A comprehensive protection scheme for regenerative braking energy utilization system in electrified railways

Abstract

The regenerative braking energy utilization system (RBEUS) stands as a promising technique for improving the efficiency and power quality of electrified railways. Beyond the vital aspects of energy management and control strategies, ensuring fault protection is paramount for the secure and steady operation of the traction power supply system (TPSS) integrated with RBEUS. This paper introduces an innovative protection scheme tailored to diverse RBEUS application scenarios. Firstly, fault categories are streamlined into three levels: system, equipment, and warning. Subsequently, a novel multi-port active power differential protection method, aligned with RBEUS operational principles, is crafted to serve as a comprehensive and sensitive main protection. Building upon this foundation, a hierarchical protection structure for RBEUS is established, addressing the intricacies and variations in fault types while boosting anti-disturbance capabilities under faulty conditions. Embracing the principle of railway-oriented safety, a collaborative RBEUS-TPSS protection scheme is put forth. Finally, through simulated scenarios encompassing various fault conditions, the proposed scheme’s feasibility and effectiveness are convincingly validated.

Keywords

Regenerative braking energy utilization system / Electrified railway / Protection scheme

References

[1] HuH, LiuY, LiY, et al.. Traction power systems for electrified railways: evolution, state of the art, and future trends. Railw Eng Sci, 2024, 32(1): 1-19.

[2] PerinI, WalkerGR, LedwichG. Load sharing and wayside battery storage for improving AC railway network performance, with generic model for capacity estimation, part 1. IEEE Trans Ind Electron, 2019, 66(3): 1791-1798.

[3] PugiL. Synergic design and simulation of battery-operated trains on partially electrified lines: a case study regarding the Firenze Faenza line. Energies, 2023, 17124.

[4] ChenJ, HuH, WangM, et al.. Power flow control-based regenerative braking energy utilization in AC electrified railways: review and future trends. IEEE Trans Intell Transp Syst, 2024, 25(7): 6345-6365.

[5] ZhaoN, TianZ, HillmansenS, et al.. Timetable optimization and trial test for regenerative braking energy utilization in rapid transit systems. Energies, 2022, 15134879.

[6] LiM, DaiC, ChenW. Train timetable optimization for suppressing traction power fluctuations, especially on mountainous railway lines with long, steep grades. Transp Res Rec J Transp Res Board, 2024, 2678(8): 761-771.

[7] KierzkowskiA, HaładynS. Method for reconfiguring train schedules taking into account the global reduction of railway energy consumption. Energies, 2022, 1551946.

[8] ChenJ, ZhaoY, WangM, et al.. Power sharing and storage-based regenerative braking energy utilization for sectioning post in electrified railways. IEEE Trans Transp Electrif, 2024, 10(2): 2677-2688.

[9] GeY, HuH, ChenJ, et al.. Hierarchical energy management of networked flexible traction substations for efficient RBE and PV energy utilization within ERs. IEEE Trans Sustain Energy, 2023, 14(3): 1397-1410.

[10] GeY, HuH, ChenJ, et al.. Combined active and reactive power flow control strategy for flexible railway traction substation integrated with ESS and PV. IEEE Trans Sustain Energy, 2022, 13(4): 1969-1981.

[11] ChenJ, GeY, WangK, et al.. Integrated regenerative braking energy utilization system for multi-substations in electrified railways. IEEE Trans Ind Electron, 2023, 70(1): 298-310.

[12] BenslimaneA, BouchnaifJ, EssoufiM, et al.. Comparative study of semiconductor power losses between CSI-based STATCOM and VSI-based STATCOM, both used for unbalance compensation. Prot Control Mod Power Syst, 2020, 54.

[13] Bai X, Peng J, He X (2020) Design of comprehensive compensation system for railway power distribution system. In: 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), Nanjing, China. IEEE, pp1530–1536

[14] RoyC, ChatterjeeD, BhattacharyaT. An economic hybrid shunt compensator for power factor correction and mitigation of large unbalance as in HV traction distribution system. IEEE Trans Ind Appl, 2023, 59(5): 5989-5999.

[15] WangH, LiuW, LiQ, et al.. Compensation of negative sequence for a novel AC integrated power supply system of urban rail transit. IET Generation Trans & Dist, 2021, 15(22): 3188-3203.

[16] PandeN, OhnishiW, KosekiT. Analysis of voltage unbalance and mitigation of circulating power in bilateral co-phase traction system. Electr Power Syst Res, 2024, 228. 110048

[17] ChenJ, ZhaoY, LinH, et al.. Analysis and control of cascaded energy storage system for energy efficiency and power quality improvement in electrified railways. IEEE Trans Transp Electrif, 2024, 10(1): 1299-1313.

[18] ChenJ, HuH, GeY, et al.. An energy storage system for recycling regenerative braking energy in high-speed railway. IEEE Trans Power Deliv, 2021, 36(1): 320-330.

[19] MorrenJ, de HaanSWH. Short-circuit current of wind turbines with doubly fed induction generator. IEEE Trans Energy Convers, 2007, 22(1): 174-180.

[20] BaranM, EI-Markaby I, . Fault analysis on distribution feeders with distributed generators. IEEE Trans Power Syst, 2005, 20(4): 1757-1764.

[21] PradhanAK, JoosG. Adaptive distance relay setting for lines connecting wind farms. IEEE Trans Energy Convers, 2007, 22(1): 206-213.

[22] CoffeleF, BoothC, DyśkoA. An adaptive overcurrent protection scheme for distribution networks. IEEE Trans Power Deliv, 2015, 30(2): 561-568.

[23] UstunTS, OzansoyC, ZayeghA. Modeling of a centralized microgrid protection system and distributed energy resources according to IEC 61850-7-420. IEEE Trans Power Syst, 2012, 27(3): 1560-1567.

[24] Han Z, Cao X, Gao S et al (2012) Protection and control system for cophase supply traction substation. In: 11th IET International Conference on Developments in Power Systems Protection (DPSP 2012), Birmingham, UK. IET, pp 1–5

[25] LiZ, LiX, WeiY, et al.. Ground fault analysis and grounding method of static power converters in flexible AC traction power supply systems. IEEE Trans Power Electron, 2022, 37(5): 5535-5546.

Funding

National Natural Science Foundation of China(52107126)

Key Regional Innovation and Development Joint Fund Project(2023YFB2303901)

the funding of Chengdu Guojia Electrical Engineering Co.,Ltd(No. NEEC-2022-B11)

RIGHTS & PERMISSIONS

The Author(s)