A method and device for predicting broken rods of distribution lines under typhoon disasters
A distribution line and typhoon technology, applied in forecasting, electrical digital data processing, instruments, etc., can solve the problems of not fully considering the various influence characteristics of distribution line poles, poor prediction results of broken poles, etc.
Active Publication Date: 2022-01-11
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology
[0004] This application provides a method and device for predicting broken poles of distribution lines under typhoon disasters, which is used to solve the problem that the existing technology does not fully consider the various influence characteristics of poles on distribution lines, resulting in poor actual prediction results of broken poles technical issues
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Embodiment 1
[0053] For ease of understanding, see figure 1 , Embodiment 1 of a method for predicting broken poles of distribution lines under typhoon disasters provided by the present application, including:
[0054] Step 101: Construct the withstand wind speed equation of the pole in the distribution line according to the preset static balance equation and the preset limit state equation, and calculate the withstand wind speed of each pole according to the withstand wind speed equation.
[0055] It should be noted that the preset static balance equation in this embodiment is constructed for the pole of the distribution line, and the wind load imposed on the pole by the typhoon reflects the stress on the pole; the preset limit state equation It reflects the limit relationship between the maximum bearing capacity and the actual bearing capacity of the pole; the withstand wind speed is the wind speed value at which the pole can withstand the maximum wind force, and the wind speed value exce...
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This application discloses a method and device for predicting broken poles of distribution lines under typhoon disasters. The method includes: constructing the withstand wind speed equation of the pole in the distribution line according to the preset static force balance equation and the preset limit state equation, and Calculate the tolerable wind speed of each pole according to the tolerable wind speed equation; based on the random forest tree algorithm, according to the preset soil type, ground roughness, tolerable wind speed, historical wind speed and historical wind direction, construct the broken pole of the distribution line under the typhoon disaster Prediction model; input the real-time wind speed and real-time wind direction into the broken pole prediction model to obtain the predicted state of each pole of the power distribution line under the typhoon. The present application can solve the technical problem that the prior art does not comprehensively consider various influence characteristics of distribution line poles, resulting in poor prediction results of actual broken poles.
Description
technical field [0001] The present application relates to the technical field of power grid security, and in particular to a method and device for predicting broken poles of power distribution lines under typhoon disasters. Background technique [0002] Under the action of strong wind, the poles and wires of power grid distribution lines are prone to accidents such as inverted poles or disconnected lines, resulting in line tripping. The distribution network mostly uses reinforced concrete poles, the lines are long, and most of them are in relatively closed rural areas. When the rural distribution network lines break during a typhoon, it will be very troublesome to transport new poles to the site for installation, which will seriously affect the work of typhoon power supply protection. schedule. If the line in the wind disaster can predict the state of the pole in the distribution line under the influence of the typhoon in advance, preventive measures can be taken in advance...
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IPC IPC(8): G06Q10/04G06F30/20G06F17/11G06Q50/06G06F119/14
CPCG06Q10/04G06F30/20G06F17/11G06Q50/06G06F2119/14
Inventor 刘小璐聂铭谢文平罗啸宇黄正
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID