Integrated demand response for energy utilization

• US 8,676,394 B2
• Filed: 06/16/2011
• Issued: 03/18/2014
• Est. Priority Date: 06/30/2010
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Lo, George, Gruenewald, Thomas, Muenzel, Georg
• Primary Examiner(s): Ali, Mohammad
• Assistant Examiner(s): Booker, Kelvin
• Application Number:
  US13/161,730
• Publication Number:
  US 20120004783A1
• Time in Patent Office: 1,006 Days
• Field of Search: None
• US Class Current: 700/295
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: H02J 2310/52 The controlling of the operation of the load not being the total disconnection of the load, i.e. entering a degraded mode or in current limitation
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: H02J 3/28 Arrangements for balancing of the load in a network by storage of energy
• 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
• CPC Class Codes: Y04S 50/16 Energy services, e.g. dispersed generation or demand or load or energy savings aggregation

Abstract

A method for managing power consumption within a facility includes receiving a request to reduce a total level of power consumption within the facility by a predetermined measure (S23). A plurality of operating parameters indicative of how much power is being consumed by each of a plurality of facility systems is received (S21). A corresponding cost associated with a marginal power reduction is determined for each of the plurality of facility systems using the received plurality of operating parameters (S24). A power allocation to the facility system of the plurality of facility systems that is determined to have a lowest marginal cost of power reduction is incrementally reduced (S25). The steps of determining a corresponding cost and incrementally reducing power are repeated until the total level of power consumption within the facility has been reduced by the predetermined measure.

Claims

1. A method for managing power consumption within a power-consuming facility, comprising:

receiving, by a demand response orchestrator unit located within the facility, a request to reduce a total level of power consumption within the facility by a predetermined measure, the request having been sent by a power-generating entity;

receiving a plurality of operating parameters indicative of how much power is being consumed by each of a plurality of facility systems of the facility;

determining a corresponding cost associated with a marginal power reduction for each of the plurality of facility systems using the received plurality of operating parameters;

incrementally reducing a power allocation to the facility system of the plurality of facility systems that is determined to have a lowest marginal cost of power reduction; and

repeating the steps of determining a corresponding cost and incrementally reducing power until the total level of power consumption within the facility has been reduced by the predetermined measure.

2. The method of claim 1, wherein determining a corresponding cost associated with a marginal power reduction for each of the plurality of facility systems includes estimating energy consumption based on the received plurality of operating parameters.

3. The method of claim 2, wherein the received plurality of operating parameters includes various sensor readings obtained from a network of sensors distributed throughout the facility.

4. The method of claim 2, wherein the received plurality of operating parameters includes data relating to estimated future operating conditions of the facility.

5. The method of claim 4, wherein the estimated future operating conditions of the facility includes a weather forecast.

6. The method of claim 1, wherein the request to reduce a total level of power consumption within the facility by a predetermined measure includes a request to reduce a maximum level of instantaneous power drawn from a power grid.

7. The method of claim 1, wherein the request to reduce a total level of power consumption within the facility by a predetermined measure includes a request to reduce a total level of power drawn from a power grid over a particular period of time.

8. The method of claim 1, wherein determining the corresponding cost associated with the marginal power reduction for each of the plurality of facility systems includes utilizing an artificial intelligence system.

9. The method of claim 8, wherein the artificial intelligence system utilizes a rules database or heuristic algorithms.

10. The method of claim 8, wherein the artificial intelligence system utilizes a one or more heuristic algorithms.

11. The method of claim 1, wherein in addition to incrementally reducing a power allocation to the facility system of the plurality of facility systems that is determined to have a lowest marginal cost of power reduction, reduction of the total level of power consumption within the facility is achieved by reallocated power between multiple facility systems of the plurality of facility systems.

12. The method of claim 1, wherein in addition to incrementally reducing a power allocation to the facility system of the plurality of facility systems that is determined to have a lowest marginal cost of power reduction, reduction of the total level of power consumption within the facility is achieved by rescheduling an operation of one or more of the plurality of facility systems.

13. A method for managing power demand from a particular power source within a facility, comprising:

receiving a request to reduce a total level of power demanded from the particular power source within the facility by a predetermined measure;

receiving a schedule of power needs for each of a plurality of facility systems;

determining a corresponding cost associated with a marginal power reduction for each of the plurality of facility systems using the received plurality of operating parameters;

determining a cost associated with increasing marginal power generation;

incrementally reducing the power demand from the particular power source while satisfying the received schedule of power needs for each of the plurality of facility systems by performing one of marginally reducing power for one of the plurality of facility systems and marginally increasing power generation according to a lowest determined cost; and

repeating the steps of determining a corresponding cost associated with a marginal power reduction for each of the plurality of facility systems, determining a cost associated with increasing marginal power generation, and incrementally reducing power demand until the total level of power demanded from the particular power within the facility has been reduced by the predetermined measure.

14. The method of claim 13, wherein increasing power generation includes generating power for utilization by the plurality of facility systems by combustion of fossil fuels.

15. The method of claim 13, wherein increasing power generation includes generating power for utilization by the plurality of facility systems by harnessing solar or wind power.

16. The method of claim 15, wherein an extent to which the request to reduce a total level of power demanded from the particular power source can be satisfied by harnessing solar or wind power is determined and incrementally reducing the power demand from the particular power source includes harnessing available solar or wind power prior to marginally reducing power for one of the plurality of facility systems and marginally increasing power generation according to a lowest determined cost.

17. The method of claim 13, wherein increasing power generation includes generating power for utilization by the plurality of facility systems by exploiting previously stored power.

18. A system for managing power consumption within a power-consuming facility, comprising:

a rules database including rules governing how to generate, store, retrieve, acquire, and allocate available power between a plurality of facility systems of the facility including power-consuming devices, power-generating devices, and power-storing devices;

a demand response orchestrator for receiving a request to reduce a total level of power consumption within the facility by a predetermined measure, the request having been sent by a power-generating entity, receiving a plurality of parameters as inputs, reading the rules of the rules database, and generating a plurality of control signals for controlling the generation, storage, retrieval, acquisition, and allocation of the available power between the plurality of facility systems to satisfy the request; and

a plurality of sensors and meters located throughout the facility for generating at least some of the plurality of parameters and sending the generated parameters to the orchestrator.

19. The system of claim 18, wherein the power-consuming devices include an air temperature control system or manufacturing systems.

20. The system of claim 18, wherein the power-generating devices include a fossil fuel-powered generator or a renewable energy generator.

21. The system of claim 18, additionally including an Internet connection for providing parameters to the orchestrator by subscription.