- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | LI Qunzhan, HUANG Xiaohong, WU Lei, FAN Hongjing. Direct Connection Schemes of Green Electricity and Power Flow Control Methods for Electrified Railways[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20260029
|
Deep integration of traction power supply systems in electrified railways and new energy is an important measure to implement the national “carbon peaking and carbon neutrality” goal and promote the green transformation of rail transit. In view of the demand for large-scale integration of new energy, combined with the national direct connection strategy of green electricity, a technical scheme for the direct connection of green electricity in traction power supply systems was proposed, and its power flow control strategy was studied. Firstly, different schemes for direct connection of green electricity were compared and analyzed, and it was clarified that through-feeding power supply with direct connection of green electricity was the optimal choice to achieve a win-win situation for power grids and railways. On this basis, by considering grid support strength and coupling degree, three architectures of grid-structured through-feeding power supply physical systems with direct connection of green electricity were constructed. Power supply zones were formed based on the demarcation of section posts, realizing the matching of generation, consumption, and energy storage within power supply zones. Secondly, control logics of green electricity devices and energy storage devices under grid-connected/islanded modes were established, and a regulation system driven by controller information flows to direct energy flows was constructed. Based on electrical quantity information of section posts, train operation states and traction load powers were identified, realizing real-time power balance and autonomous coordinated control of generation, storage, and consumption under grid-connected/islanded modes. Finally, taking an actual reconstructed line as an example, the effectiveness and economy of the scheme were verified. Research results indicate that the through-feeding power supply with direct connection of green electricity is conducive to large-scale integration of new energy along railways. Meanwhile, it can solve dual pain points of negative sequence of power grids and power interruption zones of neutral sections in traction networks, achieving the core goals of zero grid interference and zero operation interruption. Through segmented and partitioned power supply and autonomous coordinated control of power flows, energy autonomy, operation autonomy, and control autonomy of the system are realized within respective jurisdiction sections of traction substations and traction green electricity stations. Combined with line data for economic analysis, by adopting lithium iron phosphate battery energy storage devices and considering two operation scenarios of grid-connected and islanded modes, preliminary cost recovery periods are approximately 3.9 years and 7.2 years, respectively.
| [1] |
曹建猷. 电气化铁道供电系统[M]. 北京: 中国铁道出版社, 1983.
|
| [2] |
国家铁路局. 2024年铁道统计公报[R/OL]. (2025-06-06) [2026-01-18]. https://www.nra.gov.cn/xwzx/zlzx/ hytj/202506/P020250606511097164786.pdf.
|
| [3] |
国家铁路局. 推动铁路行业低碳发展实施方案[EB/OL]. (2024-02-18) [2026-01-18]. https://www.nra.gov.cn/xwzx/xwxx/xwlb/202402/P020240205519878673787.pdf.
|
| [4] |
中华人民共和国国家发展和改革委员会. 关于有序推动绿电直连发展有关事项的通知[EB/OL]. (2025-05-30) [2026-01-18]. https://www.ndrc.gov.cn/xwdt/tzgg/202505/t20250530_1398139.html.
|
| [5] |
李群湛, 黄小红, 吴波, 等. 电气化铁路绿电利用与零碳贯通供电技术[J/OL]. 西南交通大学学报, https://link.cnki.net/urlid/51.1277.u.20250517.1635.002.
|
| [6] |
陈冲, 贾利民, 赵天宇, 等. 去碳化导向的轨道交通与新能源融合发展: 形态模式、解决方案和使/赋能技术[J]. 电工技术学报, 2023, 38(12): 3321-3337.
CHEN Chong, JIA Limin, ZHAO Tianyu, et al. Decarbonization-oriented rail transportation and renewable energy integration development: configurations, solutions, and enabling/empowering technologies[J]. Transactions of China Electrotechnical Society, 2023, 38(12): 3321-3337.
|
| [7] |
杨健维, 冯素华, 郭惠斌, 等. 多变电所互联牵引供电系统光储容量优化配置[J]. 西南交通大学学报, 2025, 60(6): 1537-1549.
YANG Jianwei, FENG Suhua, GUO Huibin, et al. Optimal configuration of photovoltaic and hybrid energy storage system capacity in multi-substation interconnected traction power supply system[J]. Journal of Southwest Jiaotong University, 2025, 60(6): 1537-1549.
|
| [8] |
HUANG Y, HU H T, GE Y B, et al. Joint sizing optimization method of PVs, hybrid energy storage systems, and power flow controllers for flexible traction substations in electric railways[J]. IEEE Transactions on Sustainable Energy, 2024, 15(2): 1210-1223. doi: 10.1109/TSTE.2023.3331346
|
| [9] |
陈民武, 陈垠宇, 徐烈, 等. 基于机会约束的贯通式同相牵引供电系统分布式优化运行策略[J]. 中国电机工程学报, 2024, 44(24): 9583-9594.
CHEN Minwu, CHEN Yinyu, XU Lie, et al. Distributed optimal operation of continuous co-phase traction power system via chance-constraint[J]. Proceedings of the CSEE, 2024, 44(24): 9583-9594.
|
| [10] |
李俊豪, 涂春鸣, 王鑫, 等. 基于“规则 + 优化”的电气化铁路站点实时能量管控策略[J]. 电工技术学报, 2024, 39(11): 3339-3352.
LI Junhao, TU Chunming, WANG Xin, et al. Real-time energy management strategy for electrified railroad stations based on “rules + optimization”[J]. Transactions of China Electrotechnical Society, 2024, 39(11): 3339-3352.
|
| [11] |
国家标准化管理委员会. 轨道交通 牵引供电系统交流25 kV同相供电装置: GB/T 45658—2025[S]. 北京: 中国标准化出版社.
|
| [12] |
MOCHINAGA Y, HISAMIZU Y, TAKEDA M, et al. Static power conditioner using GTO converters for AC electric railway[C]//Conference Record of the Power Conversion Conference - Yokohama 1993. Yokohama: IEEE, 1993: 641-646.
|
| [13] |
徐奇伟, 付逸伦, 苗轶如, 等. 新型单相电流源型光伏并网逆变器的调制与控制策略研究[J]. 太阳能学报, 2025, 46(3): 412-420.
XU Qiwei, FU Yilun, MIAO Yiru, et al. Modulation and control strategy of novel single-phase grid-connected current source inverter[J]. Acta Energiae Solaris Sinica, 2025, 46(3): 412-420.
|
| [14] |
WANG S, CHEN M W, LI Q Z, et al. A unified fault-location method of autotransformer traction network for high-speed railway[J]. IEEE Transactions on Power Delivery, 2021, 36(6): 3925-3936. doi: 10.1109/TPWRD.2021.3051302
|
| [15] |
吴游龙, 韩正庆, 刘淑萍. 基于GA-PSO的牵引供电系统自愈重构策略研究[J]. 电力系统保护与控制, 2025, 53(14): 80-89.
WU Youlong, HAN Zhengqing, LIU Shuping. Research on self-healing reconfiguration strategy for traction power supply systems based on GA-PSO[J]. Power System Protection and Control, 2025, 53(14): 80-89.
|
| [16] |
高仕斌, 罗嘉明, 陈维荣, 等. 轨道交通“网-源-储-车”协同供能技术体系[J]. 西南交通大学学报, 2024, 59(5): 959-979, 989.
GAO Shibin, LUO Jiaming, CHEN Weirong, et al. Rail transit “network-source-storage-vehicle” collaborative energy supply technology system[J]. Journal of Southwest Jiaotong University, 2024, 59(5): 959-979, 989.
|
| [17] |
黄足平. 轨道交通采用25 kV交流制的电分相影响分析及处理对策[J]. 铁道标准设计, 2016, 60(11): 119-121.
HUANG Zuping. The influence of 25 kV AC neutral section of urban rail transit and treatment measures[J]. Railway Standard Design, 2016, 60(11): 119-121.
|
| [18] |
廉静如, 戴朝华, 姚志刚, 等. 基于跨相式-背靠背混合结构的铁路牵引用光伏储能系统及其优化控制策略[J]. 中国电机工程学报, 2025, 45(9): 3519-3529.
LIAN Jingru, DAI Chaohua, YAO Zhigang, et al. Railway traction photovoltaic energy storage system based on a hybrid structure of interphase-bridging and back-to-back inverters and its optimization control strategy[J]. Proceedings of the Chinese Society for Electrical Engineering, 2025, 45(9): 3519-3529.
|
| [19] |
李群湛. 现代牵引供电[M]. 北京: 中国铁道出版社, 2025.
|
| [20] |
李群湛, 黄小红, 马庆安, 等. 一种牵引网分布式发电供电系统及控制方法: CN202111046377.7[P]. 2021-10-12.
|
| [21] |
黄小红, 李群湛, 吴波. 一种接入牵引变电所的分布式发电系统及控制方法: CN202111046355.0[P]. 2021-11-30.
|
| [22] |
李群湛. 电气化铁路贯通供电对电网的影响与解决方案[J]. 西南交通大学学报, 2025, 60(3): 533-540, 549.
LI Qunzhan. Impact of interconnected power supply for electrified railways on power grids and its solutions[J]. Journal of Southwest Jiaotong University, 2025, 60(3): 533-540, 549.
|
| [23] |
李群湛, 彭友, 黄小红, 等. 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. doi: 10.3969/j.issn.0258-2724.20220887
LI Qunzhan, PENG You, HUANG Xiaohong, et al. Crossing power governance approach of continuous power supply system in electrified railway[J]. Journal of Southwest Jiaotong University, 2024, 59(6): 1245-1255. doi: 10.3969/j.issn.0258-2724.20220887
|
| [24] |
National Renewable Energy Laboratory (NREL). Metered instrumentation data center (MIDC) [DS/OL]. [2026-01-18]. https://midcdmz.nrel.gov/.
|
| [25] |
MUHAMAD R N M, HASHIM A H. Backward reduction application for minimizing wind power scenarios in stochastic programming[C]//2010 4th International Power Engineering and Optimization Conference (PEOCO). Shah Alam: IEEE, 2010: 430-434.
|
Figures(15) / Tables(4)
DownLoad:
