Abstract
In recent years, the technology in smart substation has been rapidly developed in China, and core technical advantages such as digitalization and standardization of information sharing in smart substation have been further demonstrated. However, the advantages of smart stations such as logical isolation and process layer data sharing are not fully utilized in the maintenance of protection device in smart substation. At present, isolator link mechanism is still widely used in the maintenance of protection device in smart substation, and plugging and unplugging of equipment fibers are often required during the testing process, which brings potential risks to the safe operation of the protection equipment. In order to solve these problems, this paper proposes a technical solution of remote online relay protection testing system architecture by deeply exploring the digital advantages of smart substations. Firstly, the virtual circuit logical isolation technology for relay protection devices based on IEC61850 ED2 is discussed in detail. Secondly, it focuses on the design and functional application of the smart substation remote online testing APP; Based on the current technical situation, the feasibility of realizing network remote secure access from the dispatching center to the smart substation side and the entire test data flow are emphatically analyzed. Combined with the pilot project, the remote online relay protection testing system is preliminarily verified. The results show that remote online testing of relay protection can effectively improve the efficiency of operation and maintenance of relay protection in smart substations.
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References
Yang, Z., Zhou, B., Zhang, H., et al.: Discussion on novel scheme of smart substation automation system. Autom. Electr. Power Syst. 40(14):1–7 (2016). https://doi.org/10.7500/AEPS20150825008
Luo, L., Peng, Q., Wang, D., et al.: Monitoring method of process level network in smart substation. Autom. Electr. Power Syst. 42(11), 151–156 (2018). https://doi.org/10.7500/AEPS20170728006
Liu, H., Gao, X., Du, L., Yu, J.: Modular design of intelligent substation SCD file management and control system. Power Syst. Prot. Control 47(3), 154–159 (2019)
Chen, D., Xu, L., Zhao, X.: Development and analysis of core IEC standards for smart substation automation and relay protection. Autom. Electr. Power Syst. 43(21), 229–239 (2019). https://doi.org/10.7500/AEPS20190401004
Hu, S., Li, L., Zhu, X., et al.: Auxiliary safety measures of protection relay in smart substation based on switching of maintenance states. Autom. Electr. Power Syst. 43(1), 242–247 (2019). https://doi.org/10.7500/AEPS20180409011
Liu, K., Huang, M., Li, Y., et al.: Fault information model and online monitoring method for relay protection system in smart substation. Power Autom. Equip. 38(2), 210–216 (2018)
Ye, Y., Sun, Y., Huang, T., Guo, M., Huang, Y.: Online state detection and fault diagnosis technology of relay protection secondary circuits in smart substation. Power Syst. Prot. Control 44(20), 148–153 (2016)
Zhou, C., Wu, H., Hu, G., et al.: Non-intruding development of automatic test system based on IEC 61850 edition2.0. Power Syst. Prot. Control 45(14), 143–147 (2017)
Peng, Z., Liu, Y., Luo, J., **ong, H, Fan, Q.: Architecture and key technologies of smart substation's monitoring and control information automatic acceptance system. Power Syst. Prot. Control 48(7), 174–181 (2020)
Qin, H., Wu, F., Peng, S., Ge, L., You, T.: New technology research on secondary equipment operation maintenance for smart grid. Power Syst. Prot. Control 43(22), 35–40 (2015)
Apostolov, A.: Remote testing of digital substations. In: CIGRE Chengdu Symposium 2019, Chengdu (2019)
Apostolov, A.: Functional testing of centralized protection systems. In: CIGRE Session 2022, Paris (2022)
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This work is supported by National Key R&D Program of China (2021YFB2401000).
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Tang, Y., Yu, Z., Lv, H., Du, J., Wang, Z. (2024). Research on the Architecture and Key Technologies of Remote Online Protection Testing System in Smart Substation. In: Xue, Y., Zheng, Y., Gómez-Expósito, A. (eds) Proceedings of the 8th PURPLE MOUNTAIN FORUM on Smart Grid Protection and Control (PMF2023). PMF 2023. Lecture Notes in Electrical Engineering, vol 1129. Springer, Singapore. https://doi.org/10.1007/978-981-99-9251-5_4
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DOI: https://doi.org/10.1007/978-981-99-9251-5_4
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