The Control Strategy Research of Hybrid EMU Energy Storage System

  • Wenhui He
  • Xiaoguang Jia
  • Zheming Jin
  • Lijun Diao
  • Zhigang Liu
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 287)


Because of its environmentally friendly, highly efficient, and multifunctional, the new hybrid EMU will have a broad space for development. Hybrid EMU ESS links lithium battery and intermediate DC bus together, bidirectional energy flow, its load is nonlinear, time-varying, and other characteristics. This work establishes the equivalent small-signal model of ESS based on the Thevenin equivalent circuit model of the power lithium battery. On this basis, choose a right charge and discharge control strategy according to the complicated working condition of the hybrid EMU ESS, and the voltage and current double-closed-loop controller is designed. The simulation shows that the system controller is robust and suitable for the complex working condition application of the ESS.


Hybrid EMU Energy storage system (ESS) Lithium battery Small-signal model Double-loop control 



This work was supported in part by the China National Science and Technology Support Program under Grant (2013BAG21QB00) and the National Natural Science Foundation of China under Grant (U1134204).


  1. 1.
    Wang X, Shao CC, Wang X et al (2013) Survey of electric vehicle charging load and dispatch control strategies. Proc CSEE 33(1):1–10 (in Chinese)MATHGoogle Scholar
  2. 2.
    Niu L (2008) Key techniques research of pure electric bus charging system. Beijing Jiaotong University, Beijing (in Chinese)Google Scholar
  3. 3.
    Ge W, Huang M, Zhang W (2013) Economic operation analysis of the electric vehicle charging station. Trans Chin Electrotechnical Soc 28(2):15–21 (in Chinese)MathSciNetGoogle Scholar
  4. 4.
    Buller S, Thele M, De Doncker RWA (2005) Impedance-based simulation models of supercapacitors and Li–ion batteries for power electronic applications. IEEE Trans Ind Appl 41(3):742–747Google Scholar
  5. 5.
    Li J, Jiang J (2013) Battery electric vehicles charger model. Electr Mach Control 17(4):64–71 (in Chinese)Google Scholar
  6. 6.
    Shi W, Jiang J, Li S et al (2010) Research on SOC estimation for LiFePO4 Li–ion batteries. J Electr Meas Instrum 24(8):769–774 (in Chinese)CrossRefGoogle Scholar
  7. 7.
    Hu G, Duan S, Cai T et al (2012) Control performance analysis of Lithium-ion battery charger based on model parameter fitting. Trans Chin Electrotechnical Soc 27(2):146–152 (in Chinese)Google Scholar
  8. 8.
    Xuhui Z, Wen X, Feng Z, et al (2011) A new control strategy for bi-directional DC–DC converter in electric vehicle. 2011 International conference on electrical machines and systems, Beijing, pp 1–4Google Scholar
  9. 9.
    Zhou X (2011) Design and control of bi-directional grid-interactive converter for plug-in hybrid electric vehicle applications. North Carolina State University, RaleighGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Wenhui He
    • 1
  • Xiaoguang Jia
    • 1
  • Zheming Jin
    • 1
  • Lijun Diao
    • 1
  • Zhigang Liu
    • 1
  1. 1.School of Electrical EngineeringBeijing Jiaotong UniversityHai DianChina

Personalised recommendations