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Method for calculating composite index of grid operation based on information source entropy

A power grid operation and comprehensive index technology, applied in the direction of calculation, data processing application, information technology support system, etc., can solve the problems of different information volumes of power grid operators, and achieve the effect of clear physical meaning, small amount of calculation, and simple process

Active Publication Date: 2013-09-18
TSINGHUA UNIV
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Problems solved by technology

[0005] Using this theory to analyze the evaluation indicators in the power grid operation evaluation, it can be found that although each indicator can provide a clear value, depending on the historical change law of the indicator, the amount of information obtained by the grid operator is very different.

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  • Method for calculating composite index of grid operation based on information source entropy
  • Method for calculating composite index of grid operation based on information source entropy
  • Method for calculating composite index of grid operation based on information source entropy

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here can be used to explain the present invention, but not to limit the present invention.

[0018] The calculation method of the power grid operation comprehensive index based on the information source entropy proposed by the present invention, such as figure 1 As shown, the specific process is as follows:

[0019] (1) Select the index item to be evaluated, input the current data of the index from the real-time operation database of the power grid, and input its historical data from the historical database of the power grid;

[0020] Input the basic data of grid operation indicators required by this calculation process to form the calculation information database of this method. The required input data includes both the current data of grid operation indicators and the historical ...

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Abstract

The invention provides a method for calculating composite index of grid operation based on information source entropy. According to the method, historical data of all indexes are subjected to statistics, the change law of the indexes is analyzed, the orderliness and the degree of stability of the historical data of the indexes are reflected by the information source entropy of the indexes, and then, the weight coefficients of the indexes are obtained. The method for calculating the composite index of the grid operation, provided by the invention, is different from the traditional index weight calculation methods which are based on subjective rating, each index entry serves as an independent information source, and the information source entropy of concerned indexes is calculated and serves as a weight calculation basis of the indexes, so that the fluctuation amplitude and the disorderliness of index values can be reflected objectively, and the contribution rate and the distinction degree of the indexes to the composite index of the grid operation are calculated scientifically. The method is simple in flow, small in calculation amount, low in developing difficulty and distinct in physical meaning and has strong practicability.

Description

technical field [0001] The invention relates to the field of power system operation evaluation, and in particular provides a method for calculating a comprehensive index of power grid operation based on information source entropy. Background technique [0002] For a long time, power grid dispatching and operation managers have always hoped to find a scientific and effective method to design a comprehensive index of power grid dispatching operation similar to the stock market index, so as to quantitatively evaluate the overall level of power grid operation and provide a basis for grid operators to evaluate Provide strong support for improving work level, locating work defects, and improving dispatching business. There are a large number of individual evaluation indicators for current grid operation to reflect a certain level of grid operation. The evaluation and analysis of the overall level of power grid operation depends on setting reasonable weight coefficients on the bas...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
CPCY04S10/50
Inventor 夏叶夏清陈启鑫赵翔宇赖晓文康重庆
Owner TSINGHUA UNIV
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