MVDC Railway Traction Power Systems; State-of-the Art, Opportunities, and Challenges

Advances in voltage-source converters (VSCs), as well as their successful application in VSC-HVDC systems, have motivated growing interests and research in medium-voltage direct current (MVDC) traction power systems (TPSs) for high-speed rail (HSR) applications. As an emerging power-converter-based infrastructure, this study reviewed developments that shape two key evolving pieces of equipment—namely, high-power traction substation (TSS) converters, and power electronic transformers (PETs)—for MVDC TPS as well as prospects for smart grid (SG) applications in the future. It can be deduced that cost-effective and robust high-power TSS converters are available from hybrid modular multilevel converters (MMCs) for enhanced performance and fault-tolerance capability. In addition, silicon carbide (SiC) MMC-based PETs with input-series-output-parallel (ISOP) configuration are present for greater weight/size reduction and efficiency for MVDC rolling stock design. Finally, the implementation of a smart MVDC TPS incorporating a sophisticated railway energy management system (REM-S) based on the smart grid principles is feasible in the future, with numerous benefits. However, there are related challenges, like knowledge gaps on these technologies, the high costs involved, and lack of standardization to overcome to realize widespread future commercial deployment.

[1]  Deepak Ronanki,et al.  Modular Multilevel Converters for Transportation Electrification: Challenges and Opportunities , 2018, IEEE Transactions on Transportation Electrification.

[2]  M. Steiner,et al.  Medium frequency topology in railway applications , 2007, 2007 European Conference on Power Electronics and Applications.

[3]  Fujin Deng,et al.  Overview on submodule topologies, modeling, modulation, control schemes, fault diagnosis, and tolerant control strategies of modular multilevel converters , 2020, Chinese Journal of Electrical Engineering.

[4]  A. Sannino,et al.  Feasibility of a DC network for commercial facilities , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[5]  Andreas Giannakis,et al.  MVDC Distribution Grids and Potential Applications: Future Trends and Protection Challenges , 2018, 2018 20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe).

[6]  J. W. Kolar,et al.  Optimized design of medium frequency transformers with high isolation requirements , 2010, IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society.

[7]  Javier Campillo,et al.  Review of Application of Energy Storage Devices in Railway Transportation , 2017 .

[8]  Alvaro Luna,et al.  DC Voltage Control and Power Sharing in Multiterminal DC Grids Based on Optimal DC Power Flow and Voltage-Droop Strategy , 2014, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[9]  Tao Jing,et al.  A Review of Voltage Source Converters for Energy Applications , 2018, 2018 International Ural Conference on Green Energy (UralCon).

[10]  Johann W. Kolar,et al.  Design and Experimental Analysis of a Medium-Frequency Transformer for Solid-State Transformer Applications , 2017, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[11]  Drazen Dujic,et al.  Power electronic traction transformer technology , 2012, Proceedings of The 7th International Power Electronics and Motion Control Conference.

[12]  Mike Barnes,et al.  A review of technologies for MVDC circuit breakers , 2016, IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society.

[13]  Lars Abrahamsson,et al.  Electrical railway power supply systems: Current situation and future trends , 2017 .

[14]  Remus Teodorescu,et al.  Design, Control, and Application of Modular Multilevel Converters for HVDC Transmission Systems , 2016 .

[15]  Drazen Dujic,et al.  Power Electronic Traction Transformer—Medium Voltage Prototype , 2014, IEEE Transactions on Industrial Electronics.

[16]  Zheng Zedong,et al.  DAB-based PET in MVDC traction and shipboard applications with distribution and redundant control , 2019 .

[17]  Herve Caron,et al.  Direct current – A future under which conditions? , 2016 .

[18]  Juan Manuel Mauricio,et al.  VSC-Based MVDC Railway Electrification System , 2014, IEEE Transactions on Power Delivery.

[19]  Sunghee Cho.  A study of smart grids for railways , 2018 .

[20]  Shuhei Nakata,et al.  3.3 kV/1500 A power modules for the world’s first all-SiC traction inverter , 2014 .

[21]  Antonello Monti,et al.  Railway System Energy Management Optimization Demonstrated at Offline and Online Case Studies , 2018, IEEE Transactions on Intelligent Transportation Systems.

[22]  Stefan Östlund,et al.  High-voltage DC-feeder solution for electric railways , 2012 .

[23]  P. Tricoli,et al.  Converter Topologies for MVDC Traction Transformers , 2020, 2020 IEEE 26th International Symposium for Design and Technology in Electronic Packaging (SIITME).

[24]  Venkata Dinavahi,et al.  Wideband Modeling of Power SiC mosfet Module and Conducted EMI Prediction of MVDC Railway Electrification System , 2020, IEEE Transactions on Electromagnetic Compatibility.

[25]  Zhiwei Wang,et al.  Modeling, control, and protection of modular multilevel converter-based multi-terminal HVDC systems: A review , 2017 .

[26]  Zhengyou He,et al.  Integration of PV and Battery Storage for Catenary Voltage Regulation and Stray Current Mitigation in MVDC Railways , 2021 .

[27]  Sudip K. Mazumder,et al.  Railway Electrical Smart Grids: An introduction to next-generation railway power systems and their operation. , 2014, IEEE Electrification Magazine.

[28]  Arne Hinz,et al.  MVDC Distribution Grids for Electric Vehicle Fast-Charging Infrastructure , 2018, 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia).

[29]  B. Bhargava.  Railway electrification systems and configurations , 1999, 1999 IEEE Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.99CH36364).

[30]  Mahdiyeh Khodaparastan,et al.  Recuperation of Regenerative Braking Energy in Electric Rail Transit Systems , 2018, IEEE Transactions on Intelligent Transportation Systems.

[31]  J. Balda,et al.  Loss comparison of selected core magnetic materials operating at medium and high frequencies and different excitation voltages , 2014, 2014 IEEE 5th International Symposium on Power Electronics for Distributed Generation Systems (PEDG).

[32]  Philippe Godignon,et al.  A Survey of Wide Bandgap Power Semiconductor Devices , 2014, IEEE Transactions on Power Electronics.

[33]  Alvaro Luna,et al.  Hierarchical Control of HV-MTDC Systems With Droop-Based Primary and OPF-Based Secondary , 2015, IEEE Transactions on Smart Grid.

[34]  Fei Wang,et al.  Characterization of Wide Bandgap Power Semiconductor Devices , 2018 .

[35]  Ai Xin,et al.  Multiterminal Medium Voltage DC Distribution Network Hierarchical Control , 2020 .

[36]  A. Steimel.  Under Europe's incompatible catenary voltages a review of multi-system traction technology , 2012, 2012 Electrical Systems for Aircraft, Railway and Ship Propulsion.

[37]  Vitaly Gelman.  Insulated-Gate Bipolar Transistor Rectifiers: Why They Are Not Used in Traction Power Substations , 2014, IEEE Vehicular Technology Magazine.

[38]  Maryam Saeedifard,et al.  Operation, Control, and Applications of the Modular Multilevel Converter: A Review , 2015, IEEE Transactions on Power Electronics.

[39]  Philippe Ladoux,et al.  Characterization and Implementation of Resonant Isolated DC/DC Converters for Future MVdc Railway Electrification Systems , 2020, IEEE Transactions on Transportation Electrification.

[40]  Antonello Monti,et al.  Railway Energy Management System: Centralized–Decentralized Automation Architecture , 2016, IEEE Transactions on Smart Grid.

[41]  Staffan Norrga,et al.  A primary-switched line-side converter using zero voltage switching , 2000 .

[42]  Deepak Ronanki,et al.  Topological Overview on Solid-state Transformer Traction Technology in High-speed Trains , 2018, 2018 IEEE Transportation Electrification Conference and Expo (ITEC).

[43]  Hitoshi Hayashiya,et al.  Necessity and possibility of smart grid technology application on railway power supply system , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.

[44]  David E. Grider,et al.  10 kV, 120 A SiC half H-bridge power MOSFET modules suitable for high frequency, medium voltage applications , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[45]  S. Ostlund,et al.  A concept for an HVDC traction system , 1989 .

[46]  David Grider,et al.  10 kV and 15 kV silicon carbide power MOSFETs for next-generation energy conversion and transmission systems , 2014, 2014 IEEE Energy Conversion Congress and Exposition (ECCE).

[47]  Dushan Boroyevich,et al.  DC fault current control of modular multilevel converter with SiC-based Power Electronics Building Blocks , 2017, 2017 IEEE Electric Ship Technologies Symposium (ESTS).

[48]  Salman AATIF,et al.  Adaptive droop control for better current-sharing in VSC-based MVDC railway electrification system , 2019 .

[49]  Mario Marchesoni,et al.  Solid-State Transformers in Locomotives Fed through AC Lines: A Review and Future Developments , 2019, Energies.

[50]  A. Sannino,et al.  Efficiency analysis of low- and medium- voltage DC distribution systems , 2004, IEEE Power Engineering Society General Meeting, 2004..

[51]  Dong Chen,et al.  Medium voltage solid state transformers based on 15 kV SiC MOSFET and JBS diode , 2016, IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society.

[52]  Fainan Hassan,et al.  The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability , 2014, IEEE Transactions on Power Delivery.

[53]  Juan C. Vasquez,et al.  DC Microgrids—Part I: A Review of Control Strategies and Stabilization Techniques , 2016, IEEE Transactions on Power Electronics.

[54]  Marco Liserre,et al.  Future MVDC Applications Using Modular Multilevel Converter , 2020, 2020 6th IEEE International Energy Conference (ENERGYCon).

[55]  Arne Hinz,et al.  Impact and opportunities of medium-voltage DC grids in urban railway systems , 2016, 2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe).

[56]  Z. Q. Zhu,et al.  Power Electronic Transformer-Based Railway Traction Systems: Challenges and Opportunities , 2017, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[57]  Antonello Monti,et al.  REM-S–Railway Energy Management in Real Rail Operation , 2019, IEEE Transactions on Vehicular Technology.

[58]  Hidenori SHIGEEDA,et al.  Feeding-loss Reduction by Higher-voltage DC Railway Feeding System with DC-to-DC Converter , 2018, 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia).

[59]  Philippe Ladoux,et al.  Future DC Railway Electrification System - Go for 9 kV , 2018, 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC).

[60]  Philippe Ladoux,et al.  New Medium-Voltage DC Railway Electrification System , 2018, IEEE Transactions on Transportation Electrification.

[61]  Clive Roberts,et al.  Railway smart grids: Drivers, benefits and challenges , 2018, Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit.

[62]  Johann W. Kolar,et al.  Solid-State Transformers: On the Origins and Evolution of Key Concepts , 2016, IEEE Industrial Electronics Magazine.

[63]  Stefan Östlund.  A primary switched converter system for traction applications , 1992 .

[64]  N. Schibli,et al.  A direct coupled 4-quadrant multilevel converter for 16 2/3 Hz traction systems , 1996 .

[65]  Massimo Bongiorno,et al.  Comparison of PI and PR current controllers applied on two-level VSC-HVDC transmission system , 2015, 2015 IEEE Eindhoven PowerTech.

[66]  Sujit Das,et al.  Wide bandgap semiconductor opportunities in power electronics , 2016, 2016 IEEE 4th Workshop on Wide Bandgap Power Devices and Applications (WiPDA).

[67]  M. Glinka,et al.  Prototype of multiphase modular-multilevel-converter with 2 MW power rating and 17-level-output-voltage , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[68]  Bassam Mohamed,et al.  A review of railway feeding infrastructures: Mathematical models for planning and operation , 2020 .

[69]  Yong Wang,et al.  Optimal Voltage Regulation and Power Sharing in Traction Power Systems With Reversible Converters , 2020, IEEE Transactions on Power Systems.

[70]  Richard J. Gran.  Numerical Computing with Simulink, Volume I: Creating Simulations , 2007 .

[71]  C. Wang,et al.  A Hybrid Modular Multilevel Converter (MMC) for MVDC Application , 2019, 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia).

[72]  N. Hugo,et al.  Power electronics traction transformer , 2007, 2007 European Conference on Power Electronics and Applications.

[73]  Fei Gao,et al.  An Improved Voltage Compensation Approach in a Droop-Controlled DC Power System for the More Electric Aircraft , 2016, IEEE Transactions on Power Electronics.

[74]  Ai Xin,et al.  Review of the DC voltage coordinated control strategies for multi-terminal VSC-MVDC distribution network , 2019 .

[75]  G. F. Reed,et al.  Design and simulation of a DC electric vehicle charging station connected to a MVDC infrastructure , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[76]  Deepak Ronanki,et al.  Evolution of Power Converter Topologies and Technical Considerations of Power Electronic Transformer-Based Rolling Stock Architectures , 2018, IEEE Transactions on Transportation Electrification.

[77]  Md. Hasanuzzaman,et al.  European smart grid prospects, policies, and challenges , 2017 .

[78]  Md. Mahfuzur Rahman,et al.  An Overview of Smart Grid Technology with its Present Situation and Anticipation in the Asian Region , 2014 .

[79]  H. Yoshizumi,et al.  Examination on application of a smart grid technology to stations , 2012, 2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC).

[80]  M. Pérez,et al.  Modular Multilevel Converters: Recent Achievements and Challenges , 2021, IEEE Open Journal of the Industrial Electronics Society.

[81]  Hamed Jafari Kaleybar,et al.  The Evolution of Railway Power Supply Systems Toward Smart Microgrids: The concept of the energy hub and integration of distributed energy resources , 2020, IEEE Electrification Magazine.

[82]  E. Agheb,et al.  Medium frequency high power transformers, state of art and challenges , 2012, 2012 International Conference on Renewable Energy Research and Applications (ICRERA).

[83]  D.J. Hammerstrom,et al.  AC Versus DC Distribution SystemsDid We Get it Right? , 2007, 2007 IEEE Power Engineering Society General Meeting.

[84]  Powering the world ’ s high-speed rail networks , 2011 .

[85]  Zhengyou He,et al.  An Improved Droop Control Strategy for VSC-Based MVDC Traction Power Supply System , 2018, IEEE Transactions on Industry Applications.

[86]  Hiroshi Watanabe,et al.  3.3 kV/1500 A Power Modules for the World’s First All-SiC Traction Inverter , 2014 .

[87]  Bin Wu,et al.  Modular Multilevel Converters: Analysis, Control, and Applications , 2018 .

[88]  T. Chow.  Wide bandgap semiconductor power devices for energy efficient systems , 2015, 2015 IEEE 3rd Workshop on Wide Bandgap Power Devices and Applications (WiPDA).

[89]  Takafumi Fukushima,et al.  Development of SiC Applied Traction System for Shinkansen High-speed Train , 2018, 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia).

[90]  Rik W. De Doncker,et al.  Medium-voltage DC distribution grids in urban areas , 2016, 2016 IEEE 7th International Symposium on Power Electronics for Distributed Generation Systems (PEDG).

[91]  Jiuping Pan,et al.  A New Protection Scheme for MMC-Based MVdc Distribution Systems With Complete Converter Fault Current Handling Capability , 2019, IEEE Transactions on Industry Applications.

[92]  Marc Petit,et al.  Smart micro-grid integration in DC railway systems , 2014, IEEE PES Innovative Smart Grid Technologies, Europe.

[93]  Michael Weiss,et al.  Design, implementation and performance of a modular power electronic transformer (PET) for railway application , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.

[94]  Lie Xu,et al.  A Hybrid Modular Multilevel Converter With Reduced Full-Bridge Submodules , 2020, IEEE Transactions on Power Delivery.

[95]  Johann W. Kolar,et al.  Applicability of Solid-State Transformers in Today’s and Future Distribution Grids , 2019, IEEE Transactions on Smart Grid.