CJEE

Chinese Journal of Electrical Engineering ›› 2021, Vol. 7 ›› Issue (4): 93-106.doi: 10.23919/CJEE.2021.000040

• Special Issue Papers • Previous Articles    

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Integrated Railway Smart Grid Architecture Based on Energy Routers*

Peng Yao1,2,*, Hao Wang3, Yijun Liu3, Jinping Niu3, Zhiwei Zhu1,2, Lin Lin1,2   

  1. 1. Zhuhai Wanlida Electrical Automation Co., Ltd., Zhuhai 519085, China;
    2. Guangdong Province Voltage Sag Engineering Technology Research Center of Enterprise Power Supply & Distribution System, Zhuhai 519085, China;
    3. China Railway First Survey and Design Institute Group Co., Ltd., Xi'an 710043, China
  • Received:2020-08-22 Revised:2020-11-12 Accepted:2021-03-22 Online:2021-12-25 Published:2022-01-07
  • Contact: *E-mail: 353891290@qq.com
  • About author:Peng Yao received his B.S. degree in Electrical Engineering from the Hunan Institute of Engineering, Xiangtan, China, in 2010, and the M.S. degree in Control Engineering from Hunan University, Changsha, China, in 2014. He joined Zhuhai Wanlida Electrical Automation Co., Ltd. and Guangdong Province Voltage Sag Engineering Technology Research Center of Enterprise Power Supply & Distribution System as an engineer from 2014. His current research interests include power quality control and power electronics.
    Hao Wang received his B.S degree in Gansu University of Technology, Lanzhou, China, in 1993, the M.S. degree from Southwest Jiaotong University, Chengdu, China, in 2006. He works at China Railway First Survey and Design Institute Group Co., Ltd. as a professorate Senior Engineer. His current research interests include design of railway electric power.
    Yijun Liu received his B.S degree in Gansu University of Technology, Lanzhou, China, in 1993. He works at China Railway First Survey and Design Institute Group Co., Ltd. as a Senior Engineer. His current research interests include design of railway electric power.
    Jinping Niu received his B.S degree in Changsha Railway University, Changsha, China, in 1994. He works at China Railway First Survey and Design Institute Group Co., Ltd. as a professorate Senior Engineer. His current research interests include design of railway electric power.
    Zhiwei Zhu received his B.S degree in Luoyang Institute of Technology, Luoyang, China, in 1998. He works at Zhuhai Wanlida Electrical Automation Co., Ltd. as the leader of research center. His current research interests include energy-saving technology.
    Lin Lin received B.S degree in Zhengzhou University, Zhengzhou, China, in 2004. He works at Zhuhai Wanlida Electrical Automation Co., Ltd. as an Engineer. His current research interests include energy- saving technology.
  • Supported by:
    *Zhuhai City Industry-University-Research Project (ZH22017001200019PWC).

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Abstract: Railway power system is an inseparable part of the power system, therefore, the intelligent architecture of the railway power system should also be focused on. The unique power supply characteristics of the railway power system are analyzed and integrated railway smart grid architecture based on energy routers is proposed. Importantly, three corresponding resilient mode control methods are suggested for the proposed architecture. In the fourth section, a simulation model corresponding to the resilient control mode is built and the simulation results prove the feasibility of the proposed control mode. Equally, for the novel network-connected backbone router (NCBR), a 1 000 kVA, 27.5/10 kV NCBR engineering prototype is used to prove its effectiveness in practical applications. Finally, a differentiation analysis is given, followed by conclusions regarding the traditional power system and proposed system.

Key words: Railway traction power system, railway electric distribution system, integrated railway smart grid architecture, energy migration router, network-connected backbone router, engineering prototype