Distributed fuel cell network

• US 20040081867A1
• Filed: 10/23/2002
• Published: 04/29/2004
• Est. Priority Date: 10/23/2002
• Status: Abandoned Application

• Current Assignee: IdaTech LLC (IdaTech Ltd.)
• Original Assignee: IdaTech LLC (IdaTech Ltd.)
• Inventors: Edlund, David J.
• Application Number:
  US10/280,015
• Publication Number:
  US 20040081867A1
• Time in Patent Office: Days
• US Class Current: 429/22
• CPC Class Codes: H01M 8/0432 Temperature; Ambient temperature
• CPC Class Codes: H01M 8/0438 Pressure; Ambient pressure; Flow
• CPC Class Codes: H01M 8/0444 Concentration; Density H01M8/04492 takes precedence
• CPC Class Codes: H01M 8/04604 Power, energy, capacity or load
• CPC Class Codes: H01M 8/04679 of fuel cell stacks
• CPC Class Codes: H01M 8/04992 characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
• CPC Class Codes: H01M 8/0612 from carbon-containing material
• CPC Class Codes: Y02E 60/50 Fuel cells

Abstract

A distributed fuel cell network and communication systems and subassemblies for use therein. The network includes at least one, and typically a plurality of, fuel cell systems. Each fuel cell system includes a fuel cell stack that is adapted to produce an electric current from oxygen and a source of protons, such as hydrogen gas. The fuel cell systems further include communication subsystems that enable remote monitoring and/or control of the fuel cell systems from a remotely located servicing system, which includes a corresponding communication subsystem. The remotely located servicing system is adapted to monitor and/or control the operation of the fuel cell systems and in some embodiments may include a redundancy of remote servicing units. In some embodiments, the fuel cell systems also include local controllers, while in other embodiments the fuel cell systems do not include local controllers.

Claims

1. A distributed fuel cell network, comprising:

at least one fuel cell system, comprising;

a fuel cell stack configured to produce an electric current from a fuel and an oxidant;

a measurement subsystem adapted to measure one or more operating parameters of the fuel cell system, wherein the one or more operating parameters at least partially define an operating state of the fuel cell system; and

a fuel cell system communication subsystem in communication with the measurement subsystem and configured to transmit the one or more operating parameters to a remote servicing system; and

a remote servicing system remotely located relative to the at least one fuel cell system, the remote servicing system comprising;

a remote servicing system communication subsystem configured to receive the one or more operating parameters transmitted from the at least one fuel cell system; and

a processing subsystem in communication with the remote servicing system and adapted to service the at least one fuel cell system at least partially in response to the one or more operating parameters transmitted from the at least one fuel cell system.

2. The distributed fuel cell network of claim 1, wherein the remote servicing system is configured to selectively transmit operating instructions to the at least one fuel cell system, and further wherein the at least one fuel cell system is configured to alter its operating state at least partially in response to operating instructions received from the remote servicing system.

3. The distributed fuel cell network of claim 1, wherein the servicing includes analyzing the one or more operating parameters to predict a future operating state of the at least one fuel cell system.

4. The distributed fuel cell network of claim 3, wherein the servicing further includes sending operating instructions to the at least one fuel cell system at least partially in response to the one or more operating parameters received from the at least one fuel cell system.

5. The distributed fuel cell network of claim 1, wherein the servicing includes analyzing the one or more operating parameters to predict a future deviation of the at least one fuel cell system from the operating state.

6. The distributed fuel cell network of claim 5, wherein the servicing further includes sending operating instructions to the at least one fuel cell system at least partially in response to the one or more operating parameters received from the at least one fuel cell system.

7. The distributed fuel cell network of claim 1, wherein the servicing includes analyzing the one or more operating parameters over time to predict a future operating state of the at least one fuel cell system.

8. The distributed fuel cell network of claim 7, wherein the servicing further includes sending operating instructions to the at least one fuel cell system at least partially in response to the one or more operating parameters received from the at least one fuel cell system.

9. The distributed fuel cell network of claim 1, wherein the servicing includes displaying via a user interface information corresponding to the one or more operating parameters.

10. The distributed fuel cell network of claim 9, wherein the servicing further includes receiving one or more user inputs at the remote servicing system and sending operating instructions to the at least one fuel cell system responsive at least in part to the user inputs.

11. The distributed fuel cell network of claim 1, wherein the servicing includes storing the transmitted one or more operating parameters.

12. The distributed fuel cell network of claim 1, wherein the servicing includes sending operating instructions to the at least one fuel cell system.

13. The distributed fuel cell network of claim 1, wherein the servicing includes sending operating instructions to the at least one fuel cell system responsive at least in part to the one or more operating parameters received from the at least one fuel cell system.

14. The distributed fuel cell network of claim 1, wherein each fuel cell system includes a local controller adapted to service the fuel cell system.

15. The distributed fuel cell network of claim 14, wherein the local controller is adapted to communicate with the remote servicing system.

16. The distributed fuel cell network of claim 1, wherein the fuel cell network includes a plurality of fuel cell systems.

17. The distributed fuel cell network of claim 16, wherein each of the plurality of fuel cell systems is remotely located relative to the remote servicing system.

18. The distributed fuel cell network of claim 17, wherein the network further includes at least one local fuel cell system proximately located relative to the remote servicing system.

19. The distributed fuel cell network of claim 16, wherein each of the plurality of fuel cell systems is remotely located relative to the other fuel cell systems.

20. The distributed fuel cell network of claim 1, wherein the at least one fuel cell system is physically separated from the remote servicing system and in communication therewith via at least one communication linkage.

21. The distributed fuel cell network of claim 20, wherein the at least one communication linkage includes a wired communication network.

22. The distributed fuel cell network of claim 20, wherein the at least one communication linkage includes a wireless communication network.

23. The distributed fuel cell network of claim 20, wherein the at least one communication linkage includes a public communication network.

24. The distributed fuel cell network of claim 20, wherein the at least one communication linkage includes a dedicated communication network.

25. The distributed fuel cell network of claim 1, wherein the fuel includes hydrogen gas and the oxidant includes oxygen.

26. The distributed fuel cell network of claim 25, wherein each fuel cell system includes a source of hydrogen gas.

27. The distributed fuel cell network of claim 26, wherein the measurement subsystem is further adapted to measure one or more operating parameters of the source of hydrogen gas.

28. The distributed fuel cell network of claim 26, wherein the source of hydrogen gas includes at least one hydrogen storage device.

29. The distributed fuel cell network of claim 28, wherein the at least one hydrogen storage device includes at least one of a pressurized tank containing hydrogen gas and a hydride bed containing hydrogen gas.

30. The distributed fuel cell network of claim 26, wherein the source of hydrogen gas includes a fuel processor adapted to produce a product hydrogen stream comprising at least substantially pure hydrogen gas from a feed stream.

31. The distributed fuel cell network of claim 30, wherein the measurement subsystem is adapted to measure one or more operating parameters of the fuel processor.

32. The distributed fuel cell network of claim 31, wherein the measurement subsystem is further adapted to measure one or more operating parameters of the fuel cell stack.

33. The distributed fuel cell network of claim 30, wherein the at least one fuel cell system includes a housing within which the fuel cell stack and the fuel processor are housed.

34. The distributed fuel cell network of claim 30, wherein the feed stream comprises water and a carbon-containing feedstock.

35. The distributed fuel cell network of claim 34, wherein the fuel processor is adapted to produce a mixed gas stream containing hydrogen gas and other gases by steam reforming the feed stream, and further wherein the product hydrogen stream is formed from the mixed gas stream.

36. The distributed fuel cell network of claim 35, wherein the fuel processor includes a separation assembly adapted to receive the mixed gas stream and to produce a byproduct stream and a product stream therefrom, wherein the byproduct stream contains at least a substantial portion of the other gases, the product stream contains at least substantially pure hydrogen gas, and the product hydrogen stream is formed from the product stream.

37. The distributed fuel cell network of claim 36, wherein the separation assembly includes at least one hydrogen-selective membrane.

38. A fuel cell system configured for remote communication, the fuel cell system comprising:

a fuel source;

an oxidant source;

a fuel cell stack configured to produce an electric current from fuel received from the fuel source and oxidant received from the oxidant source;

a measurement subsystem operatively coupled to the fuel cell stack and configured to determine one or more operating parameters of the fuel cell system, wherein the one or more operating parameters at least partially define an operating state of the fuel cell system, and

a fuel cell system communication subsystem in communication with the measurement subsystem and configured to transmit the one or more operating parameters to a remote servicing system.

39. The fuel cell system of claim 38, wherein the fuel source includes a source of hydrogen gas.

40. The fuel cell system of claim 39, wherein the measurement subsystem is further adapted to measure one or more operating parameters of the source of hydrogen gas.

41. The fuel cell system of claim 39, wherein the source of hydrogen gas includes at least one hydrogen storage device.

42. The fuel cell system of claim 41, wherein the at least one hydrogen storage device includes at least one of a pressurized tank containing hydrogen gas and a hydride bed containing hydrogen gas.

43. The fuel cell system of claim 39, wherein the source of hydrogen gas includes a fuel processor adapted to produce a product hydrogen stream comprising at least substantially pure hydrogen gas from a feed stream.

44. The fuel cell system of claim 43, wherein the measurement subsystem is adapted to measure one or more operating parameters of the fuel processor.

45. The fuel cell system of claim 44, wherein the measurement subsystem is further adapted to measure one or more operating parameters of the fuel cell stack.

46. The fuel cell system of claim 43, wherein each fuel cell system includes a housing within which the fuel cell stack and the fuel processor are housed.

47. The fuel cell system of claim 43, wherein the feed stream comprises water and a carbon-containing feedstock.

48. The fuel cell system of claim 47, wherein the fuel processor is adapted to produce a mixed gas stream containing hydrogen gas and other gases by steam reforming the feed stream, and further wherein the product hydrogen stream is formed from the mixed gas stream.

49. The fuel cell system of claim 48, wherein the fuel processor includes a separation assembly adapted to receive the mixed gas stream and to produce a byproduct stream and a product stream therefrom, wherein the byproduct stream contains at least a substantial portion of the other gases, the product stream contains at least substantially pure hydrogen gas, and the product hydrogen stream is formed from the product stream.

50. The fuel cell system of claim 49, wherein the separation assembly includes at least one hydrogen-selective membrane.

51. The fuel cell system of claim 38, wherein the fuel cell system further comprises a local controller adapted to control the operation of the fuel cell system.

52. The fuel cell system of claim 51, wherein the local controller is adapted to receive control signals from the remote servicing system and to control the operation of the fuel cell system at least partially responsive thereto.

53. The fuel cell system of claim 51, wherein the local controller is in communication with the measurement subsystem and is adapted to control the operation of the fuel cell system at least partially responsive to the one or more operating parameters determined by the measurement subsystem.

54. The fuel cell system of claim 38, wherein the fuel cell system does not include a local controller adapted to control the operation of the fuel cell system.

55. The fuel cell system of claim 38, wherein each of the at least one fuel cell system is located at least 50 feet away from the remote servicing system.

56. The fuel cell system of claim 55, wherein each of the at least one fuel cell system is located at least one mile away from the remote servicing system.

57. A method of servicing a remotely located fuel cell system, the method comprising:

receiving transmitted operating parameters from a fuel cell system, wherein the operating parameters model an operating state of the fuel cell system; and

remotely monitoring the operating state of the fuel cell system via the transmitted operating parameters.

58. The method of claim 57, further comprising transmitting operating instructions to the remotely located fuel cell system, wherein the operating instructions are configured to alter the operating state of the fuel cell system.

59. The method of claim 57, wherein the operating instructions are configured to activate operation of the fuel cell system.

60. The method of claim 59, wherein the operating instructions are configured to deactivate operation of the fuel cell system.

61. The method of claim 57, further comprising transmitting a notification configured to provide information regarding the operating state of the fuel cell system.

62. A method of preventing fuel cell system failure, the method comprising:

receiving transmitted operating parameters from a remotely located fuel cell system, wherein the operating parameters model at least a portion of an operating state of the fuel cell system, wherein the fuel cell system includes at least one fuel cell stack adapted to produce an electric current from a fuel and an oxidant;

remotely monitoring the operating state of the fuel cell system via the transmitted operating parameters;

analyzing the operating state to detect at least one of an impending failure and a future operating state of the fuel cell system; and

transmitting to the remotely located fuel cell system operating instructions configured to adjust the operating state of the fuel cell system at least partially responsive to the analysis.

63. The method of claim 62, wherein the analyzing step includes analyzing the operating state over time to detect a trend indicative of at least one of an impending failure and a future operating state of the fuel cell system.

64. The method of claim 63, wherein the analyzing step includes analyzing the operating state over time to detect a trend indicative of an impending failure of the fuel cell system.

65. The method of claim 64, wherein the transmitting step includes sending operating instructions configured to adjust the operating state of the fuel cell system to prevent the impending failure.

66. The method of claim 65, wherein the transmitting step includes sending operating instructions configured to shutdown the fuel cell system.

67. The method of claim 63, wherein the analyzing step includes analyzing the operating state over time to detect a trend that indicates a future operating state of the fuel cell system.

68. The method of claim 67, wherein the transmitting step includes transmitting operating instructions configured to adjust the operating state of the fuel cell system to prevent the fuel cell system from operating at the future operating state.

69. The method of claim 68, wherein the transmitting step includes transmitting operating instructions responsive at least in part to the detected trend.