WO2012142682A1 - Système de lecture à distance, de traitement de données et de gestion de la consommation d'énergie électrique - Google Patents

Système de lecture à distance, de traitement de données et de gestion de la consommation d'énergie électrique Download PDF

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Publication number
WO2012142682A1
WO2012142682A1 PCT/BG2011/000015 BG2011000015W WO2012142682A1 WO 2012142682 A1 WO2012142682 A1 WO 2012142682A1 BG 2011000015 W BG2011000015 W BG 2011000015W WO 2012142682 A1 WO2012142682 A1 WO 2012142682A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
electric energy
control center
consumption
end devices
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
PCT/BG2011/000015
Other languages
English (en)
Inventor
Krasimir KUZMOV
Stefan DIKARLO
Biser FILIPOV
Jivko IVANOV
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.)
"ADD - BULGARIA" OOD
Original Assignee
"ADD - BULGARIA" OOD
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 "ADD - BULGARIA" OOD filed Critical "ADD - BULGARIA" OOD
Publication of WO2012142682A1 publication Critical patent/WO2012142682A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D4/00—Tariff metering apparatus
    • G01D4/002—Remote reading of utility meters
    • 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
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/30—Smart metering, e.g. specially adapted for remote reading

Definitions

  • the utility model pertains to a system for remote reading, data processing, and management of the consumption of electric energy to be used both in industrial and residential applications.
  • the system shall be able to send signals to the electric energy consumption metering and control units according to predefined criteria.
  • the system shall therefore be used in all fields that require transmission of metering data, information about the states of devices, about the values of parameters monitored by all kinds of measuring devices, management of control and actuating mechanisms incorporated in metering devices, transmission and processing of reading data and remote control of processes.
  • control center consists of a communications server, a database to store the readings and configurations of the end devices, and a user module providing the users at the utility company with access to the data to be analyzed, processed and exported to other systems.
  • the electromechanical meter converts analog information to digital data that is transmitted to the control center.
  • the mechanical movement of the disk is proportional to the current in the phase circuit, the voltage and the used electric energy respectively.
  • the meter dials- up the center via built-in modem using the subscriber's telephone line and, when connection is established, sends data to the center which in turn sends data to the meter (if any) such as configuration and subscription rates.
  • the system is used for remote reading of electric meters through the public telephone network and over the Internet.
  • the objective is to build a system for remote reading, data processing, and management of the consumption of electric energy that would avoid the drawbacks of the existing such systems like the need for telephone lines available at the reading spot, which makes the latter inapplicable in certain cases.
  • the existing infrastructure power distribution grid
  • the existing infrastructure is put to profit making the building and maintenance of the system easier and more efficient and minimizing the cost.
  • the objective is attained using a system that includes end devices, which may be electric meters (either single-phase or three-phase), street lighting controllers, large load controllers, etc.
  • the end device measures the consumption and the parameters of the electric energy and uses power lines communications (PLC) or wireless communications to transmit such data to an intermediate communications device or directly to the control center.
  • PLC power lines communications
  • One of the preferred embodiments of the system for remote reading, data processing, and management of the consumption of electric energy involves end devices with incorporated modems connected through communications means to a control center.
  • the modems at the end devices are equipped with built-in relay for remote on/off switch, a differential current sensor and a digital or analog signal processing, transmitting and receiving unit, which is a modem.
  • the communications means contains at least one data transceiver whereas the control center contains a modem for communication.
  • the end devices are connected to at least one data receiver and transmitter over a low-voltage grid.
  • a second data receiver transmitter Between the control center and the data receiver/transmitter there is a second data receiver transmitter and the connection between the two data transceivers is established over a medium-voltage grid.
  • the second data transceiver is equipped with incorporated communication modems and the connection between the data transceiver and the control center is achieved through a local area network.
  • the end devices are connected to at least one of the units that receive and transmit data over the low-voltage grid, the connection between the data transceiver and the control center being achieved through a mobile communications network.
  • the end device which may be a single-phase or three-phase electronic energy meter, a street lighting controller, a large loads controller or a similar device, measures the consumption and the parameters of the electric energy and may accommodate access control elements (such as a meter cover opening sensor) and consumption control elements (like a differential current sensor).
  • the end device is equipped with a modem for wired or wireless communication with the intermediate communication unit or directly with the control center.
  • the communication unit is equipped with incorporated modems for wired or wireless communication, or a combination of these two, to connect with the end devices from one side, and from the other side with the control center.
  • the communication unit receives and transmits data between the end devices and the control center and provides multiplexing of the numerous low-speed connections with the end devices over the existing power lines into a high-speed connection with the control center.
  • the control center accommodates communication modules that may vary in type to support different communication interfaces (wired or wireless) and in number depending on the number of the end devices and intermediate communication units in the system, database for storage of the data from the end devices and an user module for access, processing and analysis of the data and control of the system.
  • the system in accordance with the invention provides two-way communication in real time between the control center and the end devices.
  • the system users such as the power utility companies, have immediate access to "screenshot still" of the information over the whole system, in other words to information about the parameters and the status of the system at a given moment.
  • the system extremely facilitates the making of decisions about the management of the infrastructure by the power utility company.
  • the proposed solution allows avoiding the restrictions of the existing similar systems such as the need for availability of telephone lines, which in some cases requires the building of additional infrastructure and in other cases makes them inapplicable.
  • the use of the existing infrastructure is optimized and the cost of external services (telephone and internet services or mobile communications) and the dependence from the providers of such services is minimized.
  • the use of intermediate communication units that concentrate the date from a large number of end devices minimizes the load of the communication modules at the control center and allows the system to be extended to cover millions of end devices.
  • a relay switch allows individual subscribers to be connected to or disconnected from the power distribution system as needed.
  • On the basis of the information about the consumption and the parameters of electric energy it is possible for an operator or for the system itself using predefined criteria set forth by the utility company or by the end user to undertake actions for connection or disconnection.
  • This from one side allows quicker and more flexible reaction on the part of the utility company, and improves the services they provide to the client.
  • On the other side it eliminates the need for a utility company employee to visit the residence and cuts expenses, especially in the case where the metering board is not readily accessible (e.g. mounted on a pole) and requires the use of lifting platforms.
  • the relay switch provides protection for the client from the power distribution network and for the power distribution network from the client in the case of failures or emergency situations. This guarantees the quality of the service provided to the client and additionally extends the capabilities of the power utility company.
  • Figure 1 Block diagram of remote metering system that uses the low-voltage lines of the power distribution grid and mobile communications network
  • Figure 2 Block diagram of remote metering system that uses the low-voltage and medium-voltage lines of the power distribution grid;
  • Figure 3 Block diagram of Remote metering system that uses mobile communications network
  • the end devices with incorporated modems are connected through communication means to the control center 3.
  • the modems at the end devices 1 accommodate switch relays 5 for remote switching on or off; differential current sensor 6 and device for processing, transmitting and receiving digital or analog signal 7.
  • the communication means contains a device for receiving and transmitting data 2, the control center 3 contains communication modem and the connection between the device for receiving and transmitting data 2 and the control center 3 has communication modem 13'.
  • the end devices 1 are connected to at least one device for receiving and transmitting data 2 over low-voltage grid 10.
  • second data transceiver 4 Between the control center 3 and the data transceiver 2 is located second data transceiver 4 and the communication between the two data transceivers 2 and 4 is achieved over the medium-voltage grid 11.
  • the second data transceiver 4 accommodates incorporated communications modems 8' and 9, and the communication between the data transceiver 4 and the control center 3 is achieved over local area network 12.
  • the end devices 1 are connected to least one of the data transceivers 2 over low-voltage grid 10 whereas the communication between the data transceiver 2 and the control center 3 is achieved through mobile communications network 14.
  • the electric energy metering, data processing and use management system is designed to measure the consumption of electric energy and measure the parameters of the supplied energy on the basis of data analysis and processing whereas the system sends signals to the electric energy metering and control devices in accordance with criteria set forth in advance.
  • the end device 1 that may be an electric meter records the reading in its internal memory and using the incorporated modem 7 for communication over the low-voltage power distribution grid 10 transmits the recorded data to the transceiver 2 located at the transformer station.
  • the data transceiver 2 is able to collect the data from all electric meters 1 powered from the transformer station that measure the electric energy used by clients of the low-voltage grid.
  • the data transceiver 2 sends via its incorporated modem for communication over the medium-voltage grid 8 over the existing medium-voltage power distribution grid 11 data received from the electric meters to the second device 4 located at the substation.
  • the substation is in continuous communication with the headquarters of the power utility company where the control center 3 is located (hired lines, optical fiber cables or Ethernet).
  • the second data transceiver 4 on the medium-voltage grid collects data from several transceivers 2 on the low-voltage grid (for example from all kiosk switchgears powered from the substation) and sends it via the modem 9 to the control center 3 through the local area network of the power utility company 12. In this way, data is transmitted using exclusively the existing infrastructure without need for service providers cost.
  • the data transceiver on the low-voltage grid 2 may use a GPRS mobile communications modem 13 to connect directly to the control center 3 over mobile communications network 14.
  • a GPRS mobile communications modem 13 to connect directly to the control center 3 over mobile communications network 14.
  • two completely independent infrastructures for remote reading and management of energy consumption may be built managed by a single control center.
  • one electric energy metering system using power lines communications and another street lighting control system using wireless communications could be built. This would give a great advantage to large companies that supply and manage different energy resources and structures, which allows optimizing the investments, resources and maintenance cost.
  • the system could use a GPRS mobile data services modem 13 for direct communication with the control center 3.
  • the data from the electric energy meters shall be recorded and stored in the database of the control center.
  • the user module shall grant access to this data to operators of the system for analysis, reference and export of data, as well as to the utility company's clients for verification of their use.
  • the presence of an incorporated relay switch further allows protection of the user from the power transmission grid and protection of the power transmission grid from the user.
  • the system provides the possibility to set forth criteria related to the quality of electric energy that the system will be able to monitor and undertake the relevant measures. This guarantees the high quality of the services provided to the subscriber and gives additional capacity to the power utility company.
  • large load controllers could be used as end devices in the system.
  • the power utility company could propose preferential prices for electric energy to the clients against their consent to connect their large loads (like a water heater or air conditioning system) to such a controller.
  • the power utility company shall be able to disconnect certain loads within a given area at peak hours for a given period of time (the period of peak load) to prevent failures in the power supply system. This would not disturb in any way the comfort of the user or the quality of the services (the residence will still have power supply). This would allow the power utility company to take part to the national system for balancing the use of electric energy.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

L'invention porte sur un système qui comprend des dispositifs d'extrémité (1) sous la forme d'un compteur d'énergie électrique monophasé ou triphasé qui mesure la consommation et les paramètres d'énergie électrique et, par l'intermédiaire d'une communication par courants porteurs en ligne (PLC) sur le réseau de distribution d'électricité existant ou par l'intermédiaire de communications sans fil, transmet les lectures à une unité de communication intermédiaire (2,4) ou directement au centre de commande (3). La combinaison de technologies de communication filaire et sans fil permet une utilisation optimisée des infrastructures de télécommunication existantes et rend minimal le coût d'investissement initial. Les instruments du système et la gestion de consommation d'énergie directe permettent une localisation des pertes et leur réduction au minimum ou leur élimination, et améliorent également l'efficacité du système, optimisant et réduisant au minimum le coût d'exploitation.
PCT/BG2011/000015 2011-04-18 2011-08-30 Système de lecture à distance, de traitement de données et de gestion de la consommation d'énergie électrique Ceased WO2012142682A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BG1974 2011-04-18
BG197411 2011-04-18

Publications (1)

Publication Number Publication Date
WO2012142682A1 true WO2012142682A1 (fr) 2012-10-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BG2011/000015 Ceased WO2012142682A1 (fr) 2011-04-18 2011-08-30 Système de lecture à distance, de traitement de données et de gestion de la consommation d'énergie électrique

Country Status (1)

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WO (1) WO2012142682A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749992A (en) * 1986-07-03 1988-06-07 Total Energy Management Consultants Corp. (Temco) Utility monitoring and control system
US6239722B1 (en) * 1997-10-16 2001-05-29 Cic Global, Llc System and method for communication between remote locations
US20030158677A1 (en) * 2000-02-29 2003-08-21 Swarztrauber Sayre A. System and method for on-line monitoring and billing of power consumption
US20040059585A1 (en) 2002-09-24 2004-03-25 Poweronedata Corporation Utility power meter, metering system and method
US20040061625A1 (en) * 1997-09-05 2004-04-01 Silver Spring Networks, Inc. Electronic electric meter for networked meter reading
EP1548451A2 (fr) * 2001-12-20 2005-06-29 Enel Distribuzione S.p.A. Système pour la lecture à distance et le contrôle de la consommation d'énergie électrique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749992A (en) * 1986-07-03 1988-06-07 Total Energy Management Consultants Corp. (Temco) Utility monitoring and control system
US4749992B1 (en) * 1986-07-03 1996-06-11 Total Energy Management Consul Utility monitoring and control system
US20040061625A1 (en) * 1997-09-05 2004-04-01 Silver Spring Networks, Inc. Electronic electric meter for networked meter reading
US6239722B1 (en) * 1997-10-16 2001-05-29 Cic Global, Llc System and method for communication between remote locations
US20030158677A1 (en) * 2000-02-29 2003-08-21 Swarztrauber Sayre A. System and method for on-line monitoring and billing of power consumption
EP1548451A2 (fr) * 2001-12-20 2005-06-29 Enel Distribuzione S.p.A. Système pour la lecture à distance et le contrôle de la consommation d'énergie électrique
US20040059585A1 (en) 2002-09-24 2004-03-25 Poweronedata Corporation Utility power meter, metering system and method

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