Impedance characteristics of loop closing device based on improved phase shifting transformer

Zhi Xu; Jianxiong Tang; Hongsheng Ma; Yupeng Jiang; Junpeng Li; Yongchun Yang

doi:10.1117/12.2689880

10 August 2023 Impedance characteristics of loop closing device based on improved phase shifting transformer

Zhi Xu, Jianxiong Tang, Hongsheng Ma, Yupeng Jiang, Junpeng Li, Yongchun Yang

Proceedings Volume 12748, 5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023); 1274839 (2023) https://doi.org/10.1117/12.2689880
Event: 5th International Conference on Information Science, Electrical and Automation Engineering (ISEAE 2023), 2023, Wuhan, China

Abstract

With the increasing reliability of power supply in distribution networks, loop closing operation is often required to achieve non-stop load transfer. Firstly, the loop closing device based on improved phase shifting transformer (IPST) can be effectively used in complex loop closing scenarios such as three-phase asymmetry and voltage magnitude difference between the buses on both sides of the loop closing point of the distribution network, considering that the internal impedance of the loop closing device has a certain influence on the quality of the loop transfer voltage. Secondly, the mathematical model of IPST equivalent impedance is established based on the basic principle of transformer, and the expressions of IPST equivalent impedance calculation and the factors affecting the size are derived and analyzed. Finally, the correctness of the proposed IPST-based impedance calculation expression for the loop closing device is verified by MATLAB and PSCAD/EMTDC simulation platform.

Citation Download Citation

Zhi Xu, Jianxiong Tang, Hongsheng Ma, Yupeng Jiang, Junpeng Li, and Yongchun Yang "Impedance characteristics of loop closing device based on improved phase shifting transformer", Proc. SPIE 12748, 5th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2023), 1274839 (10 August 2023); https://doi.org/10.1117/12.2689880

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