EP1468370A1 - System and method for local power distribution device monitoring and control - Google Patents

System and method for local power distribution device monitoring and control

Info

Publication number
EP1468370A1
EP1468370A1 EP02806217A EP02806217A EP1468370A1 EP 1468370 A1 EP1468370 A1 EP 1468370A1 EP 02806217 A EP02806217 A EP 02806217A EP 02806217 A EP02806217 A EP 02806217A EP 1468370 A1 EP1468370 A1 EP 1468370A1
Authority
EP
European Patent Office
Prior art keywords
power distribution
local power
distribution device
operating status
status information
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.)
Withdrawn
Application number
EP02806217A
Other languages
German (de)
French (fr)
Inventor
David G. Hart
David Uy
Carl J. Laplace
William M. Egolf
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.)
ABB Inc USA
Original Assignee
ABB Inc USA
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 ABB Inc USA filed Critical ABB Inc USA
Publication of EP1468370A1 publication Critical patent/EP1468370A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • 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
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/13—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network
    • H02J13/1321—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using a wired telecommunication network or a data transmission bus
    • H02J13/1323—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using a wired telecommunication network or a data transmission bus using optical fibres
    • 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
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/13—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network
    • H02J13/1337—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network involving the use of Internet protocols
    • 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
    • H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
    • H02J13/18—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the remotely-controlled equipment, e.g. converters or transformers
    • H02J13/333—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the remotely-controlled equipment, e.g. converters or transformers the equipment forming part of substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • 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
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol

Definitions

  • the present invention relates to systems and methods for local power distribution device monitoring and control using a dedicated embedded web server. More specifically, the invention relates to monitoring local power distribution devices using distributed network (DNP) protocol and transmitting local power distribution device operating status information using a dedicated embedded web server.
  • DNP distributed network
  • a substation In existing systems for monitoring and controlling an electrical distribution network, a substation will monitor local power distribution devices.
  • the substation and the local power distribution devices typically communicate using DNP protocol over a low to medium speed network such as, for example, a wireless network (typically 9600 baud).
  • a drawback of existing substations is that they lack the ability to quickly and consistently update utility control centers with the local power distribution device operating status.
  • the local power distribution device operating status includes status information about equipment installed at the local power distribution device such as, for example, voltage and current measurements, power, operations counts, time record data, transformer temperature and oil level, and switch and circuit breaker status (open or closed, etc.). It is important for control centers to be updated quickly with the local power distribution device operating status because those devices may often be a great distance from a control center. Thus, it would be a great improvement in the art to enable a substation to communicate with local power distribution devices over existing low to medium speed networks using the established DNP protocol and to communicate with main control centers using a higher speed communication channel.
  • the present invention is directed to systems and methods for local power distribution device monitoring and control using a dedicated embedded web server.
  • a gateway located at the substation comprises a local power distribution connection device and a dedicated embedded web server.
  • the local power distribution connection device provides access to local power distribution devices using DNP protocol over a low to medium speed network such as, for example, a wireless network.
  • the dedicated embedded web server maps the local power distribution device operating status information onto displayable pages and transmits the local power distribution device operating status information using TCP/IP protocol to a web browser operating at a control center.
  • the dedicated embedded web server is also capable of receiving from the control center control commands issued in response to the local power distribution device operating status information.
  • the gateway relays control commands from the dedicated embedded web server to the local power distribution devices.
  • FIG. 1 is a block diagram of an illustrative substation monitoring and control system in accordance with the present invention
  • Figure 2 is a flow chart of an illustrative method for local power distribution device monitoring and control in accordance with an aspect of the invention.
  • FIG. 1 is a block diagram of an illustrative substation monitoring and control system in accordance with the present invention.
  • substation 110 contains gateway 114 which provides access to local power distribution devices 120.
  • Dedicated embedded web server 114b transmits local power distribution device operating status information over Internet 130 to web - ⁇ browser 140.
  • local power distribution connection device 114a provides gateway 114 with access to local power distribution devices 120.
  • Local power distribution connection device 114a communicates with local power distribution devices 120 over any network capable of supporting transfer of data using DNP protocol such as, for example, but not limited to, a wireless network, a twisted pair network, or a fiber optic network.
  • DNP protocol such as, for example, but not limited to, a wireless network, a twisted pair network, or a fiber optic network. Communication between local power distribution devices and a gateway device at a substation using DNP protocol is described in detail in U.S. Pat. No. 6,005,759, which is hereby incorporated by reference in its entirety.
  • Gateway 114 also contains dedicated embedded web server 114b for mapping local power distribution device operating status information onto predefined standards based markup language pages.
  • Local power distribution device status information includes information about equipment typically installed at local power distribution devices such as, for example, switches, circuit breakers, and transformers. Status information may also include information about additional equipment such as, for example, fault recorders, power meters, power quality monitors, and relays. Information about this equipment includes information such as, for example, voltage and current measurements, power, operations counts, records of time-stamped event data, switch and circuit breaker position, pressure, and wear data, and transformer oil level and temperature.
  • Dedicated embedded web server 114b maps local power distribution device operating status information onto predefined standards based markup language pages such as, for example but not limited to HTML and XML, transmits local power distribution device operating status information using TCP/IP protocol, and receives control commands in response to said local power distribution device operating status information.
  • Dedicated embedded web server 114b transmits local power distribution device operating status information over wide area network 130 using TCP/IP protocol to web browser 140.
  • Wide area network 130 may be any wide area network such as, for example, the Internet.
  • Web browser 140 may connect to wide area network 130 using any common network connection such as, for example, a standard dial up connection over a phone line.
  • Web browser 140 may be any web browser device such as, for example, a web browser running on a personal computer. Such a personal computer may be located at a utility's main control center or in a mobile control unit.
  • Control commands may consist of operation instructions for equipment installed at local power distribution devices 120 such as, for example, commands to open or close a switch, commands for transformer tap change, or commands to shut off or turn on power. Control commands are received at dedicated embedded web server 114b and are then transmitted to local power distribution devices 120 through local connection device 114a.
  • FIG. 2 is a flow chart of an illustrative method for substation monitoring and control in accordance with an aspect of the invention.
  • local power distribution connection device 114a monitors the operating status of local power distribution devices 120.
  • dedicated embedded web server 114b maps local power distribution device operating status information onto predefined standards based markup language pages.
  • dedicated embedded web server 114b transmits local power distribution device operating status information over wide area network 130 to web browser 140 using TCP/IP protocol.
  • web browser 140 receives local power distribution device operating status information.
  • web browser 140 issues a control command in response to the local power distribution device operating status information.
  • the control command is received by dedicated embedded web server 114b.
  • the control command is relayed to a local power distribution device 120 through local power distribution connection device 114a.
  • the control command is received and implemented by local power distribution device 120.

Landscapes

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

Abstract

A local power distribution device monitoring and control system wherein the local power distribution device monitoring and control system monitors the local power distribution device operating status. A dedicated embedded web sever maps the local power distribution device operating status information onto displayable pages and transmits the information to a utility control center using TCP/IP protocol.

Description

SYSTEM AND METHOD FOR LOCAL POWER DISTRIBUTION DEVICE
MONITORING AND CONTROL
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION Field of the invention
The present invention relates to systems and methods for local power distribution device monitoring and control using a dedicated embedded web server. More specifically, the invention relates to monitoring local power distribution devices using distributed network (DNP) protocol and transmitting local power distribution device operating status information using a dedicated embedded web server.
Description of the Prior Art
In existing systems for monitoring and controlling an electrical distribution network, a substation will monitor local power distribution devices. The substation and the local power distribution devices typically communicate using DNP protocol over a low to medium speed network such as, for example, a wireless network (typically 9600 baud).
A drawback of existing substations is that they lack the ability to quickly and consistently update utility control centers with the local power distribution device operating status. The local power distribution device operating status includes status information about equipment installed at the local power distribution device such as, for example, voltage and current measurements, power, operations counts, time record data, transformer temperature and oil level, and switch and circuit breaker status (open or closed, etc.). It is important for control centers to be updated quickly with the local power distribution device operating status because those devices may often be a great distance from a control center. Thus, it would be a great improvement in the art to enable a substation to communicate with local power distribution devices over existing low to medium speed networks using the established DNP protocol and to communicate with main control centers using a higher speed communication channel.
SUMMARY OF THE INVENTION
The present invention is directed to systems and methods for local power distribution device monitoring and control using a dedicated embedded web server. A gateway located at the substation comprises a local power distribution connection device and a dedicated embedded web server. The local power distribution connection device provides access to local power distribution devices using DNP protocol over a low to medium speed network such as, for example, a wireless network. The dedicated embedded web server maps the local power distribution device operating status information onto displayable pages and transmits the local power distribution device operating status information using TCP/IP protocol to a web browser operating at a control center. The dedicated embedded web server is also capable of receiving from the control center control commands issued in response to the local power distribution device operating status information. The gateway relays control commands from the dedicated embedded web server to the local power distribution devices.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be better understood after reading the following detailed description of the presently preferred embodiments thereof with reference to the appended drawings, in which:
Figure 1 is a block diagram of an illustrative substation monitoring and control system in accordance with the present invention;
Figure 2 is a flow chart of an illustrative method for local power distribution device monitoring and control in accordance with an aspect of the invention.
DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
Systems and methods for substation monitoring and control in accordance with the invention are described below with reference to Figures 1-2. Those skilled in the art will readily appreciate that the description given herein with respect to those figures is for explanatory purposes only and is not intended in any way to limit the scope of the invention. Throughout the description, like reference numerals will refer to like elements in the respective figures.
Figure 1 is a block diagram of an illustrative substation monitoring and control system in accordance with the present invention. Generally, substation 110 contains gateway 114 which provides access to local power distribution devices 120. Dedicated embedded web server 114b transmits local power distribution device operating status information over Internet 130 to web -~ browser 140.
As shown in Figure 1, local power distribution connection device 114a provides gateway 114 with access to local power distribution devices 120. Local power distribution connection device 114a communicates with local power distribution devices 120 over any network capable of supporting transfer of data using DNP protocol such as, for example, but not limited to, a wireless network, a twisted pair network, or a fiber optic network. Communication between local power distribution devices and a gateway device at a substation using DNP protocol is described in detail in U.S. Pat. No. 6,005,759, which is hereby incorporated by reference in its entirety.
Gateway 114 also contains dedicated embedded web server 114b for mapping local power distribution device operating status information onto predefined standards based markup language pages. Local power distribution device status information includes information about equipment typically installed at local power distribution devices such as, for example, switches, circuit breakers, and transformers. Status information may also include information about additional equipment such as, for example, fault recorders, power meters, power quality monitors, and relays. Information about this equipment includes information such as, for example, voltage and current measurements, power, operations counts, records of time-stamped event data, switch and circuit breaker position, pressure, and wear data, and transformer oil level and temperature.
Dedicated embedded web server 114b maps local power distribution device operating status information onto predefined standards based markup language pages such as, for example but not limited to HTML and XML, transmits local power distribution device operating status information using TCP/IP protocol, and receives control commands in response to said local power distribution device operating status information. Dedicated embedded web server 114b transmits local power distribution device operating status information over wide area network 130 using TCP/IP protocol to web browser 140. Wide area network 130 may be any wide area network such as, for example, the Internet. Web browser 140 may connect to wide area network 130 using any common network connection such as, for example, a standard dial up connection over a phone line. Web browser 140 may be any web browser device such as, for example, a web browser running on a personal computer. Such a personal computer may be located at a utility's main control center or in a mobile control unit.
The web browser operator may issue control commands in response to local power distribution device operating status information. Control commands may consist of operation instructions for equipment installed at local power distribution devices 120 such as, for example, commands to open or close a switch, commands for transformer tap change, or commands to shut off or turn on power. Control commands are received at dedicated embedded web server 114b and are then transmitted to local power distribution devices 120 through local connection device 114a.
Figure 2 is a flow chart of an illustrative method for substation monitoring and control in accordance with an aspect of the invention. At step 210, local power distribution connection device 114a monitors the operating status of local power distribution devices 120. At step 212, dedicated embedded web server 114b maps local power distribution device operating status information onto predefined standards based markup language pages.
At step 214, dedicated embedded web server 114b transmits local power distribution device operating status information over wide area network 130 to web browser 140 using TCP/IP protocol. At step 216, web browser 140 receives local power distribution device operating status information. At step 218, web browser 140 issues a control command in response to the local power distribution device operating status information. At step 220, the control command is received by dedicated embedded web server 114b. At step 222, the control command is relayed to a local power distribution device 120 through local power distribution connection device 114a. At step 224, the control command is received and implemented by local power distribution device 120.
While the invention has been described and illustrated with reference to specific embodiments, those skilled in the art will recognize that modification and variations may be made without departing from the principles of the invention as described above and set forth in the following claims. For example, while the invention has been described as communicating to local power distribution devices over a wireless network, the invention may also communicate with local power distribution devices over any existing network capable of supporting transfer of data utilizing DNP protocol. Furthermore, web browser 140 may connect to Internet 130 using any network supporting transfer of data using TCP/IP protocol. Accordingly, reference should be made to the appended claims as indicating the scope of the invention.

Claims

What is Claimed:
1. A method for local power distribution device monitoring and control, comprising the steps of: monitoring the operating status of local power distribution devices using distributed network protocol (DNP); mapping local power distribution device operating status information onto predefined standards-based markup language pages; and transmitting local power distribution device operating status information over a wide area network using TCP/IP protocol.
2. A method as in claim 1, wherein said local power distribution device operating status information comprises at least one of voltage measurements, current measurements, power, operations count, records of time-stamped event data, switch position, tap position, switch and circuit breaker gas pressure, switch and circuit breaker wear data, transformer oil level, and transformer temperature.
3. A method as in claim 1, wherein local power distribution devices are monitored over one of a wireless network, a twisted pair network, or a fiber optic network.
4. A method as in claim 1, wherein said step of mapping local power distribution device operating status information onto predefined standards-based markup language pages comprises mapping local power distribution device operating status information onto one of predefined HTML pages or XML pages.
5. A method as in claim 1, wherein the step of transmitting local power distribution device operating status information over a wide area network using TCP/IP protocol comprises transmitting local power distribution device operating status information over the Internet using TCP/IP protocol.
6. A method as in claim 1, further comprising the steps of: receiving control commands issued in response to said local power distribution device operating status information; and transmitting control commands to local power distribution devices using distributed network protocol.
7. A method as in claim 6, wherein said control commands comprise at least one of commands to open or close a switch, commands for transformer tap change, or commands to shut off or turn on power.
8. A local power distribution device monitoring and control system comprising: a local power distribution connection device for providing access to local power distribution devices using DNP protocol; a dedicated embedded web server for mapping local power distribution device operating status information onto predefined standards-based markup language pages, transmitting local power distribution device operating status information over a wide area network using TCP/IP protocol, and receiving control commands in response to said local power distribution device operating status information.
9. The system according to claim 8, wherein said local power distribution device operating status information comprises at least one of voltage measurements, current measurements, power, operations count, records of time-stamped event data, switch position, tap position, switch and circuit breaker gas pressure, switch and circuit breaker wear data, transformer oil level, and transformer temperature.
10. The system according to claim 8, wherein said local power distribution connection device communicates with said local power distribution devices over one of a wireless network, a twisted pair network, or a fiber optic network.
11. The system according to claim 8, wherein said dedicated embedded web server maps power quality event information onto one of predefined HTML pages or XML pages.
12. The system according to claim 8, wherein said dedicated embedded web server transmits power quality event information over the Internet using TCP/IP protocol.
13. The system according to claim 8, wherein said dedicated embedded web server transmits local power distribution device operating status information over a wide area network using TCP/IP protocol to a web browser.
14. The system according to claim 13, wherein said web browser is connected to the wide area network by an on demand dial up link.
15. The system according to claim 8, wherein said control commands comprise at least one of commands to open or close a switch, commands for transformer tap change, or commands to shut off or turn on power.
EP02806217A 2001-12-26 2002-12-20 System and method for local power distribution device monitoring and control Withdrawn EP1468370A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US34811 1979-04-30
US3481101A 2001-12-26 2001-12-26
PCT/US2002/041343 WO2003058481A1 (en) 2001-12-26 2002-12-20 System and method for local power distribution device monitoring and control

Publications (1)

Publication Number Publication Date
EP1468370A1 true EP1468370A1 (en) 2004-10-20

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EP02806217A Withdrawn EP1468370A1 (en) 2001-12-26 2002-12-20 System and method for local power distribution device monitoring and control

Country Status (7)

Country Link
EP (1) EP1468370A1 (en)
AU (1) AU2002367371A1 (en)
BR (1) BR0207590A (en)
FI (1) FI20031192A7 (en)
NO (1) NO20033786L (en)
SE (1) SE0302284L (en)
WO (1) WO2003058481A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3370370B1 (en) 2008-04-18 2020-12-09 Thierry Schuffenecker Communication method for elements that form an electricity distribution network and devices for implementing the method
CN104009543B (en) * 2014-05-08 2016-03-09 南京国电南思科技发展有限公司 The supervision method of transformer station's secondary equipment running status
CN107482779B (en) * 2017-09-20 2019-12-13 广东电网有限责任公司电力科学研究院 Electric power system with good operation

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US5673322A (en) * 1996-03-22 1997-09-30 Bell Communications Research, Inc. System and method for providing protocol translation and filtering to access the world wide web from wireless or low-bandwidth networks
JPH1166763A (en) * 1997-08-21 1999-03-09 Nec Corp Method of reading data disk and record medium on which reading procedures are recorded
US6138150A (en) * 1997-09-03 2000-10-24 International Business Machines Corporation Method for remotely controlling computer resources via the internet with a web browser
US7062359B2 (en) * 2000-12-29 2006-06-13 Abb Ab Substation control system
US20020087220A1 (en) * 2000-12-29 2002-07-04 Tveit Tor Andreas System and method to provide maintenance for an electrical power generation, transmission and distribution system
US20020162032A1 (en) * 2001-02-27 2002-10-31 Gundersen Lars S. Method, system and computer program for load management

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Also Published As

Publication number Publication date
FI20031192L (en) 2003-10-15
BR0207590A (en) 2004-03-09
AU2002367371A1 (en) 2003-07-24
SE0302284D0 (en) 2003-08-26
NO20033786D0 (en) 2003-08-26
SE0302284L (en) 2003-10-27
FI20031192A7 (en) 2003-10-15
WO2003058481A1 (en) 2003-07-17
NO20033786L (en) 2003-10-24

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