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

HUANG Xiaohong; ZHAO Yi; LI Qunzhan; LIAO Qinyu; TANG Sida; WANG Xijun

doi:10.3969/j.issn.0258-2724.20181083

Volume 55 Issue 4

Jul. 2020

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Journal of Southwest Jiaotong University > 2020 > 55(4): 856-864.

HUANG Xiaohong, ZHAO Yi, LI Qunzhan, LIAO Qinyu, TANG Sida, WANG Xijun. Co-Phase Traction Power Supply and Energy Storage Technology for Electrified Railway[J]. Journal of Southwest Jiaotong University, 2020, 55(4): 856-864. doi: 10.3969/j.issn.0258-2724.20181083

Citation:

HUANG Xiaohong, ZHAO Yi, LI Qunzhan, LIAO Qinyu, TANG Sida, WANG Xijun. Co-Phase Traction Power Supply and Energy Storage Technology for Electrified Railway[J]. Journal of Southwest Jiaotong University, 2020, 55(4): 856-864. doi: 10.3969/j.issn.0258-2724.20181083

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

doi: 10.3969/j.issn.0258-2724.20181083

Received Date: 19 Dec 2018
Rev Recd Date: 01 Sep 2019

Available Online: 18 Mar 2020

Publish Date: 01 Aug 2020

Abstract

Abstract

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%.
- co-phase traction power supply,
- energy storage technology,
- peak load shifting,
- voltage unbalance,
- regenerative braking energy utilization,
- flywheel

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References(19)

References

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