CA2506173A1 - Proton exchange membrane based power system for a telecommunication facility - Google Patents

Proton exchange membrane based power system for a telecommunication facility Download PDF

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Publication number
CA2506173A1
CA2506173A1 CA 2506173 CA2506173A CA2506173A1 CA 2506173 A1 CA2506173 A1 CA 2506173A1 CA 2506173 CA2506173 CA 2506173 CA 2506173 A CA2506173 A CA 2506173A CA 2506173 A1 CA2506173 A1 CA 2506173A1
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CA
Canada
Prior art keywords
proton exchange
exchange membrane
output
set forth
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2506173
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French (fr)
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CA2506173C (en
Inventor
Larry L. Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sprint Communications Co LP
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Individual
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Filing date
Publication date
Priority claimed from US10/298,074 external-priority patent/US6960838B2/en
Application filed by Individual filed Critical Individual
Publication of CA2506173A1 publication Critical patent/CA2506173A1/en
Application granted granted Critical
Publication of CA2506173C publication Critical patent/CA2506173C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/10—Applications of fuel cells in buildings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/40—Fuel cell technologies in production processes

Abstract

A power system specifically designed to provide reliable electrical power to a telecommunication facility is disclosed. In one embodiment, the system includes a number of proton exchange membranes (410) adapted to convert a fuel, such as hydrogen, to DC electrical power, a number of rectifiers (430 ) operable to convert AC electrical power received from an AC power source to DC power, and a number of capacitators (440) operable to maintain power during the time required to change between power sources. Both the output of the rectifiers and the output of the proton exchange membranes are coupled to th e capacitators. Initially, while the output of the proton exchange membrane rises to a predetermined level, power is supplied by the AC power source to the rectifiers and from the rectifiers to the capacitators and the telecommunications facility. Once it reaches the predetermined level, the output of the proton exchange membrane is supplied to the capacitators and t he telecommunications facility and power is no longer received from the AC powe r source.

Claims (23)

1. A power supply system for providing reliable electrical power to a telecommunications facility, said facility containing telecommunications equipment, said system comprising: at least one proton exchange membrane, said proton exchange membrane including a fuel input and an electrical output, said proton exchange membrane operable to receive fuel at said fuel input and to generate DC electrical power at said electrical output;
at least one rectifier, said rectifier including an AC input and a DC output, said rectifier operable to convert AC electrical power received from an AC power source at said AC input to DC electrical power at said DC output; and at least one capacitor coupled to said electrical output of said at least one proton exchange membrane and said DC output of said at least one rectifier.
2. A system as set forth in claim 1 wherein said fuel for said at least one proton exchange membrane is hydrogen.
3. A system as set forth in claim 2 wherein said hydrogen is stored on site.
4. A system as set forth in claim 1 wherein said AC power source is a commercial utility.
5. A system as set forth in claim 1 wherein said AC power source is at least one microturbine generator.
6. A system as set forth in claim 1 wherein said AC power source is a diesel generator.
7. A system as set forth in claim 1 further comprising a switching mechanism coupled between said at least one proton exchange membrane and said at least one capacitor, said switching mechanism operable to be an open circuit so long as said DC output from said at least one proton exchange membrane remains below a predetermined value and to be a short circuit when said DC output from said at least one proton exchange membrane exceeds said predetermined value.
8. A system as set forth in claim 7 wherein said predetermined value is 48 volts DC.
9. A system as set forth in claim 7 wherein said predetermined value is 200 amps DC.
10. A system as set forth in claim 1 further comprising a switching mechanism coupled between said AC power source and said at least one rectifier, said switching mechanism operable to be a short circuit so long as said DC output from said at least one proton exchange membrane remains below a predetermined value and to be an open circuit when said DC output from said at least one proton exchange membrane exceeds said predetermined value.
11. A system as set forth in claim 10 wherein said predetermined value is 48 volts DC.
12. A system as set forth in claim 10 wherein said predetermined value is 200 amps DC.
13. A power supply system for providing reliable electrical power to a telecommunications facility, said facility containing telecommunications equipment, said system comprising: at least one proton exchange membrane, said proton exchange membrane including a fuel input and an electrical output, said proton exchange membrane operable to convert fuel received at said fuel input to generate DC electrical power at said electrical output; means for receiving AC electrical power from an AC power source; at least one rectifier, said rectifier including an AC input and a DC output, said rectifier operable to convert AC electrical power received from said means for receiving AC electrical power at said AC input to DC electrical power at said DC
output; at least one capacitor coupled to said electrical output of said at least one proton exchange membrane and said DC output of said at least one rectifier;
and control means for switching from said DC power produced by said rectifiers to DC power produced by said at least one proton exchange membrane.
14. A system as set forth in claim 13 wherein said fuel for said at least one proton exchange membrane is hydrogen.
15. A system as set forth in claim 14 wherein said hydrogen is stored on site.
16. A system as set forth in claim 13 wherein said AC power source is a commercial utility.
17. A system as set forth in claim 13 wherein said AC power source is at least one microturbine generator.
18. A system as set forth in claim 13 wherein said AC power source is a diesel generator.
19. A system as set forth in claim 13 wherein said control means includes a switching mechanism coupled between said at least one proton exchange membrane and said at least one capacitor, said switching mechanism operable to be an open circuit so long as said DC output from said at least one proton exchange membrane remains below a predetermined value and to be a short circuit when said DC output from said at least one proton exchange membrane exceeds said predetermined value.
20. A system as set forth in claim 13 wherein said control means includes switching mechanism coupled between said AC power source and said at least one rectifier, said switching mechanism operable to be a short circuit so long as said DC output from said at least one proton exchange membrane remains below a predetermined value and to be an open circuit when said DC output from said at least one proton exchange membrane exceeds said predetermined value.
21. A method for supplying power to a telecommunications facility from a power supply system, said method comprising the following steps:
providing at least one proton exchange membrane, said proton exchange membrane operable to receive a fuel and to produce DC electrical power;
providing AC electrical power from an AC power source to at least one rectifier, said rectifier operable to convert said AC electrical power to DC electrical power;
providing said DC electrical power from said at least one rectifier to at least one capacitor; providing said DC electrical power from said at least one rectifier to said telecommunications facility; and when said DC electrical power from said at least one proton exchange membrane reaches a predetermined level, providing said DC electrical power to said at least one capacitor and to said telecommunications facility and terminating the receipt of said AC electrical power at said at least one rectifier.
22. A method as set forth in claim 21 further comprising the step of: providing AC power from said AC power source to said at least one rectifiers if said DC electrical power from said proton exchange membrane falls below a predetermined value.
23. A method as set forth in claim 21 further comprising the step of providing fuel to said at least proton exchange membrane.
CA 2506173 2002-11-15 2003-11-13 Proton exchange membrane based power system for a telecommunication facility Expired - Fee Related CA2506173C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US10/298,074 US6960838B2 (en) 2002-11-15 2002-11-15 Power system for a telecommunication facility
US10/298,074 2002-11-15
US10/648,634 2003-08-23
US10/648,634 US6885112B2 (en) 2002-11-15 2003-08-25 Proton exchange membrane based power system for a telecommunication facility
PCT/US2003/036379 WO2004047206A2 (en) 2002-11-15 2003-11-13 Proton exchange membrane based power system for a telecommunication facility

Publications (2)

Publication Number Publication Date
CA2506173A1 true CA2506173A1 (en) 2004-06-03
CA2506173C CA2506173C (en) 2011-10-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2506173 Expired - Fee Related CA2506173C (en) 2002-11-15 2003-11-13 Proton exchange membrane based power system for a telecommunication facility

Country Status (5)

Country Link
US (1) US7256506B2 (en)
EP (1) EP1561270A2 (en)
AU (1) AU2003290874A1 (en)
CA (1) CA2506173C (en)
WO (1) WO2004047206A2 (en)

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Also Published As

Publication number Publication date
WO2004047206A2 (en) 2004-06-03
WO2004047206A3 (en) 2004-07-08
US20060038403A1 (en) 2006-02-23
EP1561270A2 (en) 2005-08-10
AU2003290874A1 (en) 2004-06-15
AU2003290874A8 (en) 2004-06-15
US7256506B2 (en) 2007-08-14
CA2506173C (en) 2011-10-11

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