Co-Phase Traction Power Supply and Energy Storage Technology for Electrified Railway

被引：0
|
作者：
Huang X. [1 ]
Zhao Y. [1 ]
Li Q. [1 ]
Liao Q. [1 ]
Tang S. [1 ]
Wang X. [1 ]
机构：
[1] School of Electrical Engineering, Southwest Jiaotong University, Chengdu
来源：
Xinan Jiaotong Daxue Xuebao/Journal of Southwest Jiaotong University | 2020年 / 55卷 / 04期
关键词：
Co-phase traction power supply; Energy storage technology; Flywheel; Peak load shifting; Regenerative braking energy utilization; Voltage unbalance;
D O I：
10.3969/j.issn.0258-2724.20181083
中图分类号：
学科分类号：
摘要：
In order to further optimize the economical and energy-efficient operation of electrified railway traction substations, a new scheme integrated with co-phase traction power supply and energy storage technology is proposed. Based on train diagrams and historical data, and with the intent of load peak clipping, it can achieve the real-time control on the charging or discharging of energy storage devices. As a result, the power quality problems mainly due to negative sequence can be solved. Meanwhile, the equipment capacity and operation costs are less demanded, and the regenerative braking energy can be utilized effectively. By means of the measured data of the Beijing-Shanghai high-speed railway, the proposed method shows the capability of improving negative sequence. The simulation analysis and experimental verification are performed through the flywheel energy storage device. Finally, its economic performance is also analyzed. The results show that the integration of co-phase traction power supply and energy storage can eliminate the neutral sections by 50%, and the function of eliminating negative sequence depends on the power of the energy storage device. When the energy storage device power is 10% of the large value of 95% probability for traction load power, the negative sequence limit can be reduced by 10%. © 2020, Editorial Department of Journal of Southwest Jiaotong University. All right reserved.
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页码：856 / 864
页数：8
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