基于三阈值概率分布的多导体传输线电磁参数特性

doi:10.19595/j.cnki.1000-6753.tces.161678

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Abstract The random characteristics of wire electromagnetic parameters are key factors to predict the crosstalk of multiconductor transmission lines (MTL). Combining finite element method (FEM) with probability statistical method, this paper establishes a numerical calculation model of MTL by Ansys software. According to the structure characteristics of cross section of transmission lines, the simulation model is simplified and the extraction method of electromagnetic parameter matrix of per-unit length is optimized. The effectiveness and feasibility are both verified by cases. Based on the principle of probability statistics, the probability distribution of electromagnetic parameters can be obtained by piecewise convolution method. Besides, a probability distribution algorithm taking three thresholds as the converge condition is proposed and verified. Compared the theoretical results with experimental ones, the proposed prediction method possesses the following advantages: simple and easy to operate, good versatility and high accuracy. It is shown the proposed method is an effective method to predict the crosstalk of MTL.

Key words： Multiconductor transmission lines parasitic parameters probability distribution finite element method (FEM)

Received: 21 October 2016 Published: 24 April 2018

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TM249

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	Zhao Liang
	Wang Shishan
	Lou Qianceng
	Zhang Zhao
	Yan Wei

Cite this article:

Zhao Liang,Wang Shishan,Lou Qianceng等. Characteristics of Electromagnetic Parameters of Multiconductor Transmission Lines Based on Three-Threshold Probability Distribution[J]. Transactions of China Electrotechnical Society, 2018, 33(8): 1663-1673.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.161678 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I8/1663

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