Conférence TechnoArk 2016 - eEnergy transition - L'intelligence logicielle au service de la transition énergétique.

1. Conférence TechnoArk 2016
Energy efficiency with
adaptive control ADL
Philipp Keiser
Sierre, 29.01.2016

2. SBB's energy
strategy.

3. 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

4. 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.

5. 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 servicesEngineering
Development of
services

6. Adaptive control
(ADL).

7. 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.

8.  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.

9. 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 A–B 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

10. Energy demand for a stop.
SBB • Infrastructure • Energy Management • 2016 10
EnergydemandinkWh.
Speed in km/h.

11. The link between dispatchers and train
drivers.
SBB • Infrastructure • Energy Management • 2016 11

12. 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-P
LEA2 / LEA3
Adaptive control
- Calculates the optimum speed profile
- Sends driving recommendations to the
train driver
Data
SMS
Data
12

13. approx. 2 sec.
Conflict point
Conflict detection RCS
Double-check
the forecast
Speed advisory
Train speed profile (static)
Free run
message
Avoiding conflicts.
SBB • Infrastructure • Energy Management • 2016 13

14. 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
Train
50232
SBB • Infrastructure • Energy Management • 2016 14

15. 42 GWh: Wil, St. Gallen
Energy saved in 2015.
SBB • Infrastructure • Energy Management • 2016 15

16. Watt d’Or 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."
Road
Households
Industry
Service
sector
SBB • Infrastructure • Energy Management • 2016 16

17. Thank you for your attention.