Analysis of lightning overvoltages at the junction of distribution network based on electromagnetic topology

Zhang Yin; Liao Cheng; Shang Yuping; Du Wei; Ye Zhihong

doi:10.11884/HPLPB202133.210189

Volume 33 Issue 8

Aug. 2021

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Article Navigation > High Power Laser and Particle Beams > 2021 > 33(8): 083001

Zhang Yin, Liao Cheng, Shang Yuping, et al. Analysis of lightning overvoltages at the junction of distribution network based on electromagnetic topology[J]. High Power Laser and Particle Beams, 2021, 33: 083001. doi: 10.11884/HPLPB202133.210189

Citation:

Zhang Yin, Liao Cheng, Shang Yuping, et al. Analysis of lightning overvoltages at the junction of distribution network based on electromagnetic topology[J]. High Power Laser and Particle Beams, 2021, 33: 083001. doi: 10.11884/HPLPB202133.210189

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Analysis of lightning overvoltages at the junction of distribution network based on electromagnetic topology

doi: 10.11884/HPLPB202133.210189

1.
School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
2.
School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Received Date: 2021-05-18
Rev Recd Date: 2021-07-08

Available Online: 2021-07-21

Publish Date: 2021-08-15

Abstract

Abstract

The analysis of the lightning overvoltages of the distribution network is related to safe and reliable power supply of the power system, which needs to be paid attention to. However, the structure of the distribution network is complex, and an effective analysis is difficult to achieve through the use of classic transmission line equations. Therefore, in this paper, the electromagnetic topology method, which is suitable for the synchronous solution of the electromagnetic response at the junctions of the complex system, is introduced into the analysis of the lightning overvoltages in the distribution network. First, the BLT equation suitable for transmission line networks is provided and the construction methods of its elements are shown; then, the analysis process of electromagnetic topology is demonstrated in detail with an example of a complex distribution network, and the solution steps of the scattering matrix of the ideal junction are shown emphatically. The results show that the electromagnetic topology method is applicable to the analysis of the lightning overvoltages at the junction of the distribution network, as the calculation results are quite consistent with the results of CST, and the time consumed is much less than CST.
- electromagnetic topology,
- distribution network,
- lightning overvoltages,
- junction,
- scattering matrix

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References(21)

References

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