RENEWABLE ENERGY MANAGEMENT AND STORAGE SYSTEM

• US 20090189445A1
• Filed: 01/22/2009
• Published: 07/30/2009
• Est. Priority Date: 01/24/2008
• Status: Abandoned Application

• Current Assignee: Renewable Energy Holdings, LLC
• Original Assignee: Renewable Energy Holdings, LLC
• Inventors: Strizki, Michael
• Application Number:
  US12/357,649
• Publication Number:
  US 20090189445A1
• Time in Patent Office: Days
• US Class Current: 307/21
• CPC Class Codes: H02J 2300/20 The dispersed energy generation being of renewable origin
• CPC Class Codes: H02J 2300/24 of photovoltaic origin
• CPC Class Codes: H02J 2300/26 involving maximum power point tracking control for photovoltaic sources
• CPC Class Codes: H02J 2300/28 The renewable source being wind energy
• CPC Class Codes: H02J 2300/30 The power source being a fuel cell
• CPC Class Codes: H02J 3/381 Dispersed generators
• CPC Class Codes: H02J 7/34 Parallel operation in networks using both storage and other dc sources, e.g. providing buffering H02J7/14 takes precedence
• CPC Class Codes: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers
• CPC Class Codes: Y02E 10/76 Power conversion electric or electronic aspects
• CPC Class Codes: Y02P 80/20 using renewable energy

Abstract

An integrated system of renewable energy management and storage that receives direct current generated from renewable sources and intelligently routes the electrical power between a direct current circuit and an alternating current circuit, and at the same time determines the optimal routing for electrical storage based on usage and demand. Electrical power from the direct current circuit can be converted to alternating current electrical power and supplied to the alternating current circuit, or vice versa. Electrical power from either the direct current circuit or the alternating current can be stored in the energy storage subsystem. Electric energy can be further converted to and stored as gaseous hydrogen and can supply for other applications that consume gaseous hydrogen. The system can work with a connection to a utility grid or as a stand-alone system.

Claims

1. A renewable energy management and storage system, comprising:

a multifunctional power conditioner;

an energy storage subsystem; and

a smart controller,

wherein the multifunctional power conditioner is in electrical communication with a direct current electrical power circuit, and an alternating current electrical power circuit;

wherein the direct current electrical power circuit is in electrical communication with at least one renewable energy source;

wherein the multifunctional power conditioner is in electrical communication with the energy storage subsystem and the smart controller, the energy storage subsystem is also in electrical communication with the smart controller; and

whereby the smart controller intelligently routes the electrical power between the direct current circuit and the alternating current circuit via the multifunctional power conditioner, and at the same time determines the optimal routing for electrical storage based on usage and demand.

2. The system of claim 1, wherein electrical power from the direct current circuit is converted to alternating current electric power via the multifunctional power conditioner, and supplied to the alternating current circuit.

3. The system of claim 1, wherein the energy storage subsystem comprises one or more electrochemical cells.

4. The system of claim 1, wherein the energy storage subsystem comprises one or more ultracapacitors.

5. The system of claim 1, wherein the energy storage subsystem comprises:

at least one electrolyzer;

at least one fuel cell; and

at least one hydrogen storage tank,

wherein the at least one electrolyzer and the at least one fuel cell are in electrical communication with the multifunctional power conditioner and the smart controller, and the at least one electrolyzer and the at least one fuel cell are in gas communication with the at least one hydrogen storage tank.

6. The system of claim 5, wherein electrical power from the direct current circuit is conditioned via the multifunctional power conditioner, and supplied to the electrolyzer.

7. The system of claim 5, wherein direct current electrical power from the fuel cell is converted to alternating current electric power via the multifunctional power conditioner, and supplied to the alternating current circuit.

8. The system of claim 5, wherein the hydrogen storage tank comprises a port for gaseous hydrogen output.

9. The system of claim 1, wherein the multifunctional power conditioner is also in electrical communication with a public utility grid.

10. The system of claim 9, wherein electrical power from the public utility grid is stored in the energy storage subsystem.

11. The system of claim 9, wherein energy stored in the energy storage subsystem is extracted and converted to alternating current electric energy to supply the alternating current circuit.

12. The system of claim 9, wherein electrical power from the direct current circuit is converted to alternating current electric power via the multifunctional power conditioner, and transmitted to the public utility grid.

13. The system of claim 1, wherein the multifunctional power conditioner and the smart controller are housed in a unitary enclosure.

14. The system of claim 5, wherein the multifunctional power conditioner, electrolyzer, fuel cell, and the smart controller are housed in a unitary enclosure.

15. A Smart Controller for a renewable energy management and storage system, comprising:

a sensor input module, wherein at least one sensor input from at least one component of the renewable energy management and storage system is received;

a processor, wherein the sensor input is processed; and

a controller, wherein at least one control signal is sent to at least one component of the renewable energy management and storage system.

16. The Smart Controller of claim 15, wherein the at least one component of the renewable energy management and storage system is one or more of a multifunctional power conditioner, a fuel cell, an electrolyzer, an electrochemical cell, and a hydrogen storage tank.

17. A multifunctional power conditioner for a renewable energy management and storage system, comprising:

a direct current input converter;

a direct current buck/boost;

a direct current to alternating current inverter; and

a direct current bus,

wherein each of the direct current input converter, the direct current buck/boost, and the direct current to alternating current inverter are in electrical communication with the direct current bus.

18. The multifunctional power conditioner of claim 17, further comprising a digital signal processor.

19. The multifunctional power conditioner of claim 17, wherein the direct current input converter, the direct current buck/boost, and the direct current to alternating current inverter are integrated into a controller using high frequency switching technology.