Abstract
Sichuan-Tibet Railway is faced with many extremely complex operation conditions, such as super long and large ramp tunnel, high altitude and low temperature, strong sunshine and so on. To improve the power supply capacity of traction power supply system by a wide margin, the power supply arm needs to adopt bilateral power supply full parallel operation mode, and cancel the terminal phase separation of traction substation. However, the external power supply of Sichuan-Tibet Railway is single in type and simple in structure, so the access of traction load with bilateral power supply is bound to have a serious impact on its power quality. If wind power is considered as an external power source, wind power integration puts forward higher requirements for power quality of power grid. Firstly, this paper introduces the principle of bilateral power supply for electrified railway. Then, based on PSCAD/EMTDC simulation software, a co-simulation model of bilateral power supply traction network, electric locomotive and weak power grid is built to simulate and analyze the change of equilibrium current of traction network and power quality index of weak power grid under bilateral power supply mode. Finally, the operation of weak power grid with bilateral power supply traction load and wind power connected at the same time is simulated and analyzed. The simulation results have a guiding role for practical engineering application.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Tan, X.B.: Traction power supply system of AC electrified railway. Southwest Jiaotong University Press, Chengdu (2014). (in Chinese)
Li, Q.Z.: Some key technical problems in the development of traction power supply for high speed railway in China. Railw. Trans. 32(04), 119–124 (2010). (in Chinese)
Li, Q.Z.: On new generation traction power supply system and its key technologies for electrification railway. J. Southwest Jiaotong Univ. 49(4), 559–568 (2014). (in Chinese)
Hu, J.X., Zhou, F.Y.: Status and development of neutral section passing technology for electrified railway trains. Electr. Drive Locomot. 3, 1–5 (2019). (in Chinese)
Zhang, B.Q.: Discussion on a typical locomotive live over phase fault. Railw. Locomot. Car 32(5), 99–100 (2012). (in Chinese)
Huang, K., Liu, Z.G.: Research on electromagnetic transient processes of long marshalling high-speed train passing articulated split-phase region. IEEE Access 7, 78597–78615 (2019)
Deng, Y.C., Lin, Z.L.: Thoughts on challenges faced by sichuan-tibet railway electrification project and its solutions. Electr. Railw. 30(S1), 5–11 (2019). (in Chinese)
**n, C.S., Zhang, M.J.: Research on bilateral power supply of AC electrified railway. Electr. Railw. (3), 6–11 (1998). (in Chinese)
Zhi, H., et al.: Modeling and adaptability analysis of two-way traction power supply system for high speed railway. Electr. Eng. 15, 17–19 (2019). (in Chinese)
The China Railway Electrification Bureau Group (CREG) Co., Ltd: Catenary of electrified railway. China Electric Power Press, Bei**g (2003)
Cheng, C., Zhang, M.J.: Research on bilateral power supply of AC electrified railway. Electrif. Railw. 3, 6–11 (1998). (in Chinese)
Wang, F., Wu, M.L., Zhang, S.S.: Research on bilateral power supply technology of electrified railway. In: 2020 Asia Energy and Electrical Engineering Symposium (AEEES), p. 19711415. IEEE, Chengdu (2020)
Li, Q.Z., et al.: A power supply structure of external power grid for electrified railway. CN207045163U China, 27 February 2018
Wang, Q., Liu, Z.G., Bai, W.L., Tu, F.R.: Research on the simulation model of traction power supply system based on PSCAD/EMTDC. Power Syst. Prot. Control 37(16), 35–40 (2019). (in Chinese)
Deng., Y.C., Gao, H., Chen, J.J.: Study of electrical parameter calculation for traction network in single-line tunnel based on the extend of Carson Theory. High Power Convert. Technol. 3, 6–11 (2016). (in Chinese)
Gao, Z.J.: Simulation model establishment and negative sequence current analysis of electric railway traction system. In: North China Electric Power University (2008). (in Chinese)
Wang, H., et al.: Comprehensive compensation schemes of cophase power supply of electrified railway based on ynd transformer and static var generator. Trans. China Electrotech. Soc. 35(17), 3739–3749 (2020). (in Chinese)
Acknowledgment
This work was supported by Science and Technology Project of State Grid Corporation of China (SGSCJY00GHJS2100041).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Liu, J. et al. (2022). Power Quality Analysis of Weak Power Grid Under the Connection of Bilateral Power Supply Traction Load. In: Jia, L., Qin, Y., Liang, J., Liu, Z., Diao, L., An, M. (eds) Proceedings of the 5th International Conference on Electrical Engineering and Information Technologies for Rail Transportation (EITRT) 2021. EITRT 2021. Lecture Notes in Electrical Engineering, vol 864. Springer, Singapore. https://doi.org/10.1007/978-981-16-9905-4_65
Download citation
DOI: https://doi.org/10.1007/978-981-16-9905-4_65
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-16-9904-7
Online ISBN: 978-981-16-9905-4
eBook Packages: EngineeringEngineering (R0)