ITUSmartGrid Tutorial 02072012 v2 by tyC9OW


									        ITU-T Tutorial and Presentations
                    2 July 2012

      ITU-T and Smart Grid

               Dr. Stefano Galli
   Rapporteur ITU-T Q4c/15 – Comms for Smart Grid
Co-convenor of JCA on Smart Grid and Home Networking

Introduction to ITU
ITU and Smart Grid
ITU’s family of PLC recommendations
ITU cooperation with other SDOs

           Introduction to ITU
Founded in 1865, oldest specialized UN agency
  ITU-T: develops ICT standards
  ITU-R: manages radio spectrum & satellite orbits
  ITU-D: promotes ICT development
Common Patent Policy among ITU/ISO/IEC
Basis for the international telecommunications
networks, over 3000 standards (Recommendations)
Increasingly extending to all aspects of ICTs
Strategic objectives (2012-2015):
  Coordination and international cooperation
  Production of global standards
  Bridging the standardization gap
  Dissemination of information                       3
      Efficient Working Methods

New work items can be agreed and started at any
time, no complex procedures are necessary
  Work areas (Questions) in each Study Groups are up and running

Fast in developing standards
  From weeks to 2-3 years

Recommendations can be approved very fast
  Average: 9.5 weeks

Very fast in publishing standards
  Couple of weeks for pre-published web version after approval
  A few months for edited version
Introduction to ITU
ITU and Smart Grid
ITU’s family of PLC recommendations
ITU cooperation with other SDOs

         Role of ICT in Smart Grid
The fundamental challenge in power grids is to ensure the
balance of generation and demand
The fundamental challenge in the Smart Grid is to ensure
balance of generation and demand when integrating all those
new technologies that are aimed at addressing in a sustainable
manner energy independence and modernization of the aging
power grid:
   Utility scale Renewable Energy Sources (RES) feeding into the
   transmission system
   Distributed Energy Resources (DER) feeding into the distribution
   Plug-in (Hybrid) Electric Vehicles (PHEV)
   Demand Side Management (DSM)
   Consumer participation
   Storage to compensate for the time varying nature of some
               Role of ICT in Smart Grid
•   Supporting the above technologies and applications, requires the
    availability of a modern, flexible, and scalable communications
    network that ties monitoring and control together
•   The true “key” enabler for the Smart Grid is the availability of a
    pervasive two-way data communication network across the
    whole grid, from generation to load

                       Smart grid services                   Security control
                         & applications                     and management

                            Information Communication

         Intelligent grid                Advance metering                  Home automation
          management                       infrastructure                (appliances, PEV, etc.)

                 Related work in ITU-T
     Items                                 SGs and aspects
                             Service Layer use cases, requirements, APIs and
                    FG M2M
                             protocols for healthcare and other application
                             Q3/13 USN, MOC
(1) M2M             SG13     Q12/13 Ubiquitous networking (object to object
                    SG15     Q1/15 IP home network
                    SG16     Q25/16 USN applications and services
(2) Smart
                    SG15     Q4c/15 PHY/DLL aspects of smart metering
                             Collaboration on ITS Communication Standards
(3) Vehicle
                    SG13     Q12/13 networked vehicle
                             Q27/16 Vehicle gateway platform for
                             telecommunication/ITS services /applications
                    SG13     Q12/13 Next generation home network
                             Q1 and Q2/15 IP home network and access network QoS
(4) Access and               Q4a/15 Broadband in-premises networking
Home networking              Q4b/15: Home networking related Smart Grid
                    SG16     Q21/16 home network services
(5) Energy saving
                    SG13     Q21/13 Future network
(6) Smart Grid      SG15     Q4c/15 Communications for Smart Grid
     Focus Group on Smart Grid

Established in Feb. 2010, concluded in Dec. 2011

Management Team
Title             Name
Chairman          Mr Les Brown (Lantiq, Germany)
Vice Chairman     Ms Li Haihua (MIIT, China)
Vice Chairman     Mr Hyungsoo Kim (Korea Telecom, Korea)
Vice Chairman     Mr Yoshito Sakurai (Hitachi, Japan)
Vice Chairman     Mr David Su (NIST, USA)
TSB Secretariat   Mr Hiroshi Ota
TSB Assistant     Ms Emmanuelle Labare

             FGSmart - Scope
  Identify impacts on standards development
  Investigate ITU-T study items
  Familiarize ITU-T with emerging attributes of Smart Grid
  Encourage collaboration between ITU-T membership and
  utilities/Smart Grid community
  Collect and document information and concepts that
  would be helpful for developing Recommendations to
  support Smart Grid from an ICT perspective
Web site:

              FGSmart - Tasks

Tasks assigned to the Focus Group to meet this
objective include:
  update living list of standards bodies, forums, and consortia
  dealing with smart grid
  identify use cases of smart grid that can be used to derive
  communication network requirements
  analyze communication networking requirement functions and
  capabilities to support smart grid
  provide terminology/taxonomy necessary to support Smart Grid
  suggest future ITU-T study items and related actions
The complete terms of reference can be found at:

          FGSmart - Output

Concluded in 12/2011, FGSmart produced
five documents:
  Use Cases for Smart Grid
  Requirements of communication for Smart Grid
  Smart Grid Architecture
  Smart Grid Overview

Documents are available at

       Joint Coordination Activity on
      Smart Grid and Home Networking
  Successor mechanism after the FG on Smart Grid
  Created in January 2012
  The scope is the coordination of standardization
  work concerning all network aspects of Smart Grid
  and Home Networking
  Details available at:

      Title              Name
      Convener           Mr Richard Stuart (Lantiq, Germany)
      Co-convener        Mr Les Brown (Lantiq, Germany)
      Co-convener        Mr Stefano Galli (ASSIA, USA)
      ITU Secretariat    Mr Hiroshi Ota
      ITU Assistant      Ms Emmanuelle Labare                  13
New Q4c/15 Rapporteur Group
Officially formed in January 2012, but
work initiated earlier in Q4
  Physical layer, data link layer, network layer,
  and transport layer communications protocols
  in support of smart grid applications
  Communications architecture in support of
  Smart Grid applications
  Communications requirements in support of
  Smart Grid applications
Current projects:
  Short range wireless                          14
Introduction to ITU
ITU and Smart Grid
ITU’s family of PLC recommendations
ITU cooperation with other SDOs

ITU-T family of PLC Recommendations
    G.9960/61               G.9960/61:
    2-100 MHz
                            Multiple media, bit rates of hundreds
                            Mb/s to 1Gb/s; MIMO for PLC; BB
                            networking & entertainment

                            G.9960/61 LCP:
                            Reduced bit rate (5-20 Mb/s),
     G.9960/61              complexity, and power consumption
    ( LCP)
     2-25 MHz               G.9955/56 - NB PLC family:
                            Bit rates up to 1 Mb/s, high
                            robustness; low complexity and
     G.9955/56              power consumption
     9-490 kHz
                    cost                                   16
            NB-PLC Recommendations
•   ITU has given final approval to a family of next generation
    OFDM-based NB-PLC international standards:
    o    Rec. G.9955 (PHY) approved in 12/2011
    o    Rec. G.9956 (DLL) approved in 11/2011

•   Low complexity OFDM-based NB-PLC technology optimized
    for Smart Grid and home automation, addresses both access
    (low/medium voltage distribution lines) and in-home
    applications at frequencies below 500 kHz
•   G.9955 and G.9956 contain the specifications of three
    separate and self-contained NB-PLC standards:
    1.   G.hnem: a new NB-PLC technology developed by ITU-T in cooperation
         with members of the G3-PLC and PRIME Alliances;
    2.   G3-PLC: an established and field-proven NB-PLC technology contributed
         by members of the G3-PLC Alliance
    3.   PRIME: an established and field-proven NB-PLC technology contributed
         by members of the PRIME Alliance

    See also ITU Press Release, Dec. 2011
    M16.aspx suite of BB-PLC Recs
Best-in-class home networking performance (up to
1 Gbps) supporting all types of inside wiring:
  Powerline, Coax, Phoneline, CAT 5
Best-in-class ElectroMagnetic Compatibility (EMC)
control tools (in cooperation with ITU-R experts)
  PSD limit and shaping, fixed & dynamic frequency notching
  Necessary tools to meet the ucoming CENELEC prEN
  50561-1 requirements
  Dynamic power control minimizes transmitted power Recommendations:
  G.9960   Physical layer (support of relay nodes)
  G.9961   Data link layer (supports full QoS and multicast)
  G.9962   HN management (including BBF TR69 support)
  G.9963   MIMO (advanced performance)
  G.9964   HN power spectrum limits for EMC
  G.9972   coexistence with other broadband PLC systems 18
         G.9972 – BB-PLC coexistence 1/3
•   An in-home PLC network is not contained within the home
         •   PLC signals in neighboring apartments will interfere with each other
         •   The meter is not a gate, in many cases offers only a few dB of signal
             attenuation so that also in-home and utility PLC networks will interfere
•   Problem is worsened by:
         •   An increase in residence density, rural areas are less affected
         •   Cross-cable coupling in multiple dwelling units
         •   Penetration of PLC technology
         •   Usage of PLC spectrum is not regulated so that any PLC technology can
             use channel resources without having any legal obligation to protect
             other PLC technology from interference
•   The issue of mutual interference can hinder the success of PLC
    because of the availability of multiple non-interoperable PLC
    standards and a plethora of non-interoperable proprietary ones:
         •   Standards: IEEE 1901-FFT, IEEE 1901-Wavelet, G.996x (, IEC-
             ISO/IEC 12139-1
         •   Proprietary: HomePlug AV/Extended, HomePlug Green PHY, Panasonic
             HD-PLC, UPA Powermax, Gigle MediaXtreme, etc.
     G.9972 – BB-PLC coexistence 2/3
•   The solution to interference between non-interoperable PLC
    technologies is “coexistence” (CX), a resource sharing protocol
    that allows PLC technologies to share the medium
•   The Inter-System Protocol (ISP) is a BB-PLC CX scheme that
    allows CX of up to four simultaneously present technologies
     •   Included in the IEEE 1901 PHY/MAC standard
     •   Standardized as a stand-alone recommendation in ITU-T G.9972
     •   Compliance with G.9972 implies compliance with ISP in IEEE 1901
•   The ISP CX scheme in G.9972 can be used to ensure that:
     •   in-home, access, and Smart Grid SDO-based broadband PLC will
         coexist – it currently supports CX between IEEE 1901-FFT, IEEE
         1901-Wavelet, and and can be modified to include also IEC-
         ISO/IEC 12139-1
     •   the operation of Smart Grid and home networking devices can be
         decoupled and allowed to mature at their own obsolescence rate
     •   utilities and service providers can avoid resolving service issues
         caused by interference between non-interoperable PLC devices

    NB-PLC and BB-PLC coexistence 3/3
•   In one word, coexistence=“insurance that PLC will not stop working”
    due to interference created by neighboring non-interoperable devices
•   As a response to concerns that some vendors may not implement ISP
    in their products, SGIP PAP 15 made the strong recommendation to
    NIST that all broadband PLC technologies must implement ISP and
    also turn it on at all times
•   For the success of CX it is necessary to have the availability of an
    international and stand alone standard, and G.9972 ensures this
•   Further work in PAP 15 is being done to harmonize the various NB-PLC
    technologies. Three CX mechanism are specified in G.9955:
     •   Frequency division (FD) CX mechanism - allows suppressing interference
         from G.9955 into a particular frequency band or bands by using non-
         overlapping G.9955 bandplans;
     •   Frequency notching CX mechanism – shall be used to suppress interference
         from G.9955 into a particular (relatively narrow) frequency range by
         notching out one or more subcarriers;
     •   Preamble-based CX mechanism – shall be used by G.9955 to fairly share
         the medium with other types of PLC technologies operating over the same
         frequency band (and utilizing this coexistence mechanism). The definition of
         this coexistence mechanism is for further study.
Introduction to ITU
ITU and Smart Grid
ITU’s family of PLC recommendations
ITU cooperation with other SDOs

             Smart Grid
      A Driver for Convergence
The “union” between the Communications and Power
industries is still unconsummated, but it will happen
as building a new ICT infrastructure is very costly
Telecom industry and service providers have a very
important role in the smart grid
  Cloud based hosted energy service providers will reach the
  home also via existing broadband access technologies
  Broadband access can have a role in demand side
Another driver for convergence is that Smart Grid
does not end at the meter but it enters the home.
  Many aspects of the Smart Grid are directly related to the
  availability of a home networking and consumer participation
  is key in demand side management programs
  This will also shape the future of the Consumer Electronics
  industry through new energy efficiency standards
  Importance of Global Standards
          in Smart Grid
The power grid often crosses international or
jurisdictional boundaries, but applications
and devices must interoperate regardless of
those boundaries
The Telecom/Power/CE convergence for the
Smart Grid will drive a new echo-system of
products and this must happen under the
auspices of International SDOs
ITU-T can have a major role in facilitating the
convergence of the communications, power,
and CE worlds
Cooperation between the major International
SDOs is key to success!
 IEC and ITU intensify cooperation
Global coordination on Smart Grid is taking place
in IEC Strategic Group 3
  IEC SG 3 comprises expertise from all activities in IEC
  ITU-T has full representation and participation in SG3
PC118: Smart Grid User Interface
  Created in Nov. 2011
  Scope: Standardization of information exchange for
  demand response and connecting demand side
  equipment/systems into the smart grid
  ITU-T proposal for coordinating and contributing ICT
  related aspects has been approved
Cooperation via ITU-T Joint Coordination Activity on
Smart Grid and Home Networking (JCA SG&HN)
    Thank you!

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