System integrating a reformer and a fuel cell system

• US 20030176951A1
• Filed: 01/08/2003
• Published: 09/18/2003
• Est. Priority Date: 01/09/2002
• Status: Abandoned Application

• Current Assignee: Nuvera Fuel Cells
• Original Assignee: Nuvera Fuel Cells
• Inventors: DeMarchi, Julian A., Morriseau, Brian D., Leehey, Jonathan R.
• Application Number:
  US10/338,600
• Publication Number:
  US 20030176951A1
• Time in Patent Office: Days
• US Class Current: 700/286
• CPC Class Codes: H01M 8/0612 from carbon-containing material
• CPC Class Codes: Y02E 60/50 Fuel cells

Abstract

A system is disclosed having a central processing unit and a control area network with distributive control I/O monitoring and controlling modules for a fuel cell stack and hydrocarbon reformer power system.

Claims

1. An apparatus for monitoring and controlling an integrated fuel cell power system comprising:

a first control area network;

a fuel cell stack;

a fuel cell I/O module with embedded controls operably connected between the fuel cell stack and the first control area network, the fuel cell I/O module is responsive to local fuel cell power system parametric data output and the fuel cell I/O module communicates data relevant to system level criteria throughout the first control area network, and

a system level controller operably connected to the first control area network.

2. The apparatus of claim 1, further comprising the fuel cell stack operably connected to a hydrogen source.

3. The apparatus of claim 2, wherein the hydrogen source is a hydrocarbon reformer.

4. The apparatus of claim 3, further comprising the reformer including a burner and the system including a burner I/O module with embedded controls operably connected between the reformer and the first control area network, the burner I/O module is responsive to local fuel cell power system parametric data output and the burner I/O module communicates data relevant to system level criteria throughout the first control area network.

5. The apparatus of claim 4, further comprising a generic I/O module responsive to local fuel cell power system parametric data and the generic I/O module communicates data relevant to system level criteria throughout the first control area network.

6. The apparatus of claim 5, wherein the generic I/O module records fuel cell power system local parametric data input.

7. The apparatus of claim 5, wherein the generic I/O module records fuel cell power system local parametric data output.

8. The apparatus of claim 5, wherein the generic I/O module is responsive to system monitor and control signals to generate local control signals.

9. The apparatus of claim 5, wherein the controller is configured to provide system monitor and control signals to the generic I/O module.

10. The apparatus of claim 1, wherein the controller is responsive to the system level relevant data.

11. The apparatus of claim 1, wherein the system relevant data is recorded by the controller.

12. The apparatus of claim 1, wherein the controller has a graphic user interface.

13. The apparatus of claim 1, wherein the controller is an engine control unit.

14. The apparatus of claim 1, wherein the controller monitors connectivity of the system.

15. The apparatus of claim 1, wherein the first control area network is configured to operate when the modules are reconfigured.

16. The apparatus of claim 5, wherein the generic I/O module also includes an apparatus for permitting control of the generic I/O module separate from the system level control.

17. The apparatus of claim 1, wherein the system relevant data is preserved by the controller when reconfiguration of the first control area network occurs.

18. The apparatus of claim 5, wherein the system relevant data is preserved by the generic I/O module when reconfiguration of the first control area network occurs.

19. The apparatus of claim 1, wherein the first control area network is a ring wiring configuration serial bus system.

20. The apparatus of claim 1, wherein the controller has an operating system and the operating system runs in real time.

21. The apparatus of claim 20, wherein the operating system is OSEC 2.1 compliant.

22. The apparatus of claim 1, further comprising the first control area network operably connected to a second control area network.

23. The apparatus of claim 5, wherein the generic I/O module communicates a local control signal to the fuel cell stack.

24. The apparatus of claims 5, wherein the generic I/O module monitors and controls a fan.

25. The apparatus of claims 5, wherein the generic I/O module monitors and controls a pump.

26. The apparatus of claims 5, wherein the generic I/O module monitors and controls a valve.

27. The apparatus of claim 5, wherein the generic I/O module, operably connected to the control area network, monitors all local parametric data and controls all local signals within the fuel cell power system.

28. The apparatus of claim 5, further comprising a plurality of generic I/O modules, operably connected to the control area network, autonomously monitor local parametric data and control local I/O within the fuel cell power system.

29. The apparatus of claim 5, wherein the generic I/O module monitors and controls local parametric data relating to a low temperature.

30. The apparatus of claim 5, wherein the generic I/O module monitors and controls local parametric data relating to a high temperature.

31. The apparatus of claim 5, wherein the generic I/O module monitors and controls local parametric data relating to a flame sensor.

32. The apparatus of claim 5, wherein the generic I/O module monitors and controls local parametric data relating to an air flow.

33. The apparatus of claim 5, wherein the generic I/O module monitors and controls local parametric data relating to a fuel cell voltage.

34. The apparatus of claim 5, wherein the generic I/O module exclusively monitors and controls local parametric data pertaining to temperature.

35. The apparatus of claim 5, wherein the generic I/O module exclusively monitors and controls local parametric data pertaining to pulse width modulation.

36. The apparatus of claim 1, wherein the system level controller updates software via remote communication.

37. The apparatus of claim 5, wherein the generic I/O module creates a safety circuit emergency stop loop.

38. The apparatus of claim 5, wherein the generic I/O module coordinates DC-AC inverter fuel cell power generation.

39. The apparatus of claim 5, wherein the generic I/O module coordinates system power flow external and internal parasitic load management.

40. The apparatus of claim 28, wherein a first generic I/O module acts as a smart internal bus power supply regulator for other I/O modules.

41. The apparatus of claim 5, wherein the generic I/O module controls a safety circuit.

42. The apparatus of claim 5, wherein the generic I/O module controls an auxiliary boiler.

43. The apparatus of claim 5, wherein the generic I/O module is capable of system level controlling.

44. The apparatus of claim 1, wherein the controller is capable of communicating via a plurality of protocols simultaneously.

45. The apparatus of claim 1, wherein the controller is DeviceNet compliant.

46. The apparatus of claim 22, wherein the controller is configurable as a master or a slave.

47. A fuel cell power system comprising:

a controller such as an ECU or CPU communicatively connected to a control area network, preferably a CAN protocol network, and in communication with a plurality of generic I/O modules having embedded controls for monitoring and controlling a fuel cell stack and its associated hydrogen supply source.

48. The system of claim 47 wherein hydrogen supply is a hydrocarbon reformer and the system having one or more generic I/O modules with embedded controls to monitor and control the operation of the reformer including monitor and control such as temperatures, pressures, hydrocarbon feed rate, mass flow through the reformer, air feed rate, water and steam generation and feed rates, and or total thermal out put.

49. A method of operating a fuel cell system comprising:

measuring parametric information of a fuel cell or a fuel processor integrated with the fuel cell;

communicating information relative to measurement to a bus; and

accessing the bus via one or more module selected from the group consisting of a high temperature monitor, a low temperature monitor, a pulse width modulation and relay module, a cell voltage monitor, a controller, and a generic I/O module.