Method for setting analog charges in wire in power transmission line electric field calculation

A technology for simulating charges and transmission lines, applied in calculation models, computer-aided design, calculations, etc., can solve problems such as limited calculation accuracy, increased calculation amount, and inability to meet the boundary conditions of wire potential well, and achieve optimal settings, The effect of improving accuracy

Pending Publication Date: 2020-01-31
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

However, the calculation accuracy of the method of setting one line charge is limited, and it cannot well satisfy the potential boundary conditions of the wire; the empirical formula method is not suitable for the case where there are 2 to 5 simula

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  • Method for setting analog charges in wire in power transmission line electric field calculation
  • Method for setting analog charges in wire in power transmission line electric field calculation
  • Method for setting analog charges in wire in power transmission line electric field calculation

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Embodiment Construction

[0029] Such as Figure 1-4 As shown, a method for setting the analog charge in the wire in the calculation of the electric field of a transmission line provided by the present invention includes the following steps:

[0030] a. Evenly set multiple simulated line charges on a certain concentric circle of each equivalent wire, and set corresponding matching points and check points on the surface of the wire;

[0031] b. Calculate the simulated charge matrix;

[0032] c. Calculate the potential error of the calibration point;

[0033] d. Use the particle swarm optimization simulation charge method to obtain the radius of the simulated charge distribution circle that minimizes the potential error of the check point, then calculate the coordinates and charge amount corresponding to the simulated charge group, and finally calculate the electric field around the transmission line based on the simulated charge group . The invention can effectively realize the optimal setting of the...

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Abstract

The invention discloses a method for setting analog charges in a wire in electric field calculation of a power transmission line, which comprises the following steps of: a, uniformly setting a plurality of analog wire charges on a certain concentric circle of each phase of equivalent wire, and setting corresponding matching points and check points on the surface of the wire; b, calculating an analog charge matrix; c, calculating the potential error of the check point; and d, obtaining the radius of a simulated charge distribution circle which minimizes the potential error of the check point byusing a particle swarm optimization (PSOCSM) simulated charge method, calculating the coordinates and charge quantity of the corresponding simulated charge group, and finally calculating the electricfield around the power transmission line according to the simulated charge group. According to the method, the optimal setting of the analog charge in the wire can be effectively realized, and compared with the conventional setting method (central single-wire method) of the analog charge in the wire, the potential error of the check point is greatly reduced, and the electric field calculation precision is improved.

Description

technical field [0001] The invention belongs to the field of electric field calculation, and in particular relates to a method for setting analog charges in conductors in electric field calculation of transmission lines. Background technique [0002] With the rapid development of my country's economy, various high-voltage transmission projects have been constructed one after another, so the electromagnetic environment around the transmission line has also begun to receive close attention. Among them, the power frequency electric field generated by the high-voltage transmission line is the main factor in the electromagnetic environment problem. Compared with the field measurement, the numerical calculation of the electric field can save a lot of manpower, material resources and time, and the electric field distribution of the whole field can be obtained by calculation. Therefore, by calculating the power frequency electric field around the high-voltage transmission line, it ...

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Application Information

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IPC IPC(8): G06F30/27G06N3/00G06F113/16
CPCG06N3/006Y02E60/00
Inventor 于永进赵克成李长云姜雅男
Owner SHANDONG UNIV OF SCI & TECH
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