WO1998021803A3 - Improvements relating to signalling in electricity distribution systems - Google Patents

Improvements relating to signalling in electricity distribution systems Download PDF

Info

Publication number
WO1998021803A3
WO1998021803A3 PCT/NZ1997/000156 NZ9700156W WO9821803A3 WO 1998021803 A3 WO1998021803 A3 WO 1998021803A3 NZ 9700156 W NZ9700156 W NZ 9700156W WO 9821803 A3 WO9821803 A3 WO 9821803A3
Authority
WO
WIPO (PCT)
Prior art keywords
loads
supply system
signalling
distribution systems
improvements relating
Prior art date
Application number
PCT/NZ1997/000156
Other languages
French (fr)
Other versions
WO1998021803A2 (en
Inventor
Dean Syme Gowans
Andrew Yuill
Original Assignee
Brian Tolley Corp Ltd
Dean Syme Gowans
Andrew Yuill
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
Application filed by Brian Tolley Corp Ltd, Dean Syme Gowans, Andrew Yuill filed Critical Brian Tolley Corp Ltd
Priority to CA002271913A priority Critical patent/CA2271913A1/en
Priority to JP52243198A priority patent/JP2001503954A/en
Priority to AU50715/98A priority patent/AU5071598A/en
Priority to EP97913551A priority patent/EP0944945A4/en
Publication of WO1998021803A2 publication Critical patent/WO1998021803A2/en
Publication of WO1998021803A3 publication Critical patent/WO1998021803A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5437—Wired telephone

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

An electricity supply system in which a control organisation creates variations of the fundamental frequency of the supply in order to signal shedding or adding of loads (L1-L4), or to cause some other process or transmission of data. The loads (L1-L4) are generally located at consumer premises and are able to be actuated in this fashion by prior agreement with the control organisation. Each consumer installs frequency change decoder device (17) to detect and interpret the signals above noise which is always present on the supply system. Each device (17) may also be used to detect uncontrolled frequency decays caused by a failure in the supply system and to shed loads (L1-L4) appropriately.
PCT/NZ1997/000156 1996-11-14 1997-11-14 Improvements relating to signalling in electricity distribution systems WO1998021803A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002271913A CA2271913A1 (en) 1996-11-14 1997-11-14 Improvements relating to signalling in electricity distribution systems
JP52243198A JP2001503954A (en) 1996-11-14 1997-11-14 Improvements on signaling in distribution systems
AU50715/98A AU5071598A (en) 1996-11-14 1997-11-14 Improvements relating to signalling in electricity distribution systems
EP97913551A EP0944945A4 (en) 1996-11-14 1997-11-14 Improvements relating to signalling in electricity distribution systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ299756 1996-11-14
NZ29975696 1996-11-14

Publications (2)

Publication Number Publication Date
WO1998021803A2 WO1998021803A2 (en) 1998-05-22
WO1998021803A3 true WO1998021803A3 (en) 1998-08-06

Family

ID=19926024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ1997/000156 WO1998021803A2 (en) 1996-11-14 1997-11-14 Improvements relating to signalling in electricity distribution systems

Country Status (4)

Country Link
EP (1) EP0944945A4 (en)
JP (1) JP2001503954A (en)
AU (1) AU5071598A (en)
WO (1) WO1998021803A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI1010137A2 (en) 2009-06-24 2016-03-15 Koninkl Philips Electronics Nv method for transmitting data from a consumer device over an ac voltage supply line to an ac voltage source, method for two-way communication between an ac voltage source and a consumer device over a line AC power supply, programming device for programming a controller into an electronic driver and electronic driver
JP5309077B2 (en) * 2010-04-28 2013-10-09 通研電気工業株式会社 Power system control system and power system control method
GB2478505B (en) * 2011-01-17 2012-02-15 Ido Schwartzman Method and system for secure firmware updates in programmable devices
GB201103161D0 (en) * 2011-02-23 2011-04-06 Rltec Ltd Virtual power station
KR20130030707A (en) * 2011-09-19 2013-03-27 최창준 Cutting system or method or electric circuits for cutting or reconnecting the terminal electric power load to incoming electric power according to the quality of supplied incoming electricity for preventing of wide blackout crisis
JP5692318B2 (en) * 2012-07-18 2015-04-01 三菱電機株式会社 Refrigeration cycle equipment
DE102012023426A1 (en) * 2012-11-29 2014-03-13 Kostal Industrie Elektrik Gmbh Electrical arrangement and electrical system with an electrical arrangement
GB2511864A (en) * 2013-03-15 2014-09-17 Reactive Technologies Ltd Method, apparatus and computer program for transmitting and/orreceiving signals
US10983150B2 (en) * 2017-08-28 2021-04-20 General Electric Technology Gmbh Systems and methods for detecting and evaluating oscillations in an electrical power grid
DE102020114764A1 (en) 2020-06-03 2021-12-09 Westnetz Gmbh Transmission method for a frequency-generating plant, receiving method for a generating plant or switching device, frequency-generating plant, generating plant, switching device and electrical network

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755686A (en) * 1972-05-31 1973-08-28 Nasa Powerplexer
US4023043A (en) * 1974-08-16 1977-05-10 Megatherm Corporation Computerized peak-shaving system for alleviating electric utility peak loads
US4034232A (en) * 1976-06-01 1977-07-05 Burroughs Corporation System for synchronizing and phase shifting switching regulators
US4152605A (en) * 1977-10-03 1979-05-01 Conde Hector O Automatic load control system and method for a power distribution network
US4310770A (en) * 1979-07-25 1982-01-12 Ohio Agricultural Research And Development Center Demand load control
US4510398A (en) * 1983-12-13 1985-04-09 Honeywell Inc. Add/shed load control according to multiple add/shed sequences
US4549274A (en) * 1983-07-11 1985-10-22 Honeywell Inc. Distributed electric power demand control
US4694192A (en) * 1984-11-23 1987-09-15 Honeywell Inc. Simplified demand limit control
US5471401A (en) * 1992-09-09 1995-11-28 Basic Measuring Instruments, Inc. Waveform library for characterizing an AC power line spectrum
US5497332A (en) * 1993-10-01 1996-03-05 Automatic Terminal Information Systems, Inc. Method and apparatus for metering and monitoring AC generators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246492A (en) * 1977-12-02 1981-01-20 Vandling John M Method of and apparatus for load and/or load control signaling to customers in a power system
US4370563A (en) * 1977-12-02 1983-01-25 Vandling John M Method of and apparatus for load and/or load control signaling to customers in a power system
GB2080640B (en) * 1980-07-14 1983-12-07 South Eastern Elec Board Power supply systems
US4658238A (en) * 1982-08-24 1987-04-14 Emerson Electric Co. Method and apparatus for providing selectively variable modulation signal for a carrier wave

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755686A (en) * 1972-05-31 1973-08-28 Nasa Powerplexer
US4023043A (en) * 1974-08-16 1977-05-10 Megatherm Corporation Computerized peak-shaving system for alleviating electric utility peak loads
US4034232A (en) * 1976-06-01 1977-07-05 Burroughs Corporation System for synchronizing and phase shifting switching regulators
US4152605A (en) * 1977-10-03 1979-05-01 Conde Hector O Automatic load control system and method for a power distribution network
US4310770A (en) * 1979-07-25 1982-01-12 Ohio Agricultural Research And Development Center Demand load control
US4549274A (en) * 1983-07-11 1985-10-22 Honeywell Inc. Distributed electric power demand control
US4510398A (en) * 1983-12-13 1985-04-09 Honeywell Inc. Add/shed load control according to multiple add/shed sequences
US4694192A (en) * 1984-11-23 1987-09-15 Honeywell Inc. Simplified demand limit control
US5471401A (en) * 1992-09-09 1995-11-28 Basic Measuring Instruments, Inc. Waveform library for characterizing an AC power line spectrum
US5497332A (en) * 1993-10-01 1996-03-05 Automatic Terminal Information Systems, Inc. Method and apparatus for metering and monitoring AC generators

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0944945A4 *

Also Published As

Publication number Publication date
JP2001503954A (en) 2001-03-21
EP0944945A2 (en) 1999-09-29
WO1998021803A2 (en) 1998-05-22
EP0944945A4 (en) 2000-08-16
AU5071598A (en) 1998-06-03

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