102 Bill distribution or payments
• CPC Class Codes: G06Q 30/0611 Request for offers or quotes
• CPC Class Codes: G06Q 30/08 Auctions
• CPC Class Codes: G06Q 40/04 Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
• CPC Class Codes: G06Q 50/06 Energy or water supply
• 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
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid
• CPC Class Codes: Y04S 50/12 Billing, invoicing, buying or selling transactions or other related activities, e.g. cost or usage evaluation

Abstract

Disclosed herein are representative embodiments of methods, apparatus, and systems for distributing a resource (such as electricity) using a resource allocation system. In one exemplary embodiment, a plurality of requests for electricity are received from a plurality of end-use consumers. The requests indicate a requested quantity of electricity and a consumer-requested index value indicative of a maximum price a respective end-use consumer will pay for the requested quantity of electricity. A plurality of offers for supplying electricity are received from a plurality of resource suppliers. The offers indicate an offered quantity of electricity and a supplier-requested index value indicative of a minimum price for which a respective supplier will produce the offered quantity of electricity. A dispatched index value is computed at which electricity is to be supplied based at least in part on the consumer-requested index values and the supplier-requested index values.

Claims

1. A method comprising:

receiving at an intermediary computing system a plurality of requests for electricity from a plurality of electricity consumers, wherein each of the plurality of requests indicates a requested quantity of electricity and a consumer-requested index value indicative of a maximum price a respective electricity consumer is willing to pay for the requested quantity of electricity;

receiving at the intermediary computing system a plurality of offers for supplying electricity from a plurality of electricity suppliers, wherein each of the plurality of offers indicates an offered quantity of electricity and a supplier-requested index value indicative of a minimum price for which a respective electricity supplier is willing supply the offered quantity of electricity; and

with the intermediary computing system, comprising a dispatched index value indicating a price at which electricity is to be supplied and purchased based at least in part on the consumer-requested index values and the supplier-requested index values.

2. The method of claim 1, wherein the acts of receiving the plurality of requests for electricity, receiving the plurality of offers for supplying electricity, and determining, are repeated at periodic intervals.

3. The method of claim 1, wherein the act of receiving the plurality of requests and the act of receiving the plurality of offers are performed substantially simultaneously.

4. The method of claim 1, wherein the act of determining the dispatched index value is performed using a double auction method.

5. A system comprising at least two electricity allocation systems, a first of the electricity allocation systems being nested within a second of the electricity allocation systems, the at least two electricity allocation systems being configured to communicate with electricity consumers and electricity suppliers over a digital network and according to a bi-directional communication protocol to dispatch electricity between the electricity consumers and electricity suppliers.

6. The system of claim 5, wherein the electricity allocation systems dispatch electricity at least in part by:

separating requests and offers for electricity into two groups;

sorting each item in the two groups according to a quantity level; and

determining a dispatched index value for electricity by determining an index value at which approximately the same quantity level for requests and offers occurs.

7. The system of claim 5, wherein at least one of the first or second electricity allocation systems is configured to:

receive a plurality of requests for electricity from a plurality of electricity consumers, wherein each of the plurality of requests indicates a requested quantity of electricity and a consumer-requested index value indicative of a maximum price a respective electricity consumer is willing to pay for the requested quantity of electricity;

receive a plurality of offers for supplying electricity from a plurality of electricity suppliers, wherein each of the plurality of offers indicates an offered quantity of electricity and a supplier-requested index value indicative of a minimum price for which a respective electricity supplier is willing supply the offered quantity of electricity;

determine a dispatched index value indicating a price at which electricity is to be supplied and purchased based at least in part on the consumer-requested index values and the supplier-requested index values; and

transmit data indicating the dispatched index value to one or more of the plurality of electricity consumers or to one or more of the plurality of electricity suppliers.

8. The system of claim 5, wherein the first electricity allocation system is a subsystem or substation of the second electricity allocation system.

9. A method for generating a generator bid value for bidding to supply electricity in a market-based resource allocation system, comprising:

using computing hardware, computing a generator bid value indicative of a price at which a generator can deliver electricity into a power grid;

transmitting the generator bid value and a value indicative of a magnitude of electrical load the generator can remove from the power grid to a central computer that manages the resource allocation system; and

receiving a message from the central computer indicating whether the generator should be activated.

10. The method of claim 9, wherein the generator is an asynchronous generator.

11. The method of claim 9, wherein the message from the central computer includes a current market price value indicative of a current market price for electricity, and wherein the method comprises activating the generator if the generator bid value is less than the current market price value.

12. The method of claim 9, wherein the generator bid value is based at least in part on a license premium value that is computed using a remaining number of hours the generator can operate according to the generator'"'"'s operating license.

13. The method of claim 9, wherein the generator bid value is based at least in part on a fuel cost value indicative of a cost of fuel for operating the generator for a fixed period of time.

14. The method of claim 9, wherein the generator bid value is based at least in part on an operating and maintenance cost value indicative of a cost for operating and maintaining the generator for a fixed period of time.

15. The method of claim 9, wherein the generator bid value is based at least in part on a startup cost value indicative of a cost for starting the generator.

16. The method of claim 9, wherein the generator bid value is based at least in part on a shutdown cost value indicative of a cost for shutting down the generator before a minimum operating time threshold is achieved.

17. The method of claim 9, wherein the generator bid value is computed according to the following equation,

bid=licensepremium·

(fuelcost+O&

Mcost+startupcost+shutdownpenalty),

wherein bid is the generator bid, licensepremium is a value associated with remaining unused licensed hours for the generator, O&

Mcost is a value associated with the operating and maintenance cost, startupcost is a value associated with penalties or costs for starting up the generator, and shutdownpenalty is a value associated with penalties or costs for prematurely shutting down the generator.

18. The method of claim 9, wherein the computing hardware is a computer processor or an integrated circuit.

19. A computer-readable storage device storing computer-readable instructions for causing computer to perform the method of claim 9.

20. An integrated circuit comprising computing hardware configured to perform the method of claim 9.