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AU642485B2 - Method for transmitting electrical energy - Google Patents
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AU642485B2 - Method for transmitting electrical energy - Google Patents

Method for transmitting electrical energy Download PDF

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Publication number
AU642485B2
AU642485B2 AU74362/91A AU7436291A AU642485B2 AU 642485 B2 AU642485 B2 AU 642485B2 AU 74362/91 A AU74362/91 A AU 74362/91A AU 7436291 A AU7436291 A AU 7436291A AU 642485 B2 AU642485 B2 AU 642485B2
Authority
AU
Australia
Prior art keywords
electrical energy
direct current
arrangement
usable
arrangement according
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.)
Ceased
Application number
AU74362/91A
Other versions
AU7436291A (en
Inventor
Dale John Butler
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.)
BUTLER SOLAR SYSTEMS Pty Ltd
Original Assignee
BUTLER SOLAR SYSTEMS Pty Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25637618&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU642485(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BUTLER SOLAR SYSTEMS Pty Ltd filed Critical BUTLER SOLAR SYSTEMS Pty Ltd
Priority to AU74362/91A priority Critical patent/AU642485B2/en
Publication of AU7436291A publication Critical patent/AU7436291A/en
Application granted granted Critical
Publication of AU642485B2 publication Critical patent/AU642485B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M16/00—Structural combinations of different types of electrochemical generators
    • H01M16/003—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/28—Arrangements for balancing of the load in networks by storage of energy
    • H02J3/32—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means
    • 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
    • Y02E60/10—Energy storage using batteries
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel Cell (AREA)

Description

COMPLETE SPECIFICATION FOR OFFICE USE 642485 Application Number: Lodged: Class: Int. Class: Complete Specification Lodged: Accepted: Published: Priority: Related Art: C. S C
C.
S
C
C
*5*5 *9 55 C
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TO BE COMPLETED BY APPLICANT Name of Applicant: Address of Applicant: Actual Inventor/s: Address for Service: BUTLER SOLAR SYSTEMS PTY. LTD.
22 Chelmsford Street, North Balwyn, Victoria, 3104 Dale John Butler SMITH SHELSTON BEADLE 207 Riversdale Road (P 0 Box 410) Hawthorn Victoria 3122 Australia (Attorney Code SA) Complete Specification for the invention entitled: METHOD FOR TRANSMITTING ELECTRICAL ENERGY 0
S
The following statement is a full description of this invention, including the best method of performing it known to me/us: Page 1 Page 1 Our Ref: #5470 JC:JH -2- This invention relates to the provision of energy, particularly alternating current electricity, in remote areas, in areas requiring security of supply, and so on.
Many businesses and rural enterprises, such as farms, have needs for lowcost stand-alone electricity generating systems. Such systems are also desirable in security sensitive applications such as in offices.
Fuel cells are well known. 'The Penguin Dictionary of Physics', Edited by Valerie H. P:H, Penguin Books Australia Ltd, 1977, defines a 'fuel cell' as 'A device for the direct conversion of energy from an oxidation/reduction chemical process to a flow of electricity'. Fuel cells convert fuels (feedstock) such as carbon or hydrogen directly into electricity.
C.
S
S
*5 *5
S
Fuel cells are efficient, silent and non polluting sources of D.C. electrical energy. However, they have the following disadvantages:- 1. They must be sized to supply the peak load.
2. They are D C devices and most loads are A.C 3. Because the cell voltage is usually less than 2v the number of cells required is large.
In any conventional arrangement the costs of utilizing fuel cells would be prohibitive.
It is an object of this invention to provide an improved arrangement for 20 producing electricity from fuel cells.
The invention provides an arrangement for producing electrical energy, including at least one fuel cell adapted to produce first direct current (DC) electrical energy from feedstock, DC-to-DC conversion means adapted to process said first direct current (DC) electrical energy into a second direct current (DC) electrical energy having a predetermined voltage, electrical energy storage means adapted to store second direct current (DC) electrical energy, and electrical energy processing means adapted to produce usable electrical energy from said electrical energy storage means, said usable electrical Jll-SPEW2 5470 7u M1ch, 1991 -3energy being adapted to meet peak load demand.
An embodiment of the invention, which may be preferred, will be described in detail hereinafter with reference to the accompanying drawing, which is a block diagram of the embodiment.
A 20:1 peak to average energy usage ratio is the norm in a domestic or rural consumer situation. If the average household uses 5 kW hours per day, the average power required is a mere 208 Watts. Similar peak to average ratios apply to rany businesses and rural enterprises.
The present embodiment provides an arrangement for meeting peak demand with a minimum of fuel cells producing electricity.
In the drawing, a fuel cell assembly is shown, generally producing low voltage high current DC electricity from fuel cell feedstock.
I. The output from the fuel cell assembly or array is passed to a DC to DC converter, which produces a predetermined or desired higher voltage DC current, which is 15 then used to charge the storage battery bank. It should be noted that it is cheaper to manufacture a small number of high current fuel cells than to manufacture a large number of low current cells. Thus, in this preferment, costs are reduced.
From the battery bank electricity would be supplied to the consumer through a DC to AC converter, preferably an inverter.
20 Because storage cells are used, it is possible to size the fuel cell assembly to supply the average load, rather than the peak load.
It can be seen that this invention provides an economical and effective way of producing AC electrical energy in isolated situations at a relatively low cost.
The entire contents of the provisional specification lodged with Australian Patent Application of which this is the complete specification is hereby imported into this specification and forms part of the disclosure of this specification. The claims form part of the disclosure of this specification.
JMsnsaSV4O U Mh IM

Claims (4)

1. An arrangement for producing electrical energy, including at least one fuel cell adapted to produce first direct current (DC) electrical energy from feedstock, DC-to- DC conversion means adapted to process said first direct current (DC) electrical energy into a second direct current (DC) electrical energy having a predetermined voltage, electrical energy storage means adapted to store second direct current (DC) electrical energy, and electrical energy processing means adapted to produce usable electrical energy from said electrical energy storage means, said usable electrical energy being adapted to meet peak load demand.
2. An arrangement according to claim 1, wherein there is a plurality of fuel cells.
3. An arrangement according to any preceding claim, wherein said usable o• electrical energy is alternating current (AC) electrical energy, and said means to process said stored energy is a DC to AC converter.
4. An arrangement according to claim 3, wherein said DC-to-AC converter is an inverter. An arrangement for producing electrical energy, substantially as herein described with reference to the accompanying drawing. DATED this 24 March, 1993 20 CARTER SMITH BEADLE Fellows Institute of Patent Attorneys of Australia Patent Attorneys for the Applicant: BUTLER SOLAR SYSTEMS PTY LTD ji-spna o4 U24 Much, 13
AU74362/91A 1990-04-11 1991-04-11 Method for transmitting electrical energy Ceased AU642485B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU74362/91A AU642485B2 (en) 1990-04-11 1991-04-11 Method for transmitting electrical energy

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPJ9609 1990-04-11
AUPJ960990 1990-04-11
AU74362/91A AU642485B2 (en) 1990-04-11 1991-04-11 Method for transmitting electrical energy

Publications (2)

Publication Number Publication Date
AU7436291A AU7436291A (en) 1991-10-17
AU642485B2 true AU642485B2 (en) 1993-10-21

Family

ID=25637618

Family Applications (1)

Application Number Title Priority Date Filing Date
AU74362/91A Ceased AU642485B2 (en) 1990-04-11 1991-04-11 Method for transmitting electrical energy

Country Status (1)

Country Link
AU (1) AU642485B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU533751B2 (en) * 1979-05-29 1983-12-08 Snamprogetti S.P.A. Storing and producing power by alkali metals
AU635605B2 (en) * 1990-01-26 1993-03-25 Butler Solar Systems Pty Ltd Method for transmitting electrical energy

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU533751B2 (en) * 1979-05-29 1983-12-08 Snamprogetti S.P.A. Storing and producing power by alkali metals
AU635605B2 (en) * 1990-01-26 1993-03-25 Butler Solar Systems Pty Ltd Method for transmitting electrical energy

Also Published As

Publication number Publication date
AU7436291A (en) 1991-10-17

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