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Homeflex Proof of Concept Architecture PowerPoint PPT Presentation


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Homeflex Proof of Concept Architecture. Sham Dhrampal January 2008. Purpose. To discuss the Homeflex Proof of Concept Architecture To discuss lessons learnt To share the blueprint related to AMI/Smart Metering. Homeflex Architecture.

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Homeflex Proof of Concept Architecture

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Homeflex

Proof of Concept

Architecture

Sham Dhrampal

January 2008


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Purpose

  • To discuss the Homeflex Proof of Concept Architecture

  • To discuss lessons learnt

  • To share the blueprint related to AMI/Smart Metering


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Homeflex Architecture


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Integration between Vendor Master Stations and Eskom Systems


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Application and Integration Layer (EAL)


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Application and Integration Layer (EAL)

  • Wanted a common back-end systems infrastructure to cater for multiple metering systems (Vendor Master Stations)

  • The metering systems will interact with our back end systems (CC&B, OVS, Maximo) via a common integration /meter data management layer – regulated interfaces

  • For the Proof of Concept (PoC), this integration and application layer was custom developed.

  • In future

    • EAL will be replaced by a COTS product (Meter Data Management system)

    • All interfacing will comply to IEC 61968 & 61970 (Common Information Model) (refer specifically to IEC 61968-9 Interface for meter reading)

    • The meter data management system is a building block for metering and will be used by Homeflex and any other related AMI/smart metering initiatives


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What does this layer do?

  • Receives data from billing system, performs mapping and sends on to relevant metering system

  • Receives data from metering systems, validates and sends (when required) to billing system

  • Stores

    • Half hourly data

    • Master data

    • Mappings

    • Load shed schedule


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Integration

  • Between Application and Integration layer (EAL) and billing system (CC&B)

    • From CC&B to EAL

      • Master data

      • Meter read schedule

    • From EAL to CC&B

      • Meter Reads (summarised)

  • Between Application and Integration layer (EAL) and vendor master stations

    • From EAL to VMSs

      • Send Load shed schedule

      • Execute emergency (geyser) load shed

      • Request on demand meter read

    • From VMSs to EAL

      • Meter reads (both half hourly and summarised)

      • Load shedding notification


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Lessons Learnt

  • Mapping of data between the billing system, EAL and VMSs:

    • Meters

    • Meter Reads

      During PoC, existing interfaces were used, in the next phase information and data architecture to be well defined

  • Integration between CC&B and EAL during the PoC was flat file based, in future integration will be more real time

  • Still envisaged that integration to VMSs will be via web services

  • Shadow billing done in PoC. Transition from conventional to TOU in the billing system requires careful planning:

    • Process to switch over from standard rates to TOU rates in billing systems

    • TOU billing approx 4-5 months after smart meter installation

  • Understand new meter changeout process and systems impact (in which system is data captured first? Which are the source systems?)


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Our vision…


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AMI/Smart Metering Systems Blueprint

  • Principles:

    • The common back-end systems infrastructure will cater for all 3 customer segments (LPU, SPU and prepayment)

    • Cater for multiple metering systems (also referred to as vendor master stations and head end systems)

    • The systems blueprint will cater for multiple communication mediums i.e. GPRS, PLC, BPLC, RF etc.

    • All interfacing will be XML based and comply to IEC 61968 & 61970 (Common Information Model) (refer specifically to IEC 61968-9 Interface for meter reading)

    • Multi vendor master station (MVMS) is required that can accommodate multiple meters (with different communication protocols) and communication mediums


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Systems Blueprint

The systems blueprint will cater for the following:

  • Meter Event Messages

    • Outage Detection, Meter Health, Tamper/Theft Events

    • Power Quality Event

  • Customer Data Synchronization

  • Meter Readings

    • Periodic Meter Reads

    • On-Request Meter Read

    • Historical Meter Data Access

    • Billing Inquiry

  • Meter Control Messages

    • Load Control

    • Meter Installation

    • Meter Configuration

    • Meter Disconnect and Reconnect

    • Real-Time Pricing

  • Downloading of tokens to prepayment meters

  • Please note that systems blueprint will cater for the above however some of the above functionality depends on the capability of the meter and/or metering system.


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Systems Blueprint

Metering Systems

(Head End Systems)

Eskom Systems

Metering System 1

Meter Reads

Interval data

Demand data

Voltage data

Power reliability and quality events

Meter health and

tamper detection

Outage notifications

Meter Install,

Remove,

Disconnect,

Reconnect

Meter Data Management (MDM)

Meter Reads

On request meter reads

Customer and meter data synch

Remote Connect/Disconnect

CIS/ Billing System

Metering System 2

Outage Management System

Power reliability and quality events

Outage and restoration verification

Meter Management

Metering System 3

Meter health and tamper detection

Install, Remove, Disconnect, Reconnect

Work Management

Metering System 4

Transaction Information (Tokens)

Online Vending Server


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Reference Architecture (Source: IEC 61968-9 Interface for meter reading)


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CC&B

CC&B

CC&B

Load

Management

Load

Management

Enerweb Application and Integration Layer

COTS, Standards Compliant System for residential and C&I

COTS, Standards Compliant System

Meter Data

Management

Meter Data

Management

Load

Management

Meter Data

Management

Meter Data

Management

Collection Engine

Collection Engine

MV90

Service Mode (C&I)

Collection Engine

Vendor System

Master Station

VMS

VMS

VMS

Meters

Meters

Meters

Meters

Meters

Meters

Meters

Meters

Meters

Meters

Meters

Industry Standards e.g. DLMS, ANSI C12.22

Blueprint for Open Standards phasing-in

Proof of Concept

  • Use proprietary system master stations and meters

  • Enerweb layer providing application and integration with custom developed components for meter data management (MDM) and load management

Transition (Plug-in Plug-out)

  • Replace meter data management and collection engines with COTS, standards compliant products

  • MDM to be used for settlements, KSACS, Homeflex and LPU’s

  • Remove proprietary vendor master station systems

National Rollout

  • COTS, standards compliant system with collection engines for residential – Multi-vendor Master Station

  • Majority of functionality resides in multi-vendor master station and not meters (although meters need to be smart meters, ToU capable)

Proprietary

Open Standards

X 3

COTS/MVMS


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Homeflex Roadmap


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