Source: http://www.google.co.uk/patents/US9069337
Timestamp: 2017-11-23 13:22:40
Document Index: 551856267

Matched Legal Cases: ['§119', 'Application No. 2010', 'Application No. 2010', 'Application No. 10822357', 'Application No. 08795674', 'Application No. 10772388', 'Application No. 08795673', 'Application No. 2010', 'Application No. 2012', 'Application No. 2010522954', 'Application No. 10', 'Application No. 10', 'Application No. 10', 'Application No. 10', 'Application No. 10', 'Application No. 10', 'Application No. 2008296979', 'Application No. 2008296979', 'Application No. 2008296979', 'Application No. 200880113529', 'Application No. 200880113530', 'Application No. 200880113529', 'Application No. 200880113530', 'Application No. 200880113529']

Patent US9069337 - System and method for estimating and providing dispatchable operating ... - Google Patents
A utility employs a method for estimating available operating reserve. Electric power consumption by at least one device serviced by the utility is determined during at least one period of time to produce power consumption data. The power consumption data is stored in a repository. A determination is...http://www.google.co.uk/patents/US9069337?utm_source=gb-gplus-sharePatent US9069337 - System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
Publication number US9069337 B2
Application number US 13/784,211
Also published as CA2761038A1, CA2761038C, EP2427806A1, EP2427806A4, US8396606, US20100222935, US20130184888, WO2010129059A1, WO2010129059A8
Publication number 13784211, 784211, US 9069337 B2, US 9069337B2, US-B2-9069337, US9069337 B2, US9069337B2
Patent Citations (362), Non-Patent Citations (83), Classifications (16), Legal Events (3)
US 9069337 B2
determining amounts of electric power consumed by at least one device during multiple periods of time to produce power consumption data, the at least one device being located at the one or more service points;
determining that a control event is to occur during which a supply of electric power is to be reduced to the at least one device;
after storage of the power consumption data in the repository and prior to commencement of the control event, estimating, under an assumption that the control event is not to occur, power consumption behavior expected of the at least one device during a future period of time based at least on the stored power consumption data, wherein the control event is expected to occur during the future period of time;
determining, prior to commencement of the control event, energy savings expected to result from the control event based at least on the estimated power consumption behavior of the at least one device to produce projected energy savings; and
determining, prior to commencement of the control event, an amount of available operating reserve based on the projected energy savings;
wherein determining energy savings expected to result from the control event includes:
determining an amount of power expected to be consumed by the at least one device during the future period of time absent occurrence of the control event to produce first energy savings;
determining an amount of power that is not expected to be dissipated in transmission lines as a result of withholding delivery of power to the at least one device during the control event to produce second energy savings; and
managing distribution of the available operating reserve subsequent to commencement of the control event.
5. The method of claim 1, wherein determining that a control event is to occur comprises:
determining that a control event is to occur responsive to receipt of an Automatic Generation Control command.
6. The method of claim 1, wherein determining energy savings expected to result from the control event further comprises:
7. The method of claim 1, wherein the step of storing the power consumption data in a repository comprises:
8. The method of claim 1, wherein the step of determining projected energy savings is performed on a service point by service point basis.
9. The method of claim 1, wherein the step of determining projected energy savings is performed on a utility-wide basis.
determining that a first set of one or more devices is to be released from the control event prior to termination of the control event; and
11. A method for estimating operating reserve of a utility servicing one or more service points, the method comprising:
determining amounts of electric power consumed by at least one device during multiple periods of time to produce power consumption data, the at least one device being located at the one or more service points and including at least one environmentally-dependent device;
wherein the step of estimating power consumption behavior expected of the at least one device includes:
determining at least one environmental characteristic expected during the future period of time at a service point at which the at least one environmentally-dependent device is located;
estimating, prior to commencement of the control event and based at least on the stored power consumption data, the at least one environmental characteristic and the maximum allowable variance of the at least one environmental characteristic, an amount of power that the at least one environmentally-dependent device would be expected to consume during the future period of time if the control event was not to occur.
12. The method of claim 11, wherein determining at least one environmental characteristic expected during the future period of time comprises:
13. The method of claim 11, wherein power consumption data associated with the service point further includes at least one of a user setting for the maximum allowable variance of the at least one environmental characteristic at the service point and information relating to operating environments in which the at least one environmentally-dependent device has operated, and wherein estimating power consumption behavior expected of the at least one environmentally-dependent device during the future period of time further comprises:
comparing the future period of time to time periods stored in the repository;
in the event that at least one time period stored in the repository corresponds to at least part of the future period of time, determining whether the repository includes power consumption data for the at least one environmentally-dependent device during the at least one time period;
determining whether at least some of the power consumption data for the at least one time period corresponds to a user setting and an environmental characteristic expected during the future period of time;
in the event that at least some of the power consumption data for the at least one time period corresponds to a user setting and an environmental characteristic expected during the future period of time, retrieving from the repository values corresponding to amounts of power that the at least one environmentally-dependent device would be expected to consume during the at least one time period if the control event was not to occur;
in the event that none of the power consumption data for the at least one time period corresponds to a user setting and an environmental characteristic expected during the future period of time, changing at least one of a search value corresponding to an expected user setting and a search value corresponding to an expected environmental characteristic to produce at least one of a changed user setting search value and a changed environmental characteristic search value; and
in the event that the repository includes at least some power consumption data for the at least one environmentally-dependent device during a time period proximate in time to the at least one time period, retrieving from the at least some power consumption data values corresponding to amounts of power that the at least one environmentally-dependent device would be expected to consume during the at least one time period if the control event was not to occur.
14. The method of claim 11, wherein the at least one environmental characteristic is at least one of air temperature, humidity, barometric pressure, wind speed, rainfall amount, and water temperature.
15. A method for estimating operating reserve of a utility servicing one or more service points, the method comprising:
determining amounts of electric power consumed by at least one device during multiple periods of time to produce power consumption data, the at least one device being located at the one or more service points and including at least one environmentally-independent device;
wherein estimating power consumption behavior expected of the at least one device during the future period of time includes:
determining whether, absent occurrence of the control event, the at least one environmentally-independent device is expected to be consuming power during the future period of time period based on the stored power consumption data;
in the event that, absent occurrence of the control event, the at least one environmentally-independent device would be consuming power during the future period of time,
estimating, based on the stored power consumption data and the duty cycle, an amount of power that the at least one environmentally-independent device would be expected to consume during the future period of time if the control event was not to occur.
16. A method for estimating operating reserve of a utility servicing one or more service points, the method comprising:
storing the power consumption data in a repository, wherein the repository includes a plurality of time periods and wherein power consumption data is stored in the repository in association with the multiple time periods during which electric power was determined to be consumed by the at least one device;
wherein estimating power consumption behavior of the at least one device includes:
in the event that the future period of time corresponds to at least one particular time period stored in the repository, determining whether the repository includes power consumption data for the at least one device during the at least one particular time period; and
in the event that the repository includes power consumption data for the at least one device during the at least one particular time period, retrieving from the repository one or more values corresponding to one or more amounts of power that the at least one device would be expected to consume during the future period of time if the control event was not to occur.
interpolating, based on the power consumption data for the at least one device during the time periods before and after the at least one particular time period, one or more values corresponding to one or more amounts of power that the at least one device would be expected to consume during the at least one particular time period if the control event was not to occur.
in the event that the future period of time does not correspond to at least one time period stored in the repository,
determining whether the repository includes power consumption data for the at least one device during time periods before and after the future period of time; and
interpolating, based on the power consumption data for the at least one device during the time periods before and after the future period of time, one or more values corresponding to one or more amounts of power that the at least one device would be expected to consume during the future period of time if the control event was not to occur.
19. A system for implementing a virtual utility that is operable to at least offer energy to one or more requesting utilities for use as operating reserve for the requesting utilities, the system comprising:
determine amounts of electric power consumed by at least one device during multiple periods of time to produce power consumption data, the at least one device being located remotely from the processor;
after storage of the power consumption data in the repository and prior to commencement of the control event, estimate, under an assumption that the control event is not to occur, power consumption behavior expected of the at least one device during a future period of time based at least on the stored power consumption data, wherein the control event is expected to occur during the future period of time;
determine, prior to commencement of the control event, energy savings expected to result from the control event based at least on the estimated power consumption behavior of the at least one device to produce projected energy savings;
manage distribution of the amount of operating reserve to at least one of the requesting utilities subsequent to commencement of the control event;
wherein determination of energy savings expected to result from the control event includes:
20. The system of claim 19, wherein the at least one processor is further operable to determine that the control event is to occur responsive to receipt of an Automatic Generation Control command.
This application is a division of U.S. application Ser. No. 12/775,979, filed on May 7, 2010, which application is incorporated herein by this reference as if fully set forth herein. Application Ser. No. 12/775,979 is a continuation-in-part of U.S. application Ser. No. 11/895,909 filed on Aug. 28, 2007, now U.S. Pat. No. 7,715,951, which application is incorporated herein by this reference as if fully set forth herein. Application Ser. No. 12/775,979 is also a continuation-in-part of co-pending U.S. application Ser. No. 12/001,819 filed on Dec. 13, 2007, which application is incorporated herein by this reference as if fully set forth herein. Finally, application Ser. No. 12/775,979 further claims priority under 35 U.S.C. §119(e) upon U.S. Provisional Application Ser. No. 61/215,725 filed on May 8, 2009 solely to the extent of the subject matter disclosed in said provisional application, which application is incorporated herein by this reference as if fully set forth herein.
where NIA is the sum of actual power flows on all tie lines,
In view of the foregoing ACE equation, the amount of loading relative to capacity on the tie lines causes the quantity (NIA−NIS) to be either positive or negative. When demand is greater than supply or capacity (i.e., the utility is under-generating or under-supplying), the quantity (NIA−NIB) is negative, which typically causes ACE to be negative. On the other hand, when demand is less than supply, the quantity (NIA−NIS) is positive (i.e., the utility is over-generating or over-supplying), which typically causes ACE to be positive. The amount of demand (e.g., load) or capacity directly affects the quantity (NIA−NIS); thus, ACE is a measure of generation capacity relative to load. Typically, a utility attempts to maintain its ACE very close zero using AGC processes.
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International Classification G05B13/02, H02J3/14, H02J3/00, G06Q10/00, G06Q50/06
Cooperative Classification Y02E40/76, G06Q10/00, H02J2003/003, G05B13/02, Y04S20/222, Y02B70/3225, G06Q50/06, Y04S10/54, H02J3/14, Y04S10/545
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