Multi-conductor Train Simulations for Electrification System Design, Implement, Application Michael Chen, Roger White, Tony Fella Atkins Rail Stuart Hillmansen, Paul Weston University of Birmingham
Contents Introduction KTP/University of Birmingham/Atkins Electrified railways and Issues Aims and objectives MTS design, implementation and application MTS capabilities Object oriented system design Validation Applications of MTS Conclusion and Future Development Simple Graphic user interface Modelling Convertor 2
Background Original MTS From 1970 s to 1990 s, MTS developed and written in Fortran by University of Birmingham, used for research and studies. DC MTS From 2000 s, Atkins got involved in further developing MTS with DC energy consumption calculation DC&AC MTSAC From 2010 s, Atkins further developed MTS with detailed AC network modelling capability, and graphic user interface. It is funded by Atkins and Knowledge Transfer Partnership (KTP). 3
AC ( Classic) & DC Railways 400kV GRID Earth Wire Grid Site Feeder Station Overhead Contact System Train R Y B Busbar + 25kV 25 kv 50 Hz 3kV d.c. SGT1 Y-B 2 Track Traction Return System NORTH AC to DC DC to AC 66/132kV GRID Earth Wire Grid Site Sub Station Overhead Contact System Train R Y B 1000V 3 phase AC to DC 0.75/1.5/3 kv d.c. 2 Track Traction Return System NORTH DC to AC 4
AC Railways: typical feeding Feeder Station 2x18MVA Intermediate Track Sectioning Cabin Mid Point Track Sectioning Cabin Intermediate Track Sectioning Cabin Feeder Station 1x18MVA 132/25kV Transformer Circuit Breaker Normally Open Circuit Breaker Normally Closed Neutral Section Copyright Dr R D White 2002 5
AC Railway: Booster Transformer and RCs Booster Transformer Mid Point Connector Return Conductor Grid Site Sub Station Track Side Feeder Station Overhead line 400A Steel Work Railway Fencing Telecommunications Cables Earthed Screening Conductor Armour of Cables or Metal Pipes Copyright R.D.White 01/04 6
AC railways: AT feeding arrangement Grid Substation Double Winding Transformer Secondary 2x25 kv 400 kv 50Hz Autotransformer 2x 25kV 200A 210A Autotransformer 2x 25kV 300A 100A Autotransformer 2 x 25kV 10A Autotransformer 2 x 25kV 25kV Catenary and Contact Wire 400A 10A 90A 90A 10A Sub Station Earth mat 10A 20A 90A 200A 200A 90A 20A Return Earthed Bonded Running Rails 10A 200A 190A 100A 10A -25 kv Auxiliary Feeder Wire 7
DC Traction Feeding Arrangement 33/11kV Supply 33/11kV Supply Power Transformer Circuit Breaker Normally Closed Feeder Station Rectifier Unit Isolator Normally Open Insulated Overlap or Sectioning Gap 8
AC Railway - MTS Modelling and Design Twin track rail return
AC Railway - MTS Modelling and Design Twin track BT arrangement
AC Railway - MTS Modelling and Design Twin track AT arrangement
Electrified DC Railway Issues Protection for Civil Structures from Corrosion EN 50122-2 Railway Applications - Fixed Installations Electrical safety, earthing, and bonding- part 2 provisions against the effects of stray currents caused by d.c. traction systems; EN 50163 Protection against corrosion by stray current from direct current systems applications
Electrified AC&DC Railway Issues Protection for Humans Rail potentials Touch Accessible Potentials (AC&DC) EN 50122-1, IEC 62128-1 Railway applications Fixed installations Part 1: Protective provisions relating to electrical safety and earthing; EN 61140 Protection against electric shock Common aspects for installation and equipment Induced Voltages (AC) ITU-T Directive Vol VI Protection of telecommunications lines against harmful effects from electric power and electrified railway lines Danger, Damage and Disturbance. ITU-T Directive Vol II Protection of telecommunications lines against harmful effects from electric power and electrified railway lines; calculating induced voltage and currents in practical cases. HmagField MAGNETIC FIELD 25kV AUTOTRANS 6MW per circuit Roger D White WS Atkins Rail
Rolling Stock Issues Operational Requirements EN 50388 Railway applications. Power supply and rolling stock. Technical criteria for the coordination between power supply (substation) and rolling stock to achieve interoperability EN 50163 Railway applications Supply voltages of traction systems On Board Train Monitoring EN 50463-1 Railway Applications Energy measurement on board trains Part 1 General (GEL/9/X_11_0023 ) EN 50463-2 Railway Applications Energy measurement on board trains Part 2 Energy measuring (GEL/9/X_11_0024 ) EN 50463-3 Railway Applications Energy measurement on board trains Part 3 Data Handling (GEL/9/X_11_0025 ) EN 50463-4 Railway Applications Energy measurement on board trains Part 4 Communication (GEL/9/X_11_0026 ) EN 50463-5 Railway Applications Energy measurement on board trains Part 5 Conformity Assessment (GEL/9/X_11_0027 )
Aim and objectives To develop Multi Trains Simulation (MTS) for electrification system. The simulation involves: Trains Network Train movement network Signalling network Power network 15
Contents Introduction KTP/University of Birmingham/Atkins Electrified railways and Issues Aims and objectives MTS design, implementation and application MTS capabilities Object oriented system design Validation Applications of MTS Conclusion and Future Development Simple Graphic user interface Modelling Convertor 16
Power network modelling Rolling Stock Typical and future AC traction Regenerative, Braking, Coasting Single Train in lumped conductor model Multi trains in lumped conductor model (other simulators) Trains in semi-lumped conduct model(mts) Trains in multi-conduct model (MTS) Bonding arrangement BT arrangement AT arrangement 17
MTS Design Operational Selectable signalling systems and driving controllers; Optimisation of energy consumption, carbon reduction, coasting etc; Electrification System including regeneration, Post processing Energy consumption analysis including optimisation algorithms. System losses; Carbon Calculation of operating train timetable. Human safety; Rail and accessible potentials Induction and Magnetic Fields; Induced voltage calculation Stray current and total charge Output display GUI (graphic user interface)
Object Oriented Modelling Design Top down 19
Bottom Up Object Oriented Operational Implementation 20
AC Railway - MTS validation BT Arrangement AA AB BT1 BT2 BT3 AC T2 BA BB BT4 BT5 BT6 BC 0 1 1.6km 4.8km 8km 9.6km Settings: Rail Return + Booster Return Booster at 1.6km, 4.8km, 8km Rail-to-Rail bond spacing: 320m Cross bond spacing: 1220m 40 35 30 25 20 15 10 Roger RV Michael RV 5 0 0 2 4 6 8 10 12
AC Railway - MTS Application Modelling traction power system from Wolverton to Rugby A1 4 track rail return 2 track double ATs 2 track single AT 2 track rail return anf1 aat1 aat2 aat3 aaf1 aaf2 aat4 A2 A3 A4 anf2 A5 B1 bnf1 B2 B3 B4 B5 C1 D1 cnf1 dnf1 C2 D2 bat1 bat2 bat3 baf1 vs2 baf2 vs3 bat4 bnf2 132.6-133km vs4 vs1 82.632km 94.103km 101.369km 111.578km 118.336km 128.89km 134.85km Wolverton Patford Bridge Rugby 22
Loss [kw] Loss [%] Speed [kph] Power [kw] AC Railway- MTS Application 250 200 Train speed / line speed Line speed Train speed 8000 6000 Substation powers [kw] WLF1 LBF1 LBF2 RGF1 150 4000 100 50 2000 0 80 90 100 110 120 130 140 Chainage [km] 80 60 40 20 Loss [kw] 0 80 90 100 110 120 130 140 Chainage [km] 1 0.8 0.6 0.4 0.2 Loss [%] 0 80 90 100 110 120 130 140 Chainage [km] 0 80 90 100 110 120 130 140 23 Chainage [km]
MTS applications 2012 Induction Modelling for RR, Classic and AT arrangements Atkins Design House Power Efficiency Modelling of RR, Classic and AT Arrangements Atkins Internal design House Network Rail 24
Contents Introduction KTP/University of Birmingham/Atkins Electrified railways and Issues Aims and objectives MTS design, implementation and application MTS capabilities Object oriented system design Validation Applications of MTS Conclusion and Future Development Simple Graphic user interface Modelling Convertor 25
Conclusion and Future development MTS- Multi Train Simulator Multi-Conductor modelling energy computation analysis, rail potential, induced voltage, EMC issue etc. Object oriented design modelling update and development This work has been graded as an A outstanding KTP project by the Technology Strategy Board (TSB). Further Software development Simple GUI for instant 2/4 track electrified railway modelling and research. Infrastructure Converters Convert existing input files into MTS Format Electrification System Design for AC and DC systems 26
Thank You Michael Chen, Roger White, Tony Fella Atkins Rail Stuart Hillmansen, Paul Weston University of Birmingham