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Remote access energy meter system and method

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Publication number
US20080143554A1
US20080143554A1 US12070925 US7092508A US2008143554A1 US 20080143554 A1 US20080143554 A1 US 20080143554A1 US 12070925 US12070925 US 12070925 US 7092508 A US7092508 A US 7092508A US 2008143554 A1 US2008143554 A1 US 2008143554A1
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Prior art keywords
energy
meter
system
remote
client
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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.)
Abandoned
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US12070925
Inventor
Ezra Green
Robert Dockweiler
William O'Connor
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Carbon 612 Corp
Original Assignee
Ezra Green
Robert Dockweiler
O'connor William
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D4/00Tariff metering apparatus
    • G01D4/002Remote reading of utility meters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D4/00Tariff metering apparatus
    • G01D4/002Remote reading of utility meters
    • G01D4/004Remote reading of utility meters to a fixed location
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00Arrangements for measuring electric power or power factor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q9/00Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2209/00Arrangements in telecontrol or telemetry systems
    • H04Q2209/10Arrangements in telecontrol or telemetry systems using a centralized architecture
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2209/00Arrangements in telecontrol or telemetry systems
    • H04Q2209/40Arrangements in telecontrol or telemetry systems using a wireless architecture
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BINDEXING SCHEME RELATING TO CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. INCLUDING HOUSING AND APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/34Smart metering supporting the carbon neutral operation of end-user applications in buildings
    • Y02B70/346Systems which monitor the performance of renewable electricity generating systems, e.g. of solar panels
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BINDEXING SCHEME RELATING TO CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. INCLUDING HOUSING AND APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Systems integrating technologies related to power network operation and communication or information technologies mediating in the improvement of the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as enabling technology in buildings sector
    • Y02B90/24Smart metering mediating in the carbon neutral operation of end-user applications in buildings
    • Y02B90/241Systems characterised by remote reading
    • Y02B90/242Systems characterised by remote reading from a fixed location
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S20/00Systems supporting the management or operation of end-user stationary applications, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y04S20/30Smart metering
    • Y04S20/32Systems characterised by remote reading
    • Y04S20/322Systems characterised by remote reading from a fixed location
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S20/00Systems supporting the management or operation of end-user stationary applications, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y04S20/30Smart metering
    • Y04S20/52Systems oriented to metering of generated energy or power
    • Y04S20/525Monitoring the performance of renewable electricity generating systems, i.e. of solar panels

Abstract

A remote energy meter system and method is provided having a meter server and a client module located remotely from the meter server. The meter server communicates with the client via a wireless communications link to recover energy production parameter values. The remote energy meter system preferably provides real-time and automated monitoring of, at least, energy production and system failure parameters.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • [0001]
    The present application is a continuation of U.S. patent application Ser. No. 11/177,035 filed on Jul. 8, 2005, now pending, which claims priority of U.S. Provisional Patent Application No. 60/586,993 filed on Jul. 9, 2004. The aforementioned applications are hereby incorporated herein by reference in their entirety.
  • BACKGROUND OF THE INVENTION
  • [0002]
    1. Field of the Invention
  • [0003]
    The present invention relates to an energy monitoring system. More particularly, the present invention relates to a remote access energy monitoring system that remotely monitors energy production of an energy generating source.
  • [0004]
    2. Description of the Related Art
  • [0005]
    Energy generation systems are complex and costly to establish, operate, and maintain. A key component in the maintenance and operation of energy generation facilities is the accurate monitoring of the system's performance and health status. Accordingly, it is important to accurately and timely monitor and analyze key parameters of the energy generation facility's operating parameters. Such monitoring becomes increasingly vital in remotely located energy generation facilities.
  • [0006]
    Thus, there exists a need to provide an efficient and reliable system and method of remotely accessing and monitoring energy generation installations.
  • SUMMARY OF THE INVENTION
  • [0007]
    It is an object of the present invention to provide a remote access energy meter system that provides remote monitoring of an energy generation facility.
  • [0008]
    It is another object of the present invention to provide such a remote access energy meter system that provides real-time monitoring of the energy generation facility.
  • [0009]
    It is still another object of the present invention to provide such a remote access energy meter system that can automatically monitor a number of energy production parameters of the energy generation facility.
  • [0010]
    It is yet another object of the present invention to provide such a remote access energy meter system that facilitates detection of energy production parameters indicative of system failure and/or system degradation.
  • [0011]
    These and other objects and advantages of the present invention are achieved by a remote energy meter system having a meter system server and a client module located remotely from the metering system server. The meter system server communicates with the client to recover energy production parameter values. The remote energy meter system preferably provides real-time and automated monitoring of, at least, energy production and system failure parameters.
  • DESCRIPTION OF THE DRAWINGS
  • [0012]
    FIG. 1 is an exemplary schematic diagram of the remote access energy meter system of the present invention.
  • DETAILED DESCRIPTION OF THE INVENTION
  • [0013]
    Referring to FIG. 1, there is shown a remote access energy meter system generally represented by reference numeral 100. Remote access energy meter system 100 is also referred to herein as meter system.
  • [0014]
    Meter system 100 includes, in general, a client module 5 and a meter server 10. Client module 5 interfaces with and monitors a source of energy, such as an energy generation or production facility or installation. Various parameters related to the production of energy by the energy generation facility can be monitored by client module 5.
  • [0015]
    The energy source may vary. In one aspect of the present invention, the energy source is an alternative energy source. The alternative energy sources can include solar, wind, geo-thermal, tidal, and other types of non-fossil fuel dependent energy generation facilities. It should be appreciated however that the particular type of energy source monitored by meter system 100 can vary. The energy source may be a conventional fossil fuel driven energy installation.
  • [0016]
    Notwithstanding the particular energy source being monitored by meter system 100, data received by client 5 can be communicated to meter server 10 that is located remotely, some distance apart from client module 5. While alternative energy facilities may be located in sparsely populated areas or even dispersed over geographically large areas, any energy source can be monitored by remote meter system 100.
  • [0017]
    Client module 5 is preferably powered from the energy generation facility's standard AC service. Client module 5 may be non-functional during blackout and severe brownout conditions. If a power failure exceeds a predetermined period of time, for example two hours, then meter system 100 preferably automatically reports the failure to meter sever 10 upon resumption of net power. In certain embodiments hereof, an uninterruptible power source or alternative power source 6, preferably including a backup power management system, can be used to provide an alternative or secondary power source for client module 5.
  • [0018]
    Client module 5 preferably provides real-time monitoring of operating parameters in order to detect, for example, system production, status, and failures. Referring to FIG. 1, client 5 is shown monitoring a solar energy facility 1. A number of photovoltaic (PV) arrays 15, 20, 25 are provided to directly convert solar energy (e.g., sunlight) into electricity. PV arrays 15, 20, and 25 generate DC electricity. AC current is monitored using, for example, external toroidal sensor coils (not shown). Energy totals are preferably registered and stored in a non-volatile memory in case of power failure. DC voltmeter 30 monitors the output voltage of the individual PV array strings 15, 20, 25. Data processor 60 monitors the AC and DC inputs to the client module 5 in order to detect system failure and status. Client module 5 preferably detects and reports, at least, PV array string failures and power inverter failures to sever 10.
  • [0019]
    The DC electricity is converted to AC electricity by one of a number of inverters 35. DC electricity is an input to inverter 35 and AC electricity is an output of inverter 35. AC meter 55 accepts current and voltage data from the AC output of each inverter 35.
  • [0020]
    The output of inverter 35 includes a phase A 40, phase B 45, and a ground potential 50. The output of the inverter is monitored by an AC meter 55. AC meter 55 accepts current and voltage data from the AC output of each inverter 35. AC meter 55 preferably measures various parameters of AC electricity output by inverter 35. For example, AC meter 55 measures the currents and voltages of the AC electricity output by inverter 35. It should be appreciated that additional characteristic parameters of the AC energy can be monitored and measured by AC meter 55.
  • [0021]
    Client module 5 further includes a data processor 50 for processing the data measured by DC voltmeter 30 and AC multifunction meter 55. The processes can include formatting, reading, storing, and determining various relationships between the measured parameters and/or relative to desired or preset values for the parameters.
  • [0022]
    Remote interface 65 provides access to client module 5 from the server for monitoring energy produced. Remote interface 65 can be used by client module 5 to report system failure to meter server 10. Remote interface 65 provides a communication gateway for communicating data processed by data processor 60 to remotely located meter server 10. Remote interface 65 may perform numerous functions, including converting data from data processor 60 into a format suitable for transmitting to server 10. The output of remote interface 65 is preferably in a condition for transmission over communication link 75 without the need of further signal conditioning by communications link 75.
  • [0023]
    In some embodiments hereof, communication link 75 is preferably a wireless communication system such as a cellular link, microwave link, a satellite communication link and any combinations including these and other wireless communication links. It should be appreciated that at least a portion of communication link 75 may not be wireless since, for example, cellular and satellite communication links may interface with terrestrial communication systems such as a PSTN that includes non-wireless communication links.
  • [0024]
    Meter server 10 is an automated data retrieval system. Meter server 10 includes, generally, a remote interface 80 that provides a communication gateway for communicating data received over communications link 75. Remote interface 80 may perform numerous functions, including converting data from communications link 75 into a format suitable for being received and processed by meter system server 85. Meter system server 85 preferably maintains a database of meter system 100 client data. The processing can be done via a microprocessor.
  • [0025]
    In an embodiment hereof, a primary client identification is the remote energy generation facility's access number. For an installation using a dedicated telephone line or cellular modem, the primary client identification can be the eleven digit phone number. For installations using LAN or WiFi, the primary client identification can be a twelve digit fixed system IP address. Meter server 10 can regularly and automatically access the remote client module(s) 5 to recover and record current energy totals. Current energy totals can be compared to previously retrieved data to calculate energy production.
  • [0026]
    Client access can be configured to occur daily, weekly, monthly or any other customized time period. Automated remote access can be scheduled to occur, for example, between 11:00 AM and 1:00 PM at the remote site. Remote client module(s) 5 can be non-functional during blackout and severe brownout conditions. In the instance meter server 10 fails to connect to a client module 5 then site access is rescheduled, as an example, for the following day. In the event a second no connect condition occurs then an error report is transmitted (e.g., by email) a system administrator of meter system 100. In the instance subsequent contact is successful then meter system 100 assumes a utility power failure or brownout and logs the event.
  • [0027]
    Sites suspected or known to have frequent power failures can be flagged for more frequent contact. If the problem persists the site history logs can be used to document the utility failures to the power authority responsible for the client's site.
  • [0028]
    While the instant disclosure has been described with reference to one or more exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope thereof. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the disclosure without departing from the scope thereof. Therefore, it is intended that the disclosure not be limited to the particular embodiment(s) disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (16)

1. A remote energy meter system for detecting energy production parameters of an energy generation facility comprising:
a client module operably connected to the energy generation facility for collecting data representative of the energy production parameters;
a backup power management system for providing an alternative or secondary power source for the client module; and
a server located remotely from the client module, wherein the server communicates with the client module to recover the energy production parameters.
2. The remote energy meter system of claim 1, wherein the client module is powered by a standard AC service provided by the energy generation facility.
3. The remote energy meter system of claim 1, wherein the server receives real-time energy production parameters.
4. The remote energy meter system of claim 3, wherein the real-time energy productions parameters are selected from the group consisting of system production, status, and failures.
5. The remote energy meter system of claim 1, wherein the energy generation facility is a solar energy facility.
6. The remote energy meter system of claim 5, wherein the solar energy facility provides a plurality of photovoltaic arrays that convert solar energy into electricity.
7. The remote energy meter system of claim 6, wherein the photovoltaic arrays generate DC electricity.
8. The remote energy meter system of claim 7, wherein the DC electricity is converted to an AC output by one or more inverters.
9. The remote energy meter system of claim 8, wherein the AC output is comprised of a current and a voltage.
10. The remote energy meter system of claim 8, further comprising an AC meter that measures the AC output from the one or more inverters.
11. The remote energy meter system of claim 10, further comprising a DC voltmeter that measures the DC electricity generated by the photovoltaic arrays.
12. The remote energy meter system of claim 11, wherein the client module further comprises a data processor that processes data measured by the DC voltmeter and the AC meter.
13. The remote energy meter system of claim 1, wherein the server communicates with the client module via a communications link selected from the group consisting of a wireless link, a cellular link, a microwave link, and a satellite link.
14. A method of remotely monitoring an energy generation installation comprising:
measuring operating parameters of a remote access energy meter system with a DC voltmeter and an AC meter;
storing the operating parameters in a non-volatile memory;
processing the operating parameters with a data processor;
generating a signal representative of the operating parameters; and
communicating the operating parameters from the remote access energy meter system to a server located remotely from the energy installation.
15. The method of claim 14, wherein the operating parameters are selected from the group consisting of AC input, DC input, AC output, output voltage and output current.
16. The method of claim 14, wherein the operating parameters are communicated to the server via a communications link selected from the group consisting of a wireless link, a cellular link, a microwave link, and a satellite link.
US12070925 2004-07-09 2008-02-22 Remote access energy meter system and method Abandoned US20080143554A1 (en)

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US12070925 US20080143554A1 (en) 2004-07-09 2008-02-22 Remote access energy meter system and method

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