INTELLIGENT BATTERY BACKUP AT A DISTRIBUTED GRID NODE

• US 20160204610A1
• Filed: 07/04/2015
• Published: 07/14/2016
• Est. Priority Date: 07/04/2014
• Status: Abandoned Application

• Current Assignee: Xslent Energy Technologies, LLC
• Original Assignee: Xslent Energy Technologies, LLC
• Inventors: Matan, Stefan, Horton, Fred C., Marrone, Frank P., Borzini, Clayton
• Application Number:
  US14/791,439
• Publication Number:
  US 20160204610A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01R 11/54 for measuring simultaneously at least two of the following three variables: real component, reactive component, apparent energy
• CPC Class Codes: G05B 13/026 using a predictor
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G05F 1/66 Regulating electric power
• CPC Class Codes: G06G 7/635 for determining the most economical distribution in power systems
• CPC Class Codes: H02J 13/00 Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
• CPC Class Codes: H02J 13/00002 characterised by monitoring
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 2300/20 The dispersed energy generation being of renewable origin
• CPC Class Codes: H02J 2310/10 The network having a local or delimited stationary reach
• CPC Class Codes: H02J 2310/16 The load or loads being an Information and Communication Technology [ICT] facility
• CPC Class Codes: H02J 3/00 Circuit arrangements for ac mains or ac distribution networks
• CPC Class Codes: H02J 3/01 Arrangements for reducing harmonics or ripples
• CPC Class Codes: H02J 3/06 Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
• CPC Class Codes: H02J 3/12 for adjusting voltage in ac networks by changing a characteristic of the network load
• CPC Class Codes: H02J 3/18 Arrangements for adjusting, eliminating or compensating reactive power in networks for adjustment of voltage H02J3/16
• CPC Class Codes: H02J 3/28 Arrangements for balancing of the load in a network by storage of energy
• CPC Class Codes: H02J 3/38 Arrangements for parallely feeding a single network by two or more generators, converters or transformers
• CPC Class Codes: H02J 3/381 Dispersed generators
• CPC Class Codes: H02M 1/42 : Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• CPC Class Codes: Y02B 70/30 : Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02B 70/3225 : Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02B 90/20 : Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y02E 10/56 : Power conversion systems, e.g. maximum power point trackers
• CPC Class Codes: Y02E 40/30 : Reactive power compensation
• CPC Class Codes: Y02E 40/40 : Arrangements for reducing harmonics
• CPC Class Codes: Y02E 40/70 : Smart grids as climate change mitigation technology in the energy generation sector
• CPC Class Codes: Y04S 10/123 : the energy generation units being or involving renewable energy sources
• CPC Class Codes: Y04S 20/12 : Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
• CPC Class Codes: Y04S 20/221 : General power management systems
• CPC Class Codes: Y04S 20/222 : Demand response systems, e.g. load shedding, peak shaving

Abstract

Distributed grid network intelligence enables intelligent local energy storage backup control. A consumer node includes a local energy storage system. A distributed control node for the consumer node monitors local power demand and local energy generation. The control node calculates an interface operation for accessing energy from the local energy storage or charging the local energy storage, based on the local power demand and the local energy generation. The control node triggers a local power converter to execute the interface operation with the local energy storage.

Claims

1. A method for interfacing with a power grid network, comprising:

monitoring local power demand and local energy generation on a consumer side of a point of common coupling (PCC) to the grid network;

calculating an interface operation for a local energy storage on the consumer side of the PCC, wherein the interface operation includes accessing energy from the local energy storage or charging the local energy storage, based on the local power demand, and the local energy generation; and

triggering a local power converter coupled to the consumer side of the PCC to execute the interface operation with the local energy storage.

2. The method of claim 1, wherein the local energy storage comprises a battery.

3. The method of claim 1, wherein the local energy storage comprises a non-battery energy storage system.

4. The method of claim 1, further comprising monitoring a grid condition on the consumer side of the PCC, wherein the grid condition indicates an electrical condition of the grid network;

and wherein calculating the interface operation comprises generating an operation to charge the local energy storage from the grid network.

5. The method of claim 4, wherein monitoring the grid condition comprises monitoring one or more of voltage levels, phases, or frequencies, as seen at the PCC.

6. The method of claim 4, wherein monitoring the local energy generation comprises monitoring an amount of power generated by a local source coupled to the consumer side of the PCC that generates real power.

7. The method of claim 1, wherein calculating the interface operation comprises generating an operation to charge the local energy storage from the grid network.

8. The method of claim 1, wherein calculating the interface operation comprises generating an operation to charge the local energy storage from a local energy source.

9. The method of claim 1, wherein calculating the interface operation comprises generating an operation to power a local load from the local energy storage.

10. The method of claim 9, wherein triggering the power converter to execute the interface operation comprises triggering the power converter to generate a mix of real and reactive power.

11. The method of claim 1, wherein calculating the interface operation comprises generating an operation to provide grid support from the local energy storage.

12. The method of claim 1, wherein calculating an interface operation further comprises performing calculations based at least in part on aggregation data, the aggregation data including one or more of dispatch information from a central grid controller, specific control signals from a grid controller, grid condition information from other nodes in the grid network, local temperature information, or information regarding one or more local conditions that affect an amount of local energy generation.

13. A consumer node within a power grid system, comprising:

a local energy source on a consumer side of a point of common coupling (PCC) to the grid network;

a local energy store on the consumer side of the PCC;

an energy conversion device on the consumer side of the PCC to execute an interface operation, including accessing energy from the local energy store or charging the local energy store, to transfer energy between the local energy store and the PCC.

14. The consumer node of claim 13, wherein the local energy source comprises a solar power system at a customer premises.

15. The consumer node of claim 13, wherein the local energy store comprises a battery.

16. The consumer node of claim 13, wherein the energy conversion device is to execute the interface operation to perform one of charge the local energy store from the grid network or charge the local energy store from the local energy source.

17. The consumer node of claim 13, wherein the energy conversion device is to execute the interface operation to perform one of powering a local load from the local energy store or providing grid support from the local energy store.

18. The consumer node of claim 13, further comprising a local metering device coupled to the consumer side of the PCC, the metering device to calculate an interface operation for the energy conversion device to execute, including performing calculations based at least in part on aggregation data, the aggregation data including one or more of dispatch information from a central grid controller, specific control signals from a grid controller, grid condition information from other nodes in the grid network, local temperature information, or information regarding one or more local conditions that affect an amount of local energy generation.

19. A power grid system, comprising:

a local energy source coupled to a consumer side of a point of common coupling (PCC) to a grid network of a utility power grid, the local energy source to generate real power; and

a local energy store on the consumer side of the PCC;

a control node coupled to the local energy source and the local energy store at the PCC, the control node including

a metering device to monitor a grid condition on the consumer side of the PCC, wherein the grid condition indicates an electrical condition of the grid network;

an energy conversion device to execute an interface operation, including accessing energy from the local energy store or charging the local energy store, to transfer energy between the local energy store and the PCC in response to a condition of the utility power grid.

20. The power grid system of claim 19, wherein the energy conversion device is to execute the interface operation to perform one of charge the local energy store from the grid network, charge the local energy store from the local energy source, powering a local load from the local energy store, or providing grid support from the local energy store.