Split conductor surface field intensity distribution calculation method and system

A technology for splitting wires and surface field strength, applied in CAD circuit design, detecting faults by conductor type, fault location, etc., can solve the influence of wire sag without considering the influence of wire sag, affecting the calculation accuracy of wire surface field strength, and not involving wires Problems such as the analysis of the longitudinal distribution of the surface field strength to achieve the effect of improving the calculation accuracy
CN110738013AActive Publication Date: 2020-01-31STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +1
11 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST
Publication Date
2020-01-31

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a split conductor surface field intensity distribution calculation method and system. The method comprises the steps of enabling a split conductor of a power transmission lineto be equivalent to a single equivalent conductor; segmenting the equivalent wire according to an arc sag catenary equation to obtain a plurality of line charge unit small segments; calculating each line charge unit small section by adopting an analog charge method so as to obtain the surface field intensity of the equivalent wire; and calculating the surface field intensity distribution of the split conductor according to the equivalent relationship between the surface field intensity of the equivalent conductor and the maximum field intensity of the surface of the split conductor. Accordingto the invention, the sag influence is considered during segmentation; a three-dimensional model of the power transmission line is established; and the surface field intensity of the equivalent conductor is calculated through a charge simulation method, the three-dimensional distribution situation of the surface field intensity of the split conductor of the power transmission line considering thesag influence is calculated, the longitudinal distribution of the surface field intensity of the conductor along the conductor can be effectively analyzed, and finally the calculation accuracy of thesurface field intensity of the conductor is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of electromagnetic detection, in particular to a method and system for calculating the surface field strength distribution of split conductors. Background technique

[0002] When the transmission line is working normally, a strong electric field intensity is often generated near the wire. When the electric field strength on the surface of the wire exceeds the corresponding inception field strength of the wire, audible noise and radio interference will be generated.

[0003] With the continuous improvement of the voltage level of AC transmission lines, the deterioration of the electromagnetic environment around EHV / UHV transmission lines has aroused strong public repercussions. The electromagnetic environment of the transmission line is closely related to the surface field strength of the split conductor, and the calculation accuracy of the surface field strength of the conductor directly affects the electro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More