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Stress analysis method for tubular busbar, downlead and hardware system

A stress analysis and down-conductor technology, applied in the field of substation, can solve the problems of pipe busbar and down-conductor coupling consideration, non-linear deformation of down-conductor, etc., and achieve the effect of perfect layout

Active Publication Date: 2019-08-16
ELECTRIC POWER SCI RES INST OF STATE GRID XINJIANG ELECTRIC POWER +2
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Problems solved by technology

[0002] At present, for the load calculation of the tube bus down conductor system, according to the relevant regulations of the "Electrical Design Manual for Electric Power Engineering", the coupling between the tube bus and the down conductor is not considered, and the calculation of the down conductor is also from a practical point of view. The simplified model uses the static equilibrium condition to solve the fulcrum reaction force, and does not consider the nonlinear deformation of the downconductor under the wind load, which is different from the actual situation

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  • Stress analysis method for tubular busbar, downlead and hardware system
  • Stress analysis method for tubular busbar, downlead and hardware system
  • Stress analysis method for tubular busbar, downlead and hardware system

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Embodiment Construction

[0037] A stress analysis method for pipe busbar, down conductor and fitting system, comprising:

[0038] 1 Numerical simulation of pipe bus down conductor system

[0039] 1.1 Parameters of pipe bus down conductors

[0040] Referring to a real case, on June 23, 2016, a substation operation and maintenance personnel found that a certain isolating switch B phase I bus side transition tube parent fixing hardware was broken, and the substation was put into operation on October 23, 2015. For the specific layout of the pipe bus down conductor system, see figure 1 , figure 2 .

[0041] Such as figure 1 As shown, the bus downconductor of the transition pipe on the bus side of Phase B I bends along the wind direction, and the length of the downconductor is greater than 13 meters according to the construction drawing. Such as figure 2 As shown, one end of the transition tube on the B-phase I bus side is connected to the supporting insulator in a sliding manner (the connecting har...

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Abstract

The invention discloses a stress analysis method for a tubular bus bar, a downlead and a fitting system, which comprises the following steps of: analyzing and simulating a four-split downlead and a tubular bus bar by adopting a beam unit (beam 188) and a rod unit (link 180), and accurately solving a fulcrum counterforce; and simulating the sliding type tubular bus fixing fitting by utilizing a solid unit (Solid187); establishing tubular busbar downlead system models with different parameters through finite element software ANSYS, and analyzing the influence of each parameter on the stress of the tubular busbar constraint node; and applying the stress of the tubular bus joint to the fitting model for static analysis. The method can accurately solve the node counter-force of the tubular busdownlead coupling system, and applies the node counter-force to the stress calculation of hardware fittings, thereby improving the arrangement mode of the tubular bus downlead coupling system and thecorresponding hardware fitting design.

Description

technical field [0001] The invention relates to the technical field of substations, in particular to a stress analysis method for pipe busbars, down conductors and fittings systems. Background technique [0002] At present, for the load calculation of the tube bus down conductor system, according to the relevant regulations of the "Electrical Design Manual for Electric Power Engineering", the coupling between the tube bus and the down conductor is not considered, and the calculation of the down conductor is also from a practical point of view. The simplified model uses the static equilibrium condition to solve the fulcrum reaction force, and does not consider the nonlinear deformation of the downconductor under the wind load, which is different from the actual situation. According to the relevant provisions of national standard GB / T 2317.1 and GB 8287.2, the design load of the corresponding post insulator is also considered in the mechanical load test of the pipe nut fixing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23Y02E60/00
Inventor 李勇杰张陵何成杨利民郑义赵普志杨柱石王欣欣赵建平崔晓东庄凌志阿依古扎力·阿肯江晏致涛余国庆刘欣鹏
Owner ELECTRIC POWER SCI RES INST OF STATE GRID XINJIANG ELECTRIC POWER
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