Power Flow Analysis of the Advanced Co-Phase Traction Power Supply System

Xiaoqiong He, Haijun Ren, Jingying Lin, Pengcheng Han, Yi Wang, Xu Peng and Zeliang Shu
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Xiaoqiong He: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Haijun Ren: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Jingying Lin: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Pengcheng Han: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Yi Wang: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China
Xu Peng: Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan 611756, China
Zeliang Shu: School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China

Energies, 2019, vol. 12, issue 4, 1-20

Abstract: The development of the traction power supply system (TPSS) is limited by the existence of the neutral section in the present system. The advanced co-phase traction power supply system (ACTPSS) can reduce the neutral section completely and becomes an important research and development direction of the railway. To ensure the stable operation of ACTPSS, it is necessary to carry out an appropriate power analysis. In this paper, the topology of advanced co-phase traction substation is mainly composed by the three-phase to single-phase cascaded converter. Then, the improved PQ decomposition algorithm is proposed to analyze the power flow. The impedance model of the traction network is calculated and established. The power flow analysis and calculation of the ACTPSS with different locations of locomotive are carried out, which theoretically illustrates that the system can maintain stable operation under various working conditions. The feasibility and operation stability of the ACTPSS are verified by the simulations and low power experiments.

Keywords: improved PQ algorithm; power flow analysis; three-phase to single-phase cascaded converter; ACTPSS (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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