Research on Urban Rail Transit Flexible Traction Power Systems and Optimal Control
Zhang Gang1,2, Hao Fengjie1,3, Wang Yunda1, Long Chiyu1, Li Menghe4
1. School of Electrical Engineering Beijing Jiaotong University Beijing 100044 China; 2. Beijing Engineering Research Center of Electric Rail Transportation Beijing 100044 China; 3. China Three Gorges Corporation Beijing 100038 China; 4. Nanning Rail Transit Corporation Nanning 530029 China
Abstract：In order to solve the problems of the traditional traction power supply system, such as the insufficient utilization of the regenerative energy of trains, the large fluctuation of DC power supply, the low power factor of AC network, a flexible traction power supply system scheme with the introduction of bidirectional converter is proposed. This paper introduces several typical working modes of flexible traction power supply system and the realization scheme of bidirectional substation. The key technologies such as bidirectional converter modeling, DC characteristic optimization and decentralized reactive compensation are studied. The hierarchical control structure of flexible power supply system is proposed to realize the flexible control of AC-DC hybrid system. The simulation model of urban rail flexible power supply system is established, and the system function and performance under typical application scenarios are verified, and the comprehensive optimization of the system is realized.
张钢, 郝峰杰, 王运达, 龙赤宇, 李梦和. 城轨柔性牵引供电系统及优化控制研究[J]. 电工技术学报, 2022, 37(zk1): 153-162.
Zhang Gang, Hao Fengjie, Wang Yunda, Long Chiyu, Li Menghe. Research on Urban Rail Transit Flexible Traction Power Systems and Optimal Control. Transactions of China Electrotechnical Society, 2022, 37(zk1): 153-162.
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2022, Vol. 37 
