Affiliation:
1. Engineering Research Center for Renewable Energy Generation and Grid Integration, Ministry of Education, Xinjiang University, Urumqi 830017, China
Abstract
To enhance the reliability of traditional current protection systems in the evolving landscape of future power grids, this paper proposes a differential protection data synchronization approach that leverages satellite and 5G network timing. This method addresses the risk of inadvertent operation due to 5G communication jitter. It employs the BeiDou satellite system for synchronizing the timing of 5G base stations and terminals. This synchronization extends to the 5G terminal and the protection device, thereby mitigating time deviations caused by air interface delays and reducing the 5G network’s end-to-end delay by approximately 4 ms on average. A simulation was conducted to assess the reliability and effectiveness of the proposed method under normal satellite signal conditions. The results indicated a significant improvement in protection accuracy, with the method reducing the protection activation time by approximately 5–7 ms compared to the 5G timing data synchronization method. This advancement offers technical support for the safe and stable operation of new power systems.
Funder
National Natural Science Foundation of China
Major Science and Technology Special Project for Xinjiang Uygur Autonomous Region
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference31 articles.
1. SDH-based time synchronous system for power system communications;Serizawa;IEEE Trans. Power Deliv.,1998
2. Wei, Q. (2018). 4G LTE Wireless Communication Technology and Its Applications in Power Private Networks. [Master’s Thesis, Nanjing University of Posts and Telecommunications].
3. Evolution strategy from 4G wireless private network to 5G in power CPS environment;Zhao;Electr. Power,2021
4. Challenges and opportunities of 5G in power grids;Bag;CIRED-Open Access Proc. J.,2017
5. Wang, C., Zheng, L., Zhao, Z., Lv, Z., Jiang, X., Liu, H., and Yuan, C. (2023, January 21–22). Research on Communication Solutions Under the Background of New Power System. Proceedings of the 2023 International Conference on Power System Technology (PowerCon), Jinan, China.