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  • Confrence TechnoArk 2016

    Energy efficiency with

    adaptive control ADL

    Philipp Keiser

    Sierre, 29.01.2016

  • SBB's energy

    strategy.

  • SBB Energy Strategy:Five strategic objectives.

    Upgrade hydropower

    plants.

    Optimise

    the network.

    Energy

    Efficiency.

    Procure

    renewable

    energy.

    1

    4 2

    5

    End investment

    in nuclear power

    plants.

    3

    SBB Infrastructure Energy Management 2016 3

  • Our installations and our challenges.

    SBB Infrastructure Energy Management 2016 4

    By 2030: The expansion of

    railway services will require

    25% more energy and even

    40% at peak times.

  • Energy-saving programme objectives and structure.

    Anchor energy efficiency in the company.

    Efficiency on the move:

    Target of 600 GWh/year from 2025.

    Create transparency and manage energy consumption.

    SBB Infrastructure Energy Management 2016 5

    Rail servicesEngineeringDevelopment of

    services

  • Adaptive control

    (ADL).

  • Initial position.

    SBB Infrastructure Energy Management 2016 7

    As demand is constantly increasing, SBB is reaching its limits in

    terms of network capacity and timetable stability.

    Train-path kilometres are expected to increase by 30% between

    now and 2030.

    The high level of integration between planning (scheduling) and

    implementation (the performance of our train drivers) improves

    precision in the production system. Despite the extra strain,

    timetable stability is increased.

  • Increased precision in production.

    Calculating energy-optimised and ergonomic journey lines.

    Supporting train drivers in their choice of driving strategy.

    Reduced energy consumption when driving.

    Reduction in avoidable stops at signals.

    Increasing the number of braking operations with electrical

    brakes.

    SBB AG Infrastructure ADL Project 22.04.2014

    Project goals.

  • Energy demand for a stop.

    0

    100

    50

    150

    A Bx

    Energy difference:

    100 km/h 0 km/h 100 km/h

    SBB Infrastructure Energy Management 2016 9

    Simplified schematic representation:

    A freight train (1,200 t) is travelling on route AB at the permitted

    speed of 100 km/h.

    Full stop at point x due to red signal:

    Energy needed for the conflict stop: 147 kWh

  • Energy demand for a stop.

    SBB Infrastructure Energy Management 2016 10

    En

    erg

    y d

    em

    an

    d i

    n k

    Wh

    .

    Speed in km/h.

  • The link between dispatchers and train

    drivers.SBB Infrastructure Energy Management 2016 11

  • ADL the link between dispatchers

    and train drivers.SBB Infrastructure Energy Management 2016

    Rail Control System (RCS)

    - Identifying occupation conflicts

    - Determining the order of trains

    - Identifying unplanned signal stops

    - Defining the optimisation corridor

    GSM-R

    GSM-PLEA2 / LEA3

    Adaptive control

    - Calculates the optimum speed profile

    - Sends driving recommendations to the

    train driver

    Data

    SMS

    Data

    12

  • approx. 2 sec.

    Conflict pointConflict detection RCS

    Double-check

    the forecast

    Speed advisory

    Train speed profile (static)

    Free run

    message

    Avoiding conflicts.

    SBB Infrastructure Energy Management 2016 13

  • Example of ADL optimisation

    Fast slow fast

    100

    100

    50

    522 50232 1822

    Vopt 50 km/hVopt 100 km/hVopt 100 km/h

    Freight train 50232 is optimised between 522 and 1822. Here, the system must prevent 50232

    from having to make an unplanned stop while ensuring that 1822 does not arrive late in Lenzburg.

    In order to solve this problem, ADL first calculates a high speed. As soon as 1822's arrival in

    Lenzburg is ensured, Vopt can be reduced to allow the train to continue on behind 522 without any

    conflicts.

    LenzburgAarau

    ADL ENDADL END

    Train50232

    SBB Infrastructure Energy Management 2016 14

  • 42 GWh: Wil, St. Gallen

    Energy saved in 2015.

    SBB Infrastructure Energy Management 2016 15

  • Watt dOr 2016:

    Energy-efficient mobility

    Traffic

    34%Air

    "The Watt d'Or 2016 in the

    category energy-efficient

    mobility goes to SBB for

    the innovative ADL system

    a system like no other in

    the world."

    RoadHouseholds

    Industry

    Service

    sector

    SBB Infrastructure Energy Management 2016 16

  • Thank you for your attention.

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