Electric transmission line icing thickness forecasting method for introducing dynamic de-icing process
A technology for ice coating thickness and power transmission lines, which is applied in electrical digital data processing, special data processing applications, instruments, etc., and can solve the problems of not considering natural ice melting, unsatisfactory forecasting effects, and large differences.
Inactive Publication Date: 2015-05-20
CHINA SOUTHERN POWER GRID COMPANY +2
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Problems solved by technology
[0003] The present invention provides a method for forecasting the ice thickness of transmission lines that introduces a dynamic ice melting process, which solves the problem that the existing ice cover forecast does not consider natural ice melting, which is different from the actual measurement The difference is large, and the forecast effect is not ideal
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[0046] Attached below picture The present invention is further described. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0047] like picture As shown in 1, a method for forecasting the ice thickness of transmission lines with the introduction of dynamic ice melting process includes the following steps:
[0048] Step 1: Positioning the tower: According to the simulation area of the mesoscale model, the longitude and latitude data of the tower are used to calculate the grid point position of the tower in the mesoscale model area, and the grid point data file corresponding to the tower is generated.
[0049] Step 2, extracting the meteorological data of the location of the tower.
[0050] Meteorological data includes temperature, relative humidity, wind direction data, and cumulative precipitation at each hour in the next 72 hours. The wind di...
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The invention discloses an electric transmission line icing thickness forecasting method for introducing a dynamic de-icing process. The method comprises the following steps that firstly, a pole tower is located; secondly, meteorological data of the place where the pole tower is located are extracted; thirdly, the increasing amount of icing thickness is calculated according to the meteorological data; fourthly, the de-icing thickness is calculated by judging the heat exchange amount of ice and air and heat needed in the de-icing process; fifthly, an icing thickness forecasting value is the increasing amount of the icing thickness minus the de-icing thickness. The pole tower is located, the meteorological data of the place where the pole tower is located are extracted, the increasing amount of the icing thickness and the de-icing thickness are calculated, the icing thickness forecasting value is calculated finally, natural de-icing is fully considered, the difference from actual measurement is small, and the forecasting effect is ideal.
Description
technical field [0001] The invention relates to a method for predicting the ice thickness of a transmission line, in particular to a method for predicting the ice thickness of a transmission line by introducing a dynamic ice melting process. Background technique [0002] Under the background of global warming, the frequency and intensity of meteorological disasters caused by extreme weather and climate events are increasing. The southern part of my country has been affected by low-temperature, rain, snow and freezing weather for many times. The freezing weather process has a particularly serious impact on the power sector. Icing transmission lines can cause problems such as conductor galloping, tower tilting, collapse, disconnection, and insulator flashover. The equipment and its operation have catastrophic effects, and at the same time, it brings many inconveniences to people's daily life. Many countries in the world have conducted different studies on wire icing, which can...
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Inventor 唐红兵苏华英李崇浩李树山滕小羽李肖雅陈婷婷
Owner CHINA SOUTHERN POWER GRID COMPANY