INTELLIGENT DISTRIBUTED ENERGY STORAGE SYSTEM FOR DEMAND SIDE POWER MANAGEMENT

• US 20040263116A1
• Filed: 06/28/2004
• Published: 12/30/2004
• Est. Priority Date: 06/30/2003
• Status: Active Grant

• Current Assignee: Stem, Inc.
• Original Assignee: Gaia Power Technologies, Inc. (iPower Systems Ltd.)
• Inventors: Doruk, Zeynep B., Olsen, Ib I., Pasquale, Nicholas Blaise
• Granted Patent: US 7,385,373 B2
• Time in Patent Office: Days
• US Class Current: 320/107
• CPC Class Codes: F01K 13/00 General layout or general methods of operation of complete plants
• CPC Class Codes: H02J 3/008 involving trading of energy or energy transmission rights
• CPC Class Codes: H02J 3/28 Arrangements for balancing of the load in a network by storage of energy
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

The current invention is an intelligent distributed energy storage system for demand side power management. It provides a system that can store electric energy close to the point of use or close to the distributed production for use when demanded by the users. These storage nodes can communicate with a central clearing entity to negotiate if the nodes should buy energy for storage, provide energy to the user above a given power level, or sell power back to the grid. The function will depend on the amount of energy stored in the node, the cost of the electric energy, the cost of the electric peak power, the price of resold electrical energy and power, plus the local usage.

Claims

1. A power storage device, comprising:

a controller, a communication means, an energy storage means, a charging means and a discharging means where said controller is connected to said communication means and said charging means and discharging means are connected to said energy storage means.

4. A device as in claim 1 wherein said controller monitors and controls the device.

5. A device as in claim 1 wherein said controller forecasts the demand for electricity.

6. A device as in claim 1 wherein said energy storage means consists of a battery.

7. A device as in claim 1 wherein said energy storage means consists of potential energy.

8. A device as in claim 1 wherein said device is connected to a power grid.

9. A device as in claim 8 wherein said charging device on demand converts electricity from the power grid to power that is stored in the energy storage means.

10. A device as in claim 1 where said discharging means on demand converts stored energy from said energy storage device to electricity.

11. A device as in claim 10 where said electricity is transferred to a power grid.

12. A power system comprising:

a plurality of device from claim 1 which are connected in a communication network and a plurality of power grids.

13. A system as in claim 12 where said devices are connected in a peer-to-peer network.

14. A system as in claim 12 where said devices are connected in a centralized network.

15. A system as in claim 12 where said devices are connected in a network that function as a centralized network and a peer-to-peer network.

16. A system as in claim 12 where said network will communication to said communication means of said device and control the discharging and charging of said energy storage means through the charging means and the discharging means.

17. A system as in claim 16 wherein said discharging and charging of said energy storage means is based on power need of said power grid.

18. A system as in claim 12 wherein said device is connected to a power generation source.

19. A system as in claim 12 where said devices are connected and controlled by a central clearinghouse.

2. A device as in claim 2 where said communication means communicates to external sources.

3. A device as in claim 3 where said communication means communicates to external sources through a wireless communication.

20. A power device comprising:

a control unit that controls operation of the device and control the communication through the communication module, said control unit will monitor and control the performance of the device, electricity from an external source is fed into a charging means that upon demand converts the electricity to a form of energy acceptable by a energy storage means, this energy is released upon demand to the discharging means, which converts the stored energy to electricity.