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Gul, B.T., Rehman, A., Sherazi, H.I., Alburidy, A., Alsafrani, A. and Alrumayh, O. (2025) Optimal Control Strategy for Electric Vehicle Powered by PV Arrays and Battery Using Sliding Mode Control and Linear Quadratic Regulator. Scientific Reports, 15, Article No. 45044.
https://doi.org/10.1038/s41598-025-30545-w

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• TITLE: Topology Selection and Control Research on External Power Box of Export EMU

  AUTHORS: Fengbing Jiang, Xueming Li, Zhenxing Deng, Zhibo Chen

  KEYWORDS: External Power Supply, Main Circuit, Parameter Selection, Voltage Fluctuation, Control and Protection

  JOURNAL NAME: Journal of Transportation Technologies, Vol.16 No.3, June 18, 2026

  ABSTRACT: To meet the requirement that an export Electric Multiple Units (EMUs) be compatible with both AC 1500 V/50 Hz and AC 1000 V/16.7 Hz external power supplies, the external power supply system was designed and optimized. Firstly, several main circuit topologies for the external power supply system are proposed, and the technical characteristics, advantages, and disadvantages of each are analyzed. Subsequently, an improved combined external power supply scheme with significant advantages in size and cost was investigated. Key parameter selection was carried out, and the inductance design under extreme conditions, such as supply voltage fluctuations, was analyzed. In addition, the corresponding control and protection strategies were proposed. Finally, Simulation results verified the feasibility and correctness of the proposed scheme. The research ideas and methods can guide the design of the external power supply system for export EMUs.