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Correlation analysis method for key parameters and environmental factors of power transmission line icing growth model

A technology of environmental factors and growth models, applied in complex mathematical operations, data processing applications, instruments, etc., can solve the problem that the linear addition model cannot reflect the nonlinear effects of environmental factors

Pending Publication Date: 2020-11-20
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

The specific mathematical relationship between the key parameters of icing growth on transmission lines and environmental factors is uncertain, and the traditional linear addition model cannot reflect the nonlinear effects of environmental factors; Mathematical relationship of multiple environmental factors

Method used

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  • Correlation analysis method for key parameters and environmental factors of power transmission line icing growth model
  • Correlation analysis method for key parameters and environmental factors of power transmission line icing growth model
  • Correlation analysis method for key parameters and environmental factors of power transmission line icing growth model

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Embodiment Construction

[0051] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0052] This embodiment provides a correlation analysis method between key parameters of the transmission line icing growth model and environmental factors, and the steps are as follows:

[0053] (1) Select the terminal data of the transmission line, take wind speed, wind direction, ambient temperature and air liquid water content as independent variables, and take collision coefficient and freezing coefficient as dependent variables.

[0054] Specifically, the key parameters of the transmission line icing growth model are taken as dependent variables, including the collision coefficient α ...

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Abstract

The invention discloses a correlation analysis method for key parameters and environmental factors of an icing growth model of a power transmission line. The method defines a collision coefficient anda freezing coefficient of conductor icing as the key parameters of the icing growth model, and comprises steps of selecting terminal data, and determining an independent variable and a dependent variable; environment factors (wind speed, wind direction, environment temperature and air liquid water content) being taken as independent variables, and a collision coefficient and a freezing coefficient being taken as dependent variables; respectively establishing generalized additive models GAM of the collision coefficient, the freezing coefficient and the environmental factors; solving a generalized additive model of the collision coefficient and the freezing coefficient, measuring fitting superiority of the statistical model through a red pool information criterion, and selecting an optimalgeneralized additive model; and analyzing the correlation between the key parameters of the icing growth model and the environmental factors according to the result of the GAM model and the statistical parameters of the GAM model. According to the method, the mathematical relationship between the icing growth key parameters and a plurality of environmental factors can be determined, and the nonlinear effect of the environmental factors is reflected.

Description

technical field [0001] The invention relates to the field of icing prediction of transmission lines, in particular to a correlation analysis method between key parameters of a transmission line icing growth model and environmental factors. Background technique [0002] The reliability of transmission lines is extremely important to the safe and stable operation of the power grid. Under dry climate conditions, the safety performance of conductors is very high; when the ambient temperature is low and the weather conditions are very harsh, ice coating will form on the surface of the conductors, which will cause a series of ice coating accidents. The specific mathematical relationship between the key parameters of icing growth on transmission lines and environmental factors is uncertain, and the traditional linear addition model cannot reflect the nonlinear effects of environmental factors; Mathematical relationship of multiple environmental factors. The generalized additive m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06F17/18G06Q50/06
CPCG06Q10/06393G06Q50/06G06F17/18
Inventor 阳林念路鹏郝艳捧胡智浩李立浧
Owner SOUTH CHINA UNIV OF TECH
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