Smart Metering with ZigBee

2nd European ZigBee Developers Conference 2008 - Munich

Smart Metering with ZigBeeReferee: Dipl.-Inf. Cdric Brfent Fraunhofer-Institute for Solar Energy Systems ISE, Freiburg i.Br., Munich, 25. June 2008

ISE Projects in Smart Metering, Dept. EES, Group EMS (BSR) New: eTelligence (Social) One winner in E-Energy (BMWi in consortium with EWE AG). Working: EWE Box (Technical) Industry project, order of EWE AG. Working: Smart Metering (Social) Technology and potentials for reduction of energy consumption and augmentation of energy efficience, (BMWi, MVV u.a.). Working: DEMAX (Technical) Decentralized Energyand netMAnagement with variable electricity tariffs, (BMWi InnoNet). Working: WP-Efficience (Technical) Monitoring of heat pumps, (BMWA, ESC pp. ). Working: Intelliekon (Social) Effective energy consumption of household with smart meters and tariff systems (BMBF).


Overview of the presentation Introduction of AMM AMM Project draft and challenges ZigBee Service (Smart) Energy Gatway (SEG) ZigBee Display Summary

Intro: What is Advanced Meter Management (AMM) ?Electric utility Customer

Better energy grid management, Reduction of legal expenses, Customer binding, Remote switch/connection, (2-way-communication).

Transparency, Consumption reports, added values, Stimulation for energy saving (tariff), Smart devices, etc.

AMM: Influencing factorsTechnological basic conditions Meter structure, Standardisation, Communication channels.

Motivation

Regulated requirements, Savings, Legal expenses, Added values, Cut peak demands, Uninterrupted services, Transparency, Smart grids. Regulated Basic conditions Liberalisierung, Decartelisation, Law on measures and calibration.

AMM Europe

Potential Capacity

Average energy consumption Renewable energies, Load shifting.

Project Smart Metering - Draft


AMM-Concepts Project difficulties: Disjunct domains! Smart (electronic) Meter Smart Grid

Home Automation Automated Meter Reading


Service Energy Gateway (SEG) Multi Utility Controller

Secondary communication

SEG ZigBee M-Bus Ethernet

Primary communication

Tertiary communication

ISE

Display

SEG Project Structure

ZigBeeMeter for: -Electricity -Gas

M-Bus

SEG

openvpn rsync Scheduling server (at Strato)? DSL Copy to ftp server

SOAP

ExternWebaccess RMS Remote Meter Reading System EDM Energy Data Management System


Smart Metering project system parameters: Database: PostGres (Conf: ODBC/Access, WebFrontent/PhpPgMyadmin, Shell/psql) SEG: ZigBee+M-Bus+Ethernet-LAN (Conf: Linux) Meter: M-Bus Gas + Electricity Visualisation: ZigBee-QT-Display (local), Homepage Scheduling Server: Cron (15min), data+ctrl-interface.


Smart Metering project security parameters: Primary: M-Bus: none (passive via wire) Secondary: ZigBee: Fixed Network address, Encryption 128bit AES Tertiary: OpenVPN, https: SSL


Description SEG-Gateway 1 (prototype)


Description SEG-Gateway 2 (project version)


SEG Gateway - Controller Software: Timeserver: rdate RFC868 Dataserver: rsync Datamanagement: mux (ISE-C program) M-Bus-master: read_mbus (ISE-C program) ZigBee-server: zigbeed (ISE-C program)


SEG Gateway - ZigBee module Strength of Telegesis ETRX2: Encryption (AES) Automatics Stability (Forum) Availability (Modules, USB dongles)


Telegesis ZigBee module Server automatic: a) Energy scan on all channels in S00 b) PAN start with random PAN ID on quietest channel c) Random security key (S03=0..0) Server manual: a) S00: select channel b) S01: select PAN ID (!FFFF) c) S03: own AES key


Telegesis ZigBee module Client automatic: a) Scan network for PANs b) Joins PAN with best RSSI value Client manual: a) Set PAN ID (stored) b) Set AES key (stored)


ZigBee enabled Display


ZigBee enabled Display


ZigBee display software project screenshots:


Project Summary

ZigBee: Modules work very well! 10 of 80 (160) systems installed Range extenders needed SEG: 3-Interfaces-system solid until now. VPN works so far. Display: ZigBee datarate good suited.

QT-GUI works well for tariff and load visu.


Summary Todos: AMI: Advanced Meter Infrastructure profile: Energy Service Portal In-Premise Display Smart Appliances ZigBee Meters: We need them in Germany. Merging: Primary,secondary communication. Wide-range-ZigBee: Cluster of multiple houses. Gateways: MBUS-2-ZigBee (AMI)


Thank you for your friendly attention!

http://www.ise.fraunhofer.de [email protected]

Smart Metering with ZigBee

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