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Power grid rainstorm disaster long-term prediction method, device and system

A prediction method and technology of a prediction device, which are applied in the field of power grids, can solve problems such as long-term flooding of power facilities, tripping of power grid lines, tilting of transmission towers, etc., and achieve the effect of long-term prediction.

Inactive Publication Date: 2020-11-13
STATE GRID HUNAN ELECTRIC POWER +2
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Problems solved by technology

[0002] Power grid rainstorm disasters will bring a large amount of precipitation in a short period of time, causing important power facilities such as tower bases and substations to be flooded for a long time, causing tripping of power grid lines and damage to important power equipment; it is easy to cause secondary disasters such as floods and landslides, resulting in power transmission The tilting and falling of the tower will cause a large-scale power outage in severe cases

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  • Power grid rainstorm disaster long-term prediction method, device and system
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  • Power grid rainstorm disaster long-term prediction method, device and system

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[0049] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0050] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

[0051] figure 1 It is a schematic flowchart of the long-term prediction method for power grid rainstorm disaster provided by the embodiment of the present disclosure. The long-term prediction method of power grid rainstorm disaster is applicable to the situation of long-term prediction of power...

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Abstract

The invention relates to a power grid rainstorm disaster long-term prediction method, device and system. The method comprises the steps that historical power grid rainfall data sequences of N months before a to-be-measured month of a target area are selected, and N is larger than or equal to 4; decomposing the historical power grid precipitation data sequence into J power grid precipitation data sequences in different modes through wavelet decomposition, where J is an integer part of log2N; predicting the power grid rainfall data sequence under each mode through an autoregressive moving average model; and restoring the power grid rainfall data sequence under each mode into the power grid rainfall prediction data sequence of the month to be measured through wavelet reconstruction. Accordingto the embodiment of the invention, wavelet decomposition, autoregressive moving average operation and wavelet reconstruction are carried out on the historical power grid rainfall data sequence of Nmonths before the month to be measured, and the power grid rainfall prediction data sequence is generated, so that long-term prediction of the power grid rainstorm disaster is realized.

Description

technical field [0001] The present disclosure relates to the technical field of power grids, in particular to a method, device and system for long-term forecasting of power grid rainstorm disasters. Background technique [0002] Power grid rainstorm disasters will bring a large amount of precipitation in a short period of time, causing important power facilities such as tower bases and substations to be flooded for a long time, causing tripping of power grid lines and damage to important power equipment; it is easy to cause secondary disasters such as floods and landslides, resulting in power transmission The tilting and falling of towers will cause large-scale power outages in severe cases. Summer rainstorms are not only an important hidden danger to the safe operation of the power grid, but also a key factor in the economic and safe operation of hydropower. The longer the forecast time in advance, the more adequate the response to rainstorm disasters. Long-term forecasting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06G06Q50/26
CPCG06Q10/04G06Q50/06G06Q50/26
Inventor 简洲叶钰徐勋建郭俊李丽
Owner STATE GRID HUNAN ELECTRIC POWER
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