Presentation on Esri European User Conference 2011 by Nöel Haddad and Gaël Boussaert from SNCF.

1. SNCF engineering
Integration of a railway electromagnetic
interference calculation tool in ArcGIS.
Noël Haddad and Gaël Boussaert
SNCF Telecommunication Department, EMC service
ESRI EUROPEAN USER CONFERENCE – 10/27/2011 – MADRID, ESPAÑA
08/11/2011 1

2. Table of contents
Introduction
Who is the SNCF/EMC team ?
EMC problematic within the railway system
Context
Towards a customized Geographycal Information Software tool
Calculation principles
Before the GIS developed tool
After GIS developed tool
08/11/2011 2

3. Table of content
The calculation plug-in: CARYN
Presentation
How does it works
Results
Conclusion
Advantage to use GIS with customized tools
The future
Questions
08/11/2011 3

4. Introduction (1): Who is the SNCF/EMC team ?
• Electro-Magnetic Compatibility (EMC) expertise and studies service part of the
telecommunication department within the SNCF engineering
• 30 years of experience and improvement to guarantee the EMC compatibility of the
railway system within its environment in all kind of railway projects: High Speed Line
(TGV), urban networks, power supply systems, tramways, international activities…
• Engineering and research activities performed by a team of 8 engineers & PhD,
and thesis (first completed in 2010, second since 2011)
• Self-developed modelisation and calculation softwares
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5. Introduction (2): EMC problematic within the railway system
• Vicinity of high voltage networks perturbating low current installations
• Constraints in terms of operation reliability and people safety
• Need to anticipate the interferences in order to optimise the costs of the infrastructure
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6. Advantage of GIS tool (1): interference principle
Current circulation
Train circulation , short-circuit, other
I current generation phenomenon …
Induced
Inductor
V ~ e Induced voltage
L
B
D Impedance of the circuit
Electromagnetic field
08/11/2011 6

7. Advantage of GIS tool (1) : geographical problematic
railway
Public telephone branchs
08/11/2011 Case : Tours-Vierzon electrification project, june 2004 7

8. Advantage of GIS tool (1): geographical problematic
• Large distance network (dozens,hundred of kms)
• Multiple itineraries and ramifications
• Parallelism and electrical discontinuities depending of the installation’s configuration
Need to take into account the relative position of the different
circuits, with the right scaling, and to simplify them for calculation
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9. Advantage of GIS tool (1): calculation principle
Initial point Inducing
Projected point
Induced
j
i Inducing
Projected point not part of the circuit
=> no influence d>dmax => no influence
Induced
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10. Advantage of GIS tool (2)
Relative position between the different networks : without GIS
• Use of a digitalizing table with optical pen
• Paper map support (IGN)
• Hand-made paper-based drawing
illustration
• Drawing without geographical informations
• Long and difficult task
• then use of calculation routines running on UNIX-based computer
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11. Advantage of GIS tool (3)
Relative position between the different network: with GIS
• Use of a GeoReferenced database of the SNCF network
• Numerical mapping support (IGN)
• Various possibilities of drawing and manipulation offered by GIS softwares like ArcGIS
• Accurate/geolocalised/exhaustive mapping with real geographical informations
• Faster, easier and safer work, re-usable and more flexible
• Use of a calculation customized plug-in tool based on the UNIX kernel
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12. Advantage of GIS tool (3)
Relative position between the different networks: with GIS
08/11/2011 Case : Gières-Montmélian electrification project, april 2011 12

13. Calculation plug-in : CARYN (1)
Presentation
• Toolbar to add to the main window
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14. Calculation plug-in : CARYN (1)
Set up button
Call to electrical databases
Input data
Output results
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15. Plug-in Calculation : CARYN (1)
Evoluted dialog windows interacting with the ArcGis components
Polylines layers
Custom
parameters
Kind of results
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16. Calculation plug-in : CARYN (1)
Necessary input data
• Input data provided by the electrical network operator or determined by our other calculation
tools and then interpreted by CARYN and associated to each polyline
• Input data are Multi-Frequency : calculation by CARYN possible for several frequencies in the case
of induction on Telecom Networks (audible range of perturbation is max. from 800 Hz to 3300 Hz)
Perturbating current between two dispatching High- SNCF perturbating current due to the return traction current
voltage stations beetween train and substation)
Ipe
en
A
Induced line lenght in Km % Induced line lenght in Km
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17. Calculation plug-in : CARYN (2)
Operating phases : parametrization of the inducing polyline
08/11/2011 Case : Jonquières-Theziers High Voltage line project, sept 2009 17

18. Calculation plug-in : CARYN (2)
Operating phases : inducing polyline circuit calculation
08/11/2011 Case : Jonquières-Theziers High Voltage line project, sept 2009 18

19. Calculation plug-in : CARYN (2)
Operating phases : calculation parametrization of the induced polyline
08/11/2011 Case : Jonquières-Theziers High Voltage line project, sept 2009 19

20. Calculation plug-in : CARYN (2)
Operating phases : results on the induced polyline
08/11/2011 Case : Jonquières-Theziers High Voltage line project, sept 2009 20

21. Calculation plug-in : CARYN (3)
Operating phases: parametrization of the inducing polyline
08/11/2011 Case : Gières-Montmélian electrification project, april 2011 21

22. Calculation plug-in : CARYN (3)
Operating phases : inducing polyline circuit calculation
08/11/2011 Case : Gières-Montmélian electrification project, april 2011 22

23. Calculation plug-in : CARYN (3)
Operating phases : calculation parametrization of the induced polyline
08/11/2011 Case : Gières-Montmélian electrification project, april 2011 23

24. Calculation plug-in : CARYN (3)
Operating phases : calculation
08/11/2011 Case : Gières-Montmélian electrification project, april 2011 24

25. Calculation plug-in : CARYN (3)
Operating phases : results: visualisation on ArcGis
• Export to MSOffice tools functionalities
08/11/2011 Case : Gières-Montmélian electrification project, april 2011 25

26. CONCLUSION
Advantages of GIS+CARYN utilisation
• Ergonomic, accurate and exhaustive treatment with the GIS functionalities
• Ability to use the GIS entity classes to perform customized treatments ( like « surface » shapes to
weight results by areas with parameters such as earth resistivity, tunnels, urbanism… )
• Multi-frequency treatment, results validated by measurements on various circuits by the public
telephone operator
• CARYN’s outputs approved by french rail manager, high voltage lines operator and public telecoms
operator through conventions as reliable mean of expertise for projects expertise ans costs
CARYN’s evolution
• Taking into account more and more complexified networks, at increasing frequencies (XDSL, … )
• Statistical studies such as biological effects: using 3D ?
08/11/2011 26

27. CONCLUSION
Thank you for your attention
Noël HADDAD Gaël BOUSSAERT
SNCF - Direction de l'Ingénierie SNCF - Direction de l'Ingénierie
Telecommunications Department Telecommunications Department
ElectroMagnetic Compatibility Service ElectroMagnetic Compatibility Service
6, Avenue François MITTERRAND 6, Avenue François MITTERRAND
93574 LA PLAINE SAINT DENIS 93574 LA PLAINE SAINT DENIS
Phone : (+33) 1.41.62.07.09 Phone : (+33) 1.41.62.48.38
Email : noel.haddad@sncf.fr Email : gael.boussaert@sncf.fr
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28. CONCLUSION
QUESTIONS
Noël HADDAD Gaël BOUSSAERT
SNCF - Direction de l'Ingénierie SNCF - Direction de l'Ingénierie
Telecommunications Department Telecommunications Department
ElectroMagnetic Compatibility Service ElectroMagnetic Compatibility Service
6, Avenue François MITTERRAND 6, Avenue François MITTERRAND
93574 LA PLAINE SAINT DENIS 93574 LA PLAINE SAINT DENIS
Phone : (+33) 1.41.62.07.09 Phone : (+33) 1.41.62.48.38
Email : noel.haddad@sncf.fr Email : gael.boussaert@sncf.fr
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29. Calculation plug-in : CARYN (4)
Office tools export: calculation log file
RESULTING VOLTAGE FOR
THIS PARTICULAR LENGTH
Cables beginning Cables ending
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30. Calculation plug-in : CARYN (4)
Office tools export: EMC results Excel file
Circuit fem max en fem max en Tension Tension Tension Tension
cas de C/C régime longitudinale longitudinale transversale transversale
(Volts) permanent 50 efficace psophométrée psophométrée psophométrée
Hz (Volts) (Volts) (Volts) abonnée central
(milliVolts) (milliVolts)
Montreux-Château_Cunelieres (MXCD3) 0 0 0.00 0.00 0.00 0.00
Montreux-Château_Autrage (MXCD4) 39 5 3.65 0.11 0.06 0.06
Montreux-Château_Brebotte (MXCD5) 0 0 0.00 0.00 0.00 0.00
Montreux-Château_Chauvannes-les-Grands (MXCD6) 0 0 0.00 0.00 0.00 0.00
Belfort_Vézelois (O1D1) 16 2 0.94 0.02 0.01 0.01
Belfort_FT1 (O1B1) 1 0 0.01 0.00 0.00 0.00
Belfort_FT2 (O1C1) 0 0 0.01 0.00 0.00 0.00
Montreux-Château_Eschêne (MXCD7) 49 6 5.59 0.17 0.09 0.09
Montreux-Château_Riv-la-Suarcine (MXCD8) 0 0 0.00 0.00 0.00 0.00
Belfort_Grand Bois (O1A1) 5 1 0.53 0.01 0.01 0.01
Belfort_Meroux (O1E1) 32 4 2.45 0.04 0.02 0.02
Montreux-Château_Foussemagne (MXCD1) 0 0 0.00 0.00 0.00 0.00
Montreux-Château_Fontenelle (MXCD2) 60 7 6.90 0.74 0.44 0.55
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