Research on Electromagnetic Transient and Suppression Measures for Passing Neutral Section without Power Interruption of Electrified Railway
Wang Xiaojun1, Bi Chengjie2, Jin Cheng1, Yao Chao1
1. School of Electrical Engineering Beijing Jiao Tong Univercity Beijing 100044 China; 2. State Grid Beijing Fengtai Power Supply Company Beijing 100073 China
Abstract：There will be overvoltage and overcurrent when the train passes through the neutral section with the uninterrupted phase-separation passing system, which will have a negative impact on the electrical railway power supply system and the train. In this paper, based on the simulation data, the property of the over-voltage phenomena during different transient periods are studied and the impact of phase angle for the switching operation on the amplitude of the over-voltage is analyzed. This work also researched the impacts of the angle of the closing operation, the position of the phase separation, and the volume of the residual magnetic on the inrush current of the neutral section passing. Lastly, three optimization strategies and restraining measures for neutral section passing are proposed. After comparison, the suitable strategy is selected.
王小君, 毕成杰, 金程, 姚超. 电气化铁路不停电过分相电磁暂态及抑制措施研究[J]. 电工技术学报, 2021, 36(1): 191-202.
Wang Xiaojun, Bi Chengjie, Jin Cheng, Yao Chao. Research on Electromagnetic Transient and Suppression Measures for Passing Neutral Section without Power Interruption of Electrified Railway. Transactions of China Electrotechnical Society, 2021, 36(1): 191-202.
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2021, Vol. 36 
