Research on Beatless Control in Traction Drives

  • Yizhou Chen
  • Ruichang Qiu
  • Kan Dong
  • Lijun Diao
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 287)


The DC-link voltage contains a ripple component with a twice power line frequency while the major traction system in high-speed EMU is operating. And this leads to beat phenomenon. In this paper, the model following the traction system is established and the origin of beat phenomenon effect is analyzed in detail. The causes of the influence on torque and current by the secondary voltage ripple are explored through the analysis of working mechanism while the system is operating. Then, a beatless control scheme based on the frequency modulation and vector control is discussed in detail to eliminate voltage ripple in traction control. The hardware secondary resonant circuit will be canceled to realize the lightweight and low cost. Simulation and experimental results on MATLAB/Simulink confirm the effectiveness and validity of the adopted scheme.


Fluctuating DC link Beat phenomenon Beatless control Vector control 



This work was supported in part by the National Natural Science Foundation of China under Grant U1134204. We would like to thank the anonymous reviewers for their comments and suggestions.


  1. 1.
    Salam Z, Goodman C (1996) Compensation of fluctuating DC link voltage for traction inverter drive. In: IEEE sixth international conference on power electronics and variable speed drivesGoogle Scholar
  2. 2.
    Song W, Smedley K, Feng X, Sun P (2010) One-cycle control of induction machine traction drive for high speed railway Part I: multi-pulse width modulation. In: 36th annual conference of the IEEE industrial electronics society, GlendaleGoogle Scholar
  3. 3.
    Song W, Smedley K, Feng X (2011) One-cycle control of induction machine traction drive for high speed railway Part II: square wave modulation region. In: 26th annual IEEE applied power electronics conference and exposition, Fort WorthGoogle Scholar
  4. 4.
    Xinglai GE, Xiaoyun F (2010) Research on beat less control technology in three level inverter. J China Railway Soc 32(6):125–130 (in Chinese)Google Scholar
  5. 5.
    Ouyang H, Zhang K, Zhang P, Kang Y, Xiong J (2011) Repetitive prediction of fluctuating DC link voltage for traction drives. Trans China Electrotech Society 26(8):14–23 (in Chinese)Google Scholar
  6. 6.
    Sanbo P, Zongxinag C, Junmin P (2007) A novel SVPWM method for DC rail resonant inverter. Proc CSEE 27(1):65–69 (in Chinese)Google Scholar
  7. 7.
    Song W (2008) Control and modulation algorithm of railway electrical traction converter. Southwest Jiaotong University (in Chinese)Google Scholar
  8. 8.
    Liu Y, Shang J (2011) Control of induction motor with DC-link voltage ripple for high speed train applications. In: 2011 international conference on electrical machines and systems (in Chinese)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Yizhou Chen
    • 1
  • Ruichang Qiu
    • 1
  • Kan Dong
    • 1
  • Lijun Diao
    • 1
  1. 1.School of Electrical EngineeringBeijing Jiaotong UniversityBeijingChina

Personalised recommendations