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Heterogeneous multiple conductor transmission line inductance matrix direct evaluation method

A multi-conductor transmission line and inductance matrix technology, which is applied in the directions of inductance measurement, electrical variable measurement, resistance/reactance/impedance measurement, etc., can solve the problems of less research on direct estimation methods and cumbersome solution process

Inactive Publication Date: 2016-02-10
HARBIN ENG UNIV
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Problems solved by technology

[0003] To sum up: there are few existing literature reports on the direct estimation method of the inductance matrix of non-uniform multi-conductor transmission lines, and the traditional method needs to go through multiple conversions to solve the inductance matrix, and the solution process is cumbersome

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  • Heterogeneous multiple conductor transmission line inductance matrix direct evaluation method
  • Heterogeneous multiple conductor transmission line inductance matrix direct evaluation method
  • Heterogeneous multiple conductor transmission line inductance matrix direct evaluation method

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings.

[0050] Solve the difficult problem of direct estimation of inductance matrix of non-uniform multi-conductor transmission line in transmission line analysis problem. For this problem, the present invention proposes a new direct method for estimating the inductance matrix of a non-uniform transmission line based on the electromagnetic field coupling mechanism. Based on the improved method of moments, the method divides the non-uniform transmission line into microelements, which makes the method suitable for transmission lines with any spacing and any structure. Then the field analysis is carried out, and then the system matrix model is established, and finally the inductance matrix of the non-uniform transmission line is deduced.

[0051] Firstly, an example model of N+1 non-uniform multi-conductor transmission line is established, and its physical structure is as follo...

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Abstract

The invention belongs to the electromagnetic compatibility transmission line unit length electrical parameter analysis field, and more specifically relates to a heterogeneous multiple conductor transmission line inductance matrix direct evaluation method. The method comprise: first employing fine line grids to disperse each signal line conductor and a grounding plate into fine line structures, wherein the current fine line of each signal line conductor forms a loop with the sth fine line of the grounding plate to obtain Nc loops; meanwhile calculating a directional factor referring to transmission line parameter analysis; writing equations in a matrix form; and obtaining a heterogeneous multiple conductor transmission line impedance matrix. The method can obtain accurate measurement results, have a more convenient calculation process than a traditional method, directly solve an inductance matrix without multitime conversion, and possess high practical reference value.

Description

technical field [0001] The invention belongs to the field of electric parameter analysis per unit length of a transmission line in electromagnetic compatibility, and specifically relates to a direct estimation method for the inductance matrix of a non-uniform multi-conductor transmission line. Background technique [0002] The problem of estimating the inductance matrix per unit length of multi-conductor transmission lines is the basis of transmission line analysis. Common transmission line electrical parameters per unit length are mainly solved by numerical calculation methods such as the method of moments. Scholars represented by Professor Paul C.R used the moment method to systematically analyze the solution of conductor electrical parameters, and proposed many effective solutions. But its research is all based on the analysis of the uniform transmission line. The electrical parameter per unit length of a classic two-wire transmission line is only a simple value, which ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/26
CPCG01R27/2611
Inventor 孙亚秀王晓萌李千卓庆坤郭婷婷
Owner HARBIN ENG UNIV
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