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    Implementing DLMS/COSEM in Smart Meters in Smart Meters: Gordan Štruklec Joško Maršić

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    This document discusses implementing DLMS/COSEM in smart meters. It describes how DLMS/COSEM provides a standardized data model and communication protocol to make meters interoperable and enable two-way communication. The document outlines how existing meters can be upgraded with DLMS/COSEM support to access meter data objects over various communication interfaces and networks. While testing has progressed, challenges remain around addressing networked meters and presenting data values.

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    Implementing DLMS/COSEM in Smart Meters in Smart Meters: Gordan Štruklec Joško Maršić

    Uploaded by

    RIZ
    341 views14 pages
    This document discusses implementing DLMS/COSEM in smart meters. It describes how DLMS/COSEM provides a standardized data model and communication protocol to make meters interoperable and enable two-way communication. The document outlines how existing meters can be upgraded with DLMS/COSEM support to access meter data objects over various communication interfaces and networks. While testing has progressed, challenges remain around addressing networked meters and presenting data values.

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    EEM11_ImplementingDLMS

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    This document discusses implementing DLMS/COSEM in smart meters. It describes how DLMS/COSEM provides a standardized data model and communication protocol to make meters interoperable and enable two-way communication. The document outlines how existing meters can be upgraded with DLMS/COSEM support to access meter data objects over various communication interfaces and networks. While testing has progressed, challenges remain around addressing networked meters and presenting data values.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    341 views14 pages

    Implementing DLMS/COSEM in Smart Meters in Smart Meters: Gordan Štruklec Joško Maršić

    Uploaded by

    RIZ
    This document discusses implementing DLMS/COSEM in smart meters. It describes how DLMS/COSEM provides a standardized data model and communication protocol to make meters interoperable and enable two-way communication. The document outlines how existing meters can be upgraded with DLMS/COSEM support to access meter data objects over various communication interfaces and networks. While testing has progressed, challenges remain around addressing networked meters and presenting data values.

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    Implementing DLMS/COSEM

    in Smart Meters
    Gordan Štruklec
    Joško Maršić
    Contents
     Smart Metering
     DLMS/COSEM
     Making the Meter Smart
     Conclusion
    Smart Metering
     Smart Grids – new visions of the future electric
    system
     Increasing demand for electricity
     Lower carbon generation
     Optimization of operation and usage

     Fully automated power


    delivery network
     Able to monitor and control electricity
    flows to every customer and node
     Two-way flow of electricity and real-time information between power
    plants and appliances
    Smart Metering
     AMI – Advanced Metering Infrastructure
     Measurement, collection and analysis of energy usage data from
    meters
     Various communication media
     Customers relation management, demand site management, local
    power quality monitoring

     The business
     Customer management including supplier change
     Energy supply – billing
     Prepayment
     Load management
     Network condition and health monitoring
     Meter condition and health monitoring
    DLMS/COSEM
     DLMS – Device Language Message Specification
     Generalized concept for abstract modeling of communication entities
     Defines services to access meter data object elements
     Defines profiles to access communication media (PSTN/GSM, Internet,
    Euridis, M-bus, PLC)

     COSEM – COmpanion Specification for Energy


    Metering
     Object model for metering applications
     Every parameter in a meter is represented by a COSEM object

     3 step approach
    DLMS/COSEM

    (C) DLMS-UA
    DLMS/COSEM

    (C) DLMS-UA
    Making the Meter Smart
     The need to solve current AMR issues
     Equipment compatibility and interoperability
     Various communication protocols, but no unique PC software
     Diferent data models – no standardized data interpretation

     New meter
     Compatible with ‘old’ HW and SW
     DLMS/COSEM support added on the top of the current protocol stack

     Smart Meter basis


     Imported and exported active and reactive energy measurement in up
    to 4 tariffs
     Maximum active and reactive demand in all tariffs
    Making the Meter Smart
     Smat Meter basis (2)
     Energy and demand of the last 18 billing periods
     Remote or local billing period reset
     4 months load profile
     Log book of 64 last events
     Current, voltage and phase measurement
     Power quality monitoring and logging: power failures, undervoltages
    and overvoltages
     Tamper detection
     Real-time clock, date and calendar
     Programmable time switching table
     Integrated ripple control receiver
     Tariff-swith inputs
    Making the Meter Smart
     Smat Meter basis (3)
     Programmable LCD sequence
     Load limitation and switching off
     Autonomous battery operation of 10 years
     Self testing
     Number of readouts and configuration changes logging
     Two-way communication interfaces: IEC62056-21, RS485, IEC62056-31

     Changes
     FLASH and RAM exhausted
     Removal of less needed features (IEC62056-31 and/or RCR)
     Adding DLMS/COSEM support through IEC62056-31 (‘Flag’) or directly
    through RS485
    Making the Meter Smart
     New data model
     All values and functionalities mapped to new objects’ attributes
     Mainly used classes: data, register, extended register and profile
    generic
     Logical Name referencing: objects represented by logical names (OBIS
    codes) and class identificators
     3-layer HDLC communication
    protocol, frame type 3
     1 and 4-byte addressing –
    addresses can be changed locally

    (C) DLMS-UA
    Making the Meter Smart
     Testing and verification
     CTT
     No commercial software

     Still current problems


     Addressing of networked meters
     Presentation of data values

     Further improvements
     New ‘smart’ classes
     Limiter
     Image transfer
     Multimeter
    Conclusion
     Smart Meters are the basis for AMI
     DLMS/COSEM proposes the solution to compatibility
    and interoperability issues
     No PC client application that supports all
    DLMS/COSEM features, too broad data presentation
    possibilities -> the need for better definition
    Any questions?

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