A method and system for testing the distribution state of wind deflection angles along the entire transmission line
A transmission line and distribution state technology, applied in the direction of geometric CAD, special data processing applications, etc., can solve the problems of long line length, inability to obtain transmission line wind angle, wind speed deviation, etc., and achieve the effect of accurate wind angle change monitoring
Active Publication Date: 2020-03-27
SHENZHEN POWER SUPPLY BUREAU
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Problems solved by technology
[0003] However, the existing technology can only realize windage monitoring by calculating the windage angle of a large area or area of the transmission line, but it is unable to obtain the windage angle of the entire line of the transmission line, and because the entire line is long, the distance is too far apart The two points of the deviation due to different wind speeds
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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0033] Such as figure 1 As shown, in the embodiment of the present invention, a method for testing the distribution state of the wind deflection angle of the entire line of the transmission line is provided, and the method includes:
[0034] Step S1, obtaining each wind speed test point on the transmission line and its corresponding wind speed; wherein, the distance between two adjacent wind speed test points should be within a preset distance range;
[0035] The specific process is to divide each wind speed test point on the entire transmission line, and give the corresponding positional relationship and the corresponding wind speed. At this time, the distance between two adjacent wind speed test points should be at a preset distance Within the range, such as [4...
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The invention provides a method for testing a wind deflection angle distribution state of the whole line of a transmission line. The method comprises the following steps: acquiring each wind speed test point on the transmission line and wind speed corresponding to each wind speed test point; obtaining a wind load of each wind speed test point and a wind pressure asymmetrical coefficient corresponding to each wind load according to the wind speed at the corresponding wind speed test point; acquiring the number of sub-conductors and the radiuses of the sub-conductors at each wind speed test point, and calculating the conductor wind pressure at each wind speed test point according to the number of the sub-conductors, the radiuses of the sub-conductors, the wind load and the wind pressure asymmetrical coefficient of the corresponding wind speed test point; acquiring the weight per unit length of the sub-conductors of each wind speed test point, and obtaining the wind deflection angle of each wind speed test point according to the obtained weight per unit length of the sub-conductors of each wind speed test point and the calculated conductor wind pressure of each wind speed test point. By implementing the method, wind deflection angles on the whole line of the transmission line can be acquired; the change of the wind deflection angles can be monitored accurately.
Description
technical field [0001] The invention relates to the technical field of transmission line detection, in particular to a method and system for testing the distribution state of wind angles along the entire transmission line. Background technique [0002] Wind deflection flashover accidents occur frequently on transmission lines and are widely distributed, which pose a serious threat to the safe operation of the power grid. Therefore, in order to prevent the occurrence of the above-mentioned wind deflection flashover accidents, it is necessary to monitor the wind deflection at each point of the transmission line to judge the probability of wind deflection flashover accidents and locate the location of wind deflection flashover accidents. [0003] However, the existing technology can only realize windage monitoring by calculating the windage angle of a large area or area of the transmission line, but it is unable to obtain the windage angle of the entire line of the transmissi...
Claims
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IPC IPC(8): G06F30/17
CPCG06F30/17
Inventor 李勋向真黄荣辉刘顺桂姚森敬伍国兴徐曙
Owner SHENZHEN POWER SUPPLY BUREAU