Prediction method of power system affected by disasters based on improved ahp-anti-entropy weight

A technology of power system and prediction method, applied in the field of power transmission and distribution network, can solve the problems of lack of quantitative analysis and decision-making method, impact, and inability to quantitatively evaluate the rationality of disaster-resistant power grid planning scheme.

Active Publication Date: 2017-07-14
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, the analytic hierarchy process needs to be manually determined when determining the relative importance of the evaluation object and when finally determining the weight of each index, which is largely affected by human subjective factors.
However, the current relevant technical regulations focus on the quantification of line design standards, and fail to put forward the requirements for the design of power grid operation mode under major natural disasters from a system perspective, and cannot quantitatively evaluate the rationality of disaster-resistant power grid planning schemes; Some literature research focuses on qualitative demonstration of differentiated planning ideas, lacking quantitative analysis and decision-making methods

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  • Prediction method of power system affected by disasters based on improved ahp-anti-entropy weight
  • Prediction method of power system affected by disasters based on improved ahp-anti-entropy weight
  • Prediction method of power system affected by disasters based on improved ahp-anti-entropy weight

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Embodiment Construction

[0070] An embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0071] In the embodiment of the present invention, based on the improved AHP-anti-entropy weight prediction method for power system affected by disasters, the method flow chart is as follows figure 1 shown, including the following steps:

[0072] Step 1. Determine the type of disaster in the predicted area;

[0073] In the embodiment of the present invention, the distribution network in region A is selected as the evaluation object of the impact of natural disasters on the power system;

[0074] The winter in this area is long and cold, the cold period is long, and the average maximum temperature is below 0°C. Therefore, the impact of ice and snow disasters on the power system should be considered. When the icing reaches a certain thickness, under the action of a certain wind force and wind direction, the lines in the tuyeres are easy to move, result...

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Abstract

The invention relates to a method for predicting the influence of disasters to a power system based on an improved AHP-anti-entropy weight, and belongs to the field of power transmission and distribution grids. To overcome the defect that the existing evaluation method is too subjective, further improvement is made in the invention. Thus, the method of the invention adapts to actual evaluation and horizontal comparison on influences of natural disasters to grids in various districts, can be adopted to analyze the advantages and disadvantages of development of the grids and find out the weak links of the grids, is a good guide to future grid planning and strong grid establishing, enhances the power supply reliability of the power system, especially the power supply reliability of the power system under the condition of disasters, and improves the investment income of the grids.

Description

technical field [0001] The invention belongs to the field of transmission and distribution networks, and in particular relates to a method for predicting the impact of disasters on power systems based on improved AHP-anti-entropy weights. Background technique [0002] At present, some scholars have done some research on the impact of meteorological conditions on the operation status of the power system; analyzed the impact of 7 natural disasters on China's power system, and analyzed from the research types of the literature, the geographical distribution of the research objects, and the popularity of the research. Statistical analysis was carried out from four angles of disaster and disaster solutions, and various countermeasures for natural disasters in China's power system were summarized. But this is only to provide a reference for the transformation of China's power system and the construction of a disaster-resistant power grid. Or consider the three aspects of stabilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/00G06Q10/04G06Q50/06
Inventor 郭昆亚刘鑫蕊冯喜强孙秋野刘文娟李悦悦王洋韩金洋付倩张化光杨珺陈清淼
Owner STATE GRID CORP OF CHINA
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