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Transmission Line Modeling and Algorithm Analysis Considering Parameter Asymmetry and Transient High-frequency Components

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Abstract

When the power system is disturbed or the operation mode is changed, the electromagnetic transient process will occur, which will lead to the high frequency transient component and affect the protection and control of the power system. Therefore, attention should be paid to the analysis of high-frequency transient components when modeling and analyzing the system model. In view of the fact that the symmetrical-component theory is not suitable for asymmetric transmission lines and the phasor method is not suitable for transient analysis and calculation, this paper uses the phase coordinate approach and Laplace transform to derive the node voltage equation of three-phase π type transmission lines in frequency domain, which can be used to calculate the transient response of transmission lines caused by the change of operation mode or disturbance. And vectorized NILT is used to calculate the time domain solution, which greatly improves the calculation speed. The calculated results are basically consistent with those of ATP-EMTP, and can fully reflect the transient characteristics. This method lays a foundation for analyzing the influence of high frequency transient components on power system and fault analysis considering transient process.

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Acknowledgement

This work was funded by the National Natural Science Foundation of China (Grant number 51567003).

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Authors and Affiliations

  1. School of Electrical Engineering, Guangxi University, Nanning, China

    Shixun Mo, Zhipeng Lv, Kunlun Han, Rongji Yuan, Hao Yang, Kunping Jiang & Zhenshen Liang

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  1. Shixun Mo
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  2. Zhipeng Lv
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Correspondence to Shixun Mo.

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Mo, S., Lv, Z., Han, K. et al. Transmission Line Modeling and Algorithm Analysis Considering Parameter Asymmetry and Transient High-frequency Components. J. Electr. Eng. Technol. 16, 711–723 (2021). https://doi.org/10.1007/s42835-020-00619-y

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  • DOI: https://doi.org/10.1007/s42835-020-00619-y

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