Integration of a Railway Electromagnetic Interference Calculation Tool in ArcGIS

SNCF engineering

Integration of a railway electromagnetic interference calculation tool in ArcGIS.

08/11/201108/11/2011 1

Noël Haddad and Gaël Boussaert

SNCF Telecommunication Department, EMC service

ESRI EUROPEAN USER CONFERENCE – 10/27/2011 – MADRID, ESPAÑA

Table of contents

Introduction

Who is the SNCF/EMC team ?

EMC problematic within the railway system

Context

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Towards a customized Geographycal Information Software tool

Calculation principles

Before the GIS developed tool

After GIS developed tool

Table of content

The calculation plug-in: CARYN

Presentation

How does it works

Results

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Conclusion

Advantage to use GIS with customized tools

The future

Questions

Introduction (1): Who is the SNCF/EMC team ?

• Electro-Magnetic Compatibility (EMC) expertise and studies service part of the telecommunication department within the SNCF engine ering

• 30 years of experience and improvement to guarantee the EMC compatibility of the

railway system within its environment in all kind o f railway projects: High Speed Line

(TGV), urban networks, power supply systems, tramwa ys, international activities…

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• Engineering and research activities performed by a team of 8 engineers & PhD,

and thesis (first completed in 2010, second since 2011)

(TGV), urban networks, power supply systems, tramwa ys, international activities…

• Self-developed modelisation and calculation software s

Introduction (2): EMC problematic within the railwa y system

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• Vicinity of high voltage networks perturbating low current installations

• Constraints in terms of operation reliability and p eople safety

• Need to anticipate the interferences in order to op timise the costs of the infrastructure

Advantage of GIS tool (1): interference principle

I

Inductor

Induced

e

Train circulation , short-circuit, other current generation phenomenon …

Current circulation

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B

~V

Impedance of the circuit

e

D

L

Electromagnetic field

Induced voltage

Advantage of GIS tool (1) : geographical problemati c

railway

Public telephone branchs

08/11/201108/11/2011 7Case : Tours-Vierzon electrification project, june 2004

• Large distance network (dozens,hundred of kms)

• Multiple itineraries and ramifications

• Parallelism and electrical discontinuities dependin g of the installation’s configuration

Advantage of GIS tool (1): geographical problematic

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Need to take into account the relative position of the different circuits, with the right scaling, and to simplify t hem for calculation

Advantage of GIS tool (1): calculation principle

Induced

InducingInitial point

Projected point

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Induced

Inducingij

Projected point not part of the circuit => no influence d>dmax => no influence

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

Advantage of GIS tool (2)

illustration

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• Drawing without geographical informations

• Long and difficult task

• then use of calculation routines running on UNIX-ba sed computer

• Use of a GeoReferenced database of the SNCF network

• Numerical mapping support (IGN)

• Various possibilities of drawing and manipulation o ffered by GIS softwares like ArcGIS

Relative position between the different network: with GIS

Advantage of GIS tool (3)

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• Accurate/geolocalised/exhaustive mapping with real geographical informations

• Faster, easier and safer work, re-usable and more f lexible

• Use of a calculation customized plug-in tool based on the UNIX kernel

Advantage of GIS tool (3)Relative position between the different networks: with GIS

08/11/201108/11/2011 12Case : Gières-Montmélian electrification project, a pril 2011

Calculation plug-in : CARYN (1)Presentation

• Toolbar to add to the main window

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Set up button

Calculation plug-in : CARYN (1)

Call to electrical databases

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Input data

Output results

Evoluted dialog windows interacting with the ArcGis components

Plug-in Calculation : CARYN (1)

Polylines layers

Custom parameters

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Kind of results

Necessary input data

• Input data are Multi-Frequency : calculation by CAR YN possible for several frequencies in the case of induction on Telecom Networks (audible range o f perturbation is max. from 800 Hz to 3300 Hz)

• Input data provided by the electrical network opera tor or determined by our other calculation tools and then interpreted by CARYN and associated to each polyline

Perturbating current between two dispatching High-voltage stations

SNCF perturbating current due to the return tractio n current beetween train and substation)


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Induced line lenght in Km %

Ipe en A

Induced line lenght in Km

Operating phases : parametrization of the inducing polylineCalculation plug-in : CARYN (2)

08/11/201108/11/2011 17Case : Jonquières-Theziers High Voltage line projec t, sept 2009

Operating phases : inducing polyline circuit calculation



Operating phases : calculation parametrization of the induced polyline



Calculation plug-in : CARYN (2)Operating phases : results on the induced polyline


Calculation plug-in : CARYN (3)Operating phases: parametrization of the inducing polyline


Calculation plug-in : CARYN (3)Operating phases : inducing polyline circuit calculation


Calculation plug-in : CARYN (3)Operating phases : calculation parametrization of the induced polyline


Calculation plug-in : CARYN (3)Operating phases : calculation


Calculation plug-in : CARYN (3)Operating phases : results: visualisation on ArcGis

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• Export to MSOffice tools functionalities

Case : Gières-Montmélian electrification project, a pril 2011

CONCLUSION

Advantages of GIS+CARYN utilisation

• Ergonomic, accurate and exhaustive treatment with t he GIS functionalities

• Ability to use the GIS entity classes to perform cu stomized treatments ( like « surface » shapes to weight results by areas with parameters such as ear th resistivity, tunnels, urbanism… )

• Multi -frequency treatment, results validated by measureme nts on various circuits by the public

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CARYN’s evolution

• Taking into account more and more complexified netw orks, at increasing frequencies (XDSL, … )

• Statistical studies such as biological effects: usi ng 3D ?

• CARYN’s outputs approved by french rail manager, hi gh voltage lines operator and public telecoms operator through conventions as reliable mean of ex pertise for projects expertise ans costs

• Multi -frequency treatment, results validated by measureme nts on various circuits by the public telephone operator

CONCLUSION

Thank you for your attention

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Noël HADDAD

SNCF - Direction de l'IngénierieTelecommunications DepartmentElectroMagnetic Compatibility Service

6, Avenue François MITTERRAND93574 LA PLAINE SAINT DENIS

Phone : (+33) 1.41.62.07.09Email : [email protected]

Gaël BOUSSAERT




CONCLUSION

QUESTIONS

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Noël HADDAD




Gaël BOUSSAERT





Office tools export: calculation log file

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Cables beginning Cables ending

RESULTING VOLTAGE FOR THIS PARTICULAR LENGTH


Circuit fem max en cas de C/C (Volts)

fem max en régime permanent 50 Hz (Volts)

Tension longitudinale efficace (Volts)

Tension longitudinale psophométrée (Volts)

Tension transversale psophométrée abonnée (milliVolts)

Tension transversale psophométrée central (milliVolts)

Montreux-Château_Cunelieres (MXCD3) 0 0 0.00 0.00 0.00 0.00Montreux-Château_Autrage (MXCD4) 39 5 3.65 0.11 0.06 0.06

Office tools export: EMC results Excel file

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Montreux-Château_Autrage (MXCD4) 39 5 3.65 0.11 0.06 0.06Montreux-Château_Brebotte (MXCD5) 0 0 0.00 0.00 0.00 0.00Montreux-Château_Chauvannes-les-Grands (MXCD6) 0 0 0.00 0.00 0.00 0.00Belfort_Vézelois (O1D1) 16 2 0.94 0.02 0.01 0.01Belfort_FT1 (O1B1) 1 0 0.01 0.00 0.00 0.00Belfort_FT2 (O1C1) 0 0 0.01 0.00 0.00 0.00Montreux-Château_Eschêne (MXCD7) 49 6 5.59 0.17 0.09 0.09Montreux-Château_Riv-la-Suarcine (MXCD8) 0 0 0.00 0.00 0.00 0.00Belfort_Grand Bois (O1A1) 5 1 0.53 0.01 0.01 0.01Belfort_Meroux (O1E1) 32 4 2.45 0.04 0.02 0.02Montreux-Château_Foussemagne (MXCD1) 0 0 0.00 0.00 0.00 0.00Montreux-Château_Fontenelle (MXCD2) 60 7 6.90 0.74 0.44 0.55

Integration of a Railway Electromagnetic Interference Calculation Tool in ArcGIS

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