西南交通大学学报2024，Vol.59Issue(6)：1245-1255,11.DOI:10.3969/j.issn.0258-2724.20220887
电气化铁路贯通供电系统穿越功率的治理措施
Crossing Power Governance Approach of Continuous Power Supply System in Electrified Railway
摘要
Abstract
A novel crossing power governance approach was proposed to mitigate the effects of crossing power in the traction power supply system while taking regenerative braking energy utilization into account.First,the power flow under different operating conditions was derived based on the structure of the continuous power supply system,and the method for detecting crossing power was analyzed.Second,a power transfer and energy storage unit was set using the single-phase combined co-phase traction substation,and the working mechanism of the improved system was analyzed.Then,a cooperative control strategy of crossing power governance was proposed by combining the upper control strategy of power distribution and negative sequence satisfactory compensation with the lower control strategy of converter control.Finally,the amount of crossing power was calculated using the experimental data of a railway line,and the cost-effectiveness of the governance measure was evaluated.In addition,the accuracy and efficacy of the proposed scheme were verified by simulation.The research results show that the proposed system and its control strategy can effectively mitigate the crossing power and regenerative braking energy,with the utilization rate of the crossing power of the power transfer and energy storage unit exceeding 70%in the case of traction substation and traction network loss.The system is highly economical and feasible.关键词
牵引供电/贯通供电/均衡电流/穿越功率/治理措施Key words
traction power supply/continuous power supply/equalizing current/crossing power/governance measure分类
交通工程引用本文复制引用
李群湛,彭友,黄小红,王翰林,任桃..电气化铁路贯通供电系统穿越功率的治理措施[J].西南交通大学学报,2024,59(6):1245-1255,11.基金项目
中国国家铁路集团有限公司科技研究开发计划(SY2020G001) （SY2020G001）
四川省科技计划(21YYJC3324,2022YFQ0104) （21YYJC3324,2022YFQ0104）
