A DC traction power supply converter system with very low harmonics for railway vehicles

A multi-converter DC traction power supply converter system (DC-TPSCS) for railway vehicles is proposed, which has such merits as low harmonics, saving energy, high power factor and high flexibility. The Interleaved SVPWM (ISVPWM) and LCL-filter are adopted to reduce the harmonic current injected into the public Grid. The control scheme special for the proposed multi-converter is discussed, which is based on typical double-loop control in synchronous d-q frame. An experimental plant for DC-TPSCS is built in the laboratory. The analysis and results are verified by experiments.

[1]  Joachim Holtz.  Pulsewidth modulation-a survey , 1992, IEEE Trans. Ind. Electron..

[2]  Fred C. Lee,et al.  Modeling and control of parallel three-phase PWM boost rectifiers in PEBB-based DC distributed power systems , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[3]  Brendan Peter McGrath,et al.  An analytical technique for the determination of spectral components of multilevel carrier-based PWM methods , 2002, IEEE Trans. Ind. Electron..

[4]  Fred C. Lee,et al.  Interleaved PWM with discontinuous space-vector modulation , 1999 .

[5]  Ying-Tung Hsiao,et al.  Measurement and characterization of DC harmonics on the Taipei MRT system , 2003, 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003..

[6]  Wang Liqiao,et al.  Harmonic characteristic of sample time staggered space vector modulation for multi-modular or multilevel converters , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[7]  M. Liserre,et al.  Design and control of an LCL-filter based three-phase active rectifier , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[8]  Ying-Tung Hsiao,et al.  Measurement and characterization of harmonics on the Taipei MRT DC system , 2004 .

[9]  M. J. Worwood.  Developments in d.c. traction power supply rectifiers , 1998 .

[10]  D.O. Neacsu,et al.  Selection of the PWM algorithm for 3-phase interleaved converters , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[11]  Ye Zhongming,et al.  A study of current harmonics of electrical traction power supply system , 2000, 2000 IEEE 31st Annual Power Electronics Specialists Conference. Conference Proceedings (Cat. No.00CH37018).

[12]  H.R. Karshenas,et al.  Basic Criteria in Designing LCL Filters for Grid Connected Converters , 2006, 2006 IEEE International Symposium on Industrial Electronics.