Power Electronic Traction Transformer-Low Voltage Prototype

Recently, a world's first ever power electronic traction transformer (PETT) for 15 kV, 16 2/3Hz railway grid, has been newly developed, commissioned, and installed on the locomotive, where it is presently in use. This marks an important milestone in the traction world. The design and development of the PETT are described in this paper, where a low-voltage (LV) PETT prototype is presented. It has been designed for the purposes of control hardware and software commissioning, thus serving a role of an analogue simulator. In this paper, emphasis is placed on the overall system requirements, from where control system has been developed, implemented, and successfully commissioned. The development of a 1.2MVA medium-voltage PETT prototype will be reported separately in accompanying paper.

[1]  Alfred Rufer,et al.  Configurable front-end converters for multicurrent locomotives operated on 16 2/3 Hz AC and 3 kV DC systems , 2003 .

[2]  F. Canales,et al.  Traction Transformation a Power-electronic Traction Transformer (pett) , 2022 .

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

[4]  Holger Hoffmann,et al.  Medium frequency transformer in resonant switching dc/dc-converters for railway applications , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.

[5]  Jih-Sheng Lai,et al.  Multilevel intelligent universal transformer for medium voltage applications , 2005, Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005..

[6]  D. Dujic,et al.  Power electronic transformer (PET) converter: Design of a 1.2MW demonstrator for traction applications , 2012, International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion.

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

[8]  J Casarin,et al.  AC/DC converter with medium frequency link for railway traction application. Evaluation of semiconductor losses and operating limits. , 2010, SPEEDAM 2010.

[9]  R Beiranvand,et al.  Optimizing the Normalized Dead-Time and Maximum Switching Frequency of a Wide-Adjustable-Range LLC Resonant Converter , 2011, IEEE Transactions on Power Electronics.

[10]  B Piepenbreier,et al.  High voltage IGBTs and medium frequency transformer in DC-DC converters for railway applications , 2010, SPEEDAM 2010.

[11]  M Mermet-Guyennet.  New power technologies for traction drives , 2010, SPEEDAM 2010.

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

[13]  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.

[14]  Drazen Dujic,et al.  Laboratory scale prototype of a power electronic transformer for traction applications , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.

[15]  Gun-Woo Moon,et al.  Analysis and Design of a Three-Level LLC Series Resonant Converter for High- and Wide-Input-Voltage Applications , 2012, IEEE Transactions on Power Electronics.

[16]  P. Ladoux,et al.  Medium frequency transformer for railway traction: Soft switching converter with high voltage semi-conductors , 2008, 2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion.

[17]  B. Rashidian,et al.  Optimizing the LLC–LC Resonant Converter Topology for Wide-Output-Voltage and Wide-Output-Load Applications , 2011, IEEE Transactions on Power Electronics.

[18]  Drazen Dujic,et al.  Soft switching characterization of a 6.5kV IGBT for high power LLC resonant DC-DC converter , 2012 .

[19]  L. Heinemann,et al.  An actively cooled high power, high frequency transformer with high insulation capability , 2002, APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335).

[20]  L. Heinemann,et al.  The universal power electronics based distribution transformer, an unified approach , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[21]  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.

[22]  J. Taufiq,et al.  Power Electronics Technologies for Railway Vehicles , 2007, 2007 Power Conversion Conference - Nagoya.

[23]  Massimo Bongiorno,et al.  Input-Admittance Calculation and Shaping for Controlled Voltage-Source Converters , 2007, IEEE Transactions on Industrial Electronics.

[24]  U. Drofenik,et al.  A 150kW Medium Frequency Transformer Optimized for Maximum Power Density , 2012, 2012 7th International Conference on Integrated Power Electronics Systems (CIPS).

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

[26]  G. Ivensky,et al.  Approximate Analysis of Resonant LLC DC-DC Converter , 2011, IEEE Transactions on Power Electronics.

[27]  Katsuaki Saito,et al.  3 . 3 kV High Speed IGBT Module For Bi-directional and Medium Frequency Application , 2012 .

[28]  I. Batarseh,et al.  Operation Mode Analysis and Peak Gain Approximation of the LLC Resonant Converter , 2012, IEEE Transactions on Power Electronics.

[29]  Drazen Dujic,et al.  Experimental Characterization of LLC Resonant DC/DC Converter for Medium Voltage Applications , 2011 .

[30]  Hossein Iman-Eini,et al.  A modular power electronic transformer based on a cascaded H-bridge multilevel converter , 2009 .

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

[32]  Holger Hoffmann,et al.  High voltage IGBTs in medium frequency traction power supply , 2009, 2009 13th European Conference on Power Electronics and Applications.

[33]  E. Mollerstedt,et al.  Out of control because of harmonics-an analysis of the harmonic response of an inverter locomotive , 2000, IEEE Control Systems.

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

[35]  P. Ladoux,et al.  Evaluation of high voltage SiC diodes in a medium frequency AC/DC converter for railway traction , 2012, International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion.

[36]  Steffen Bernet,et al.  Characterization of a 6.5 kV / 500A IGBT module in a series resonant converter , 2011, 2011 IEEE Energy Conversion Congress and Exposition.