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Power grid operation assessment method for realizing multilayer indicator system

An indicator system, a technology for power grid operation, applied in complex mathematical operations, information technology support systems, instruments, etc.

Inactive Publication Date: 2016-09-14
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it also poses serious challenges to the safe operation of the power grid.

Method used

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  • Power grid operation assessment method for realizing multilayer indicator system
  • Power grid operation assessment method for realizing multilayer indicator system
  • Power grid operation assessment method for realizing multilayer indicator system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In step one, figure 2 is a schematic diagram of the structure of the index hierarchical model. When evaluating the index system with multi-level analysis algorithms, the problem must be organized and hierarchical to construct a hierarchical structural model. On the basis of in-depth analysis of practical problems, the relevant factors are decomposed into several levels from top to bottom according to different attributes. The factors of the same level are subordinate to the factors of the upper level or have an influence on the factors of the upper level, and at the same time dominate the lower level. Layer factors or are affected by lower layer factors. The top layer is the target layer, usually only one factor, the bottom layer is usually the program or object layer, and there can be one or several layers in the middle, usually the criterion or index layer. When there are too many criteria, the sub-criteria layer should be further decomposed, such as figure 2 show...

Embodiment 2

[0062] The method of the present invention also preferably includes step 6 using a fuzzy analysis method to determine the factor domain of the evaluation index, obtain a fuzzy relationship matrix from the factor domain to the evaluation level of the state of the factor, and calculate the index evaluation value (that is, the quantitative value).

[0063] Qualitative analysis is carried out according to different classifications of indicators. The evaluation criteria need to be given qualitatively, and fuzzy matching is carried out according to the correlation between the set evaluation criteria and the evaluated object, and the matrix formed by this matching relationship is called the fuzzy evaluation matrix. When conducting qualitative analysis, the vector formed by the evaluation results obtained according to the evaluation standard is the standard value of the index. U={u 1 ,u 2 ,...,u n} are n kinds of indicators of the evaluated object, V={v 1 ,v 2 ,...v p} is the p ...

Embodiment 3

[0075] image 3 is a schematic diagram of the multi-level index system model of the power grid, aiming at image 3 The power grid operation index system in the present invention adopts the power grid operation evaluation method of the middle and multi-layer index system to realize the comprehensive evaluation of the power grid operation under the index system.

[0076] Build an indicator analysis system, analyze the attributes of the program-level indicators item by item, and determine qualitative indicators and quantitative indicators. Build the evaluation and judgment matrix layer by layer from the bottom to the top of the index system. According to the formula (1), the importance of each index in the index judgment matrix is ​​judged in pairs. Through the formula (5), the weight vector of each index is obtained. In order to ensure that the The objectivity of the weight distribution is judged according to formula (3). When the judgment result is less than 0.10, the judgment...

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Abstract

The invention provides a power grid operation assessment method for realizing a multilayer indicator system. The method comprises the following steps that step one, a multilayer indicator hierarchical model is established; step two, an evaluation and judgment matrix is constructed layer by layer; step three, the weight of each indicator is calculated by adopting a geometrical analysis method; step four, the consistency of the evaluation indicator judgment matrix is judged; and step five, the weight result of all layers is combined, and qualitative indicators and quantitative indicators required by a scheme layer are determined. Multilayer three-dimensional assessment is performed on the power grid operation process by the method so that the assessment result is more accurate. The method adopts a scientific analytical algorithm so that comprehensive and objective analysis and assessment of the multilayer indicator system can be realized, reconstruction of power grid operation can be realized and high efficiency and safety of power grid operation can be enhanced.

Description

technical field [0001] The invention relates to the technical field of electric power system scheduling automation, in particular to a power grid operation evaluation method for realizing a multi-level index system. Background technique [0002] With the rapid development of social economy and the increase of electricity consumption, the safe operation of power grid has become more and more important. The nationwide closely connected network, high-efficiency large-capacity units (groups), and the adoption of ultra-high voltage levels have improved the quality and efficiency of electric energy. But it also brings severe challenges to the safe operation of the power grid. In the increasingly large grid composition, any link may threaten the safe operation of the grid. In order to ensure the safe operation of the grid, various departments and professions will formulate relevant operation, management and economic indicators to restrict the reasonable operation of the grid. The...

Claims

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Application Information

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IPC IPC(8): G06Q50/06G06Q10/06G06F17/16
CPCG06F17/16G06Q10/0639G06Q50/06Y04S10/50
Inventor 阎博王刚王东升白静洁郭子明刘琪张昊张晓武江张岩舒力于勇超
Owner STATE GRID CORP OF CHINA
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