基于惠更斯原理的电气设备局部放电电磁传播计算方法

doi:10.19595/j.cnki.1000-6753.tces.181375

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Abstract To solve the problems of low computational efficiency and the large memory consumption caused by the incomparable size of partial discharge (PD) source with equipment in mesh generation, a numerical calculation method for electromagnetic propagation of PD in electrical equipment based on Huygens principle is presented in this paper. The first step is to refine the near-field space of the enclosed discharge source and the closed outer surface electromagnetic field is calculated. In the second step, the electromagnetic field data is imported into the target domain as an equivalent source for calculation. As the mesh size of the target space is greatly increased by using the equivalent source, the propagation characteristics of the electromagnetic field in the passive region can be quickly obtained. To verify the accuracy and efficiency of the proposed method, the electromagnetic propagation of PD in free space is taken as an example. In the end, by calculating the electromagnetic propagation of PD in a large-scale and complex dry-type transformer, the peak memory consumption based on Huygens principle is reduced to 35.45% and the computing efficiency is increased by 61.68 times. The calculation method of Huygens principle provides a method for calculating the electromagnetic propagation of PD in large-scale electrical equipment.

Key words： Huygens principle equivalent source partial discharge electromagnetic propagation numerical calculation

Received: 17 August 2018 Published: 18 November 2019

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TM154

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	Yang Qi
	Yang Fan
	Gao Bing
	Huang Xin
	Yu Peng

Cite this article:

Yang Qi,Yang Fan,Gao Bing等. Research on Electromagnetic Propagation of Partial Discharge for Electrical Equipment Using Huygens Principle[J]. Transactions of China Electrotechnical Society, 2019, 34(21): 4419-4427.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181375 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I21/4419

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