A path planning method for equipotential operation of UHV AC line hanging basket method considering environmental factors
A UHV AC and route planning technology, applied in the direction of overhead lines/cable equipment, etc., can solve the problems affecting the safety distance and combined gap value of live work, and the lack of environmental factors, etc.
Active Publication Date: 2021-03-09
CHINA THREE GORGES UNIV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, at present, the determination of the safety distance and combined clearance for live working is mainly based on the conclusions obtained from the simulation tests of typical tower types, and lacks the consideration of environmental factors, because the dielectric constant of air is affected by air temperature, humidity, and air pressure. Affects the determination of live working safety distance and combined gap value
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] A UHV AC line hanging basket method equipotential operation path planning method that considers environmental factors. By measuring the meteorological parameters of the geographical location of the live working tower of the UHV AC transmission line, the air humidity H and the ambient temperature T during operation are obtained. , and the air pressure P at that time, on this basis, the relative permittivity of the air is obtained; through the determination of the length of the working rope and the judgment of the combined gap, the position of the equipotential operator in the hanging basket is initially determined, and then the Electric field calculation is performed on the human body surface field strength of each operation track point; and the human body surface field strength of each operation point is compared with the halo initiation field strength of the air, and ten operation track points are finally determined, which will meet the requirements The ten low points o...
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 PUM
Login to View More Abstract
A UHV AC line hanging basket method equipotential operation path planning method that considers environmental factors. By measuring the meteorological parameters of the geographical location of the live working tower of the UHV AC transmission line, the air humidity H and the ambient temperature T during operation are obtained. , and the air pressure P at that time, on this basis, the relative permittivity of the air is obtained; through the determination of the length of the working rope and the judgment of the combined gap, the position of the equipotential operator in the hanging basket is initially determined, and then the The electric field is calculated for the human body surface field strength of each operation point; and the human body surface field strength of each operation point is compared with the critical halo field strength of the wire, and finally ten operation point points are determined, which will meet the requirements The low points of the ten operation trajectories are connected into an arc to obtain the planned path of the UHV AC line hanging basket method equipotential operation. The invention considers the environmental factors of the working pole and tower, aims at the equipotential working path of the hanging basket method planned for the UHV AC transmission line, and provides theoretical basis and guidance for safe live working.
Description
technical field [0001] The invention relates to a method for planning equipotential operation paths of ultra-high voltage AC lines by hanging basket method in consideration of environmental factors, and relates to the technical field of planning of equal potential operation paths of ultra-high power transmission line engineering and hanging basket method. Background technique [0002] The equipotential operation method is the most widely used in live work on high-voltage transmission lines due to its technical advantages. However, when live work is performed on UHV AC transmission lines, due to the high operating voltage of UHV AC transmission lines, the electric field around the charged body is high. UHV transmission lines are long, and the geography and climate environment along the line are complex, and the safety of workers is more affected. Therefore, it is necessary to study the safe distance of live work, the combination gap, and the best way for workers to enter and e...
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 Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/02
Inventor 智李沈艳军张宇娇黄雄峰姜岚苏攀
Owner CHINA THREE GORGES UNIV