Modular energy storage method and system

• US 9,929,594 B2
• Filed: 05/26/2015
• Issued: 03/27/2018
• Est. Priority Date: 05/26/2015
• Status: Active Grant

• Current Assignee: Fluence Energy LLC (AES Corporation)
• Original Assignee: AES Corporation
• Inventors: Shelton, John C., Geinzer, Jay, Galura, Brett, Jefferson, Isaiah, Jacobson, Jr., Wells Case
• Primary Examiner(s): Patel, Ramesh
• Application Number:
  US14/721,582
• Publication Number:
  US 20160352144A1
• Time in Patent Office: 1,036 Days
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: H02J 13/00006 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 3/32 using batteries with converting means
• CPC Class Codes: H02J 9/062 for AC powered loads
• 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 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 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 10/14 Energy storage units
• 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 20/20 End-user application control systems
• CPC Class Codes: Y04S 20/248 UPS systems or standby or emergency generators
• CPC Class Codes: Y04S 40/12 characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment

Abstract

A control subsystem configured to control transferring of power, including: an AC/DC power supply; an uninterruptable power supply; a processor; an Ethernet switch; a first communication interface configured to send and/or receive data from a battery management unit that monitors a storage subsystem including one or more batteries; a first transfer interface configured to transmit power to the storage subsystem; a second communication interface configured to send and/or receive data from a power subsystem that includes a power converter, and the power subsystem is configured to be connected to a power line; and a second transfer interface configured to transmit power to the power subsystem, wherein the processor is configured to send signals which control the charging and discharging of at least one battery of the one or more batteries in the storage subsystem.

Claims

1. A control subsystem configured to control transferring of power, comprising:

an AC or DC power supply;

an uninterruptable power supply;

a processor;

an Ethernet switch;

a first communication interface configured to send and/or receive data from a storage subsystem that monitors one or more batteries;

a first transfer interface configured to transmit power to the storage subsystem;

a second communication interface configured to send and/or receive data from a power subsystem that includes a power converter, and the power subsystem is configured to be connected to a power line; and

a second transfer interface configured to transmit power to the power subsystem,

wherein the processor is configured to send signals which control the charging and discharging of at least one battery of the one or more batteries in the storage subsystem.

2. The control subsystem of claim 1, wherein the processor receives battery data from the storage subsystem, and based on information in the received battery data, the processor instructs the power subsystem to control the at least one battery.

3. The control subsystem of claim 1, wherein the processor is configured to optimize health and performance of the one or more batteries in the storage subsystem.

4. The control subsystem of claim 1, wherein the processor is configured to monitor an operational status of the one or more batteries.

5. The control subsystem of claim 1, wherein the control subsystem is configured to be mounted to a rack.

6. The control subsystem of claim 5, wherein the power subsystem and the storage subsystem are also configured to be mounted to the rack.

7. The control subsystem of claim 1, further comprising:

a port that allows the processor to be programmed or reprogrammed.

8. The control subsystem of claim 1, further comprising:

an indicator which indicates the status of the control subsystem and/or of an energy storage node.

9. The control subsystem of claim 1, further comprising:

memory card interface configured to accept a removable memory card.

10. The control subsystem of claim 1, further comprising:

a proximity sensor configured to sense a person or object in a vicinity of the control subsystem, and when a person or object is sensed in the vicinity of the control subsystem, the behavior of the control subsystem is modified.

11. The control subsystem of claim 1, wherein a housing of the control subsystem contains the AC/DC power supply, the processor, and the Ethernet switch, and the housing includes the first communication interface, the first transfer interface, the second communication interface, and the second transfer interface.

12. The control subsystem of claim 11, wherein the power subsystem has a housing separate from the housing of the control subsystem.

13. A power storage and distribution system, comprising:

a node including;

a storage subsystem, a control subsystem, and a power subsystem;

the storage subsystem includes one or more batteries which are removable and chargeable and/or dischargeable, and the storage subsystem includes a processor that is configured to monitor at least one batten of the one or more batteries, and is configured to communicate with the control subsystem;

the power subsystem is configured to be connected to a power line, and the power subsystem includes a power converter which converts AC power to DC power when the at least one battery is being charged, and converts DC power to AC power when the at least one battery is being discharged; and

the control subsystem is connected to the storage subsystem and is connected to the power subsystem, the control subsystem includes a processor, and the processor is configured to control transferring of power between the storage subsystem and the power subsystem, and the control subsystem includes an uninterruptable power supply,

wherein the processor is configured to send signals which control the charging and discharging of the at least one battery, and

wherein the processor is configured to monitor an operational status of the one or more batteries.

14. The power storage and distribution system of claim 13, wherein the control subsystem includes:

an AC or DC power supply;

a processor;

an Ethernet switch;

a first communication interface configured to send and/or receive data from the storage subsystem;

a first transfer interface configured to transmit power to the storage subsystem;

a second communication interface configured to send and/or receive data from the power subsystem; and

a second transfer interface configured to transmit power to the power subsystem.

15. A power system comprising a plurality of nodes as defined in claim 13.

16. The power storage and distribution system of claim 13, wherein the processor receives battery data from the storage subsystem, and based on information in the received battery data and a request from a central or distributed control system, the processor instructs the power subsystem to control the at least one battery.

17. The power storage and distribution system of claim 13, wherein the processor is configured to optimize health and performance of the one or more batteries in the storage subsystem.

18. The power storage and distribution system of claim 13, further comprising a storage rack configured to securely hold the storage subsystem, the control subsystem, and the power subsystem, and the storage rack conforms to ETSI, EIA, IEC, CEA or DIN rack standards.

19. The power storage and distribution system of claim 13, further comprising:

a proximity sensor configured to sense a person or object in a vicinity of the node, and when a person or object is sensed in the vicinity of the node, the behavior of the node, control subsystem, storage subsystem, or power subsystem is modified.

20. A power storage and distribution system, comprising:

a plurality of nodes, each node including;

a storage subsystem, a control subsystem, and a power subsystem;

the storage subsystem includes one or more batteries which are removable and chargeable, and the storage subsystem includes a processor that is configured to monitor at least one battery of the one or more batteries, and is configured to communicate with the control subsystem;

the power subsystem is configured to be connected to a power line, and the power subsystem includes a power converter which converts AC power to DC power when the at least one battery is charged, and converts DC power to AC power when the at least one battery is discharged;

the control subsystem is connected to the storage subsystem and is connected to the power subsystem, the control subsystem includes a processor, and the processor is configured to control transferring of power between the storage subsystem and the power subsystem,

wherein the processor is configured to send signals which control the charging and discharging of the at least one battery, and

wherein the processor is configured to monitor an operational status of the one or more batteries; and

a unit control subsystem connected to each of the plurality of nodes, and the unit control subsystem is configured to monitor a current state of the plurality of nodes.

21. The power storage and distribution system of claim 20, wherein the unit control subsystem is configured to monitor a charge/discharge capacity of the plurality of nodes.

22. The power system of claim 21, wherein the site control subsystem is configured to optimize health and performance of components in the plurality of unit control subsystems.

23. The power storage and distribution system of claim 20, wherein the unit control subsystem is configured to optimize health and performance of the storage subsystems, the power subsystems, and the control subsystems in the plurality of nodes.

24. A power system comprising a plurality of unit control subsystems as defined in claim 20, wherein each unit control subsystem is connected to a plurality of nodes.

25. A power system comprising a site control subsystem connected to each of the plurality of unit control subsystems of claim 24.

26. The power system of claim 25, wherein the site control subsystem is configured to monitor a charge/discharge capacity of the plurality of unit control subsystems.