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Method for evaluating economic performance of power plant

An evaluation method and technology of power plants, applied in the direction of instruments, data processing applications, calculations, etc., can solve problems such as lack of economic performance of power plants

Inactive Publication Date: 2014-04-30
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

[0005] In order to solve the technical problem of the lack of scientific evaluation of the economic performance of power plants in the prior art, the present invention provides a method for evaluating the economic performance of power plants, which can make scientific evaluations of the economic performance of power plants

Method used

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  • Method for evaluating economic performance of power plant
  • Method for evaluating economic performance of power plant
  • Method for evaluating economic performance of power plant

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Embodiment Construction

[0018] The steps of the method of the present invention include:

[0019] Establish a comprehensive index system for power plant economic performance evaluation, which is mainly divided into three parts: power plant economic operation index, power plant thermal economic performance index and energy saving and emission reduction index;

[0020] Establish an extension matter-element model for the economic performance evaluation of power plants, and divide the economic performance of power plants into four grades: excellent, good, general and poor, so as to establish the classical domain and node domain models of the evaluation system;

[0021] Use the theory of entropy value method to realize the determination of the weight of each index in the evaluation index system;

[0022] Combining the established matter-element model and the weight of the entropy method to calculate the extension correlation between each index and each level, complete the extension identification of the p...

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Abstract

The invention discloses a method for evaluating the economic performance of a power plant. The method includes the first step of collecting scoring data of economic performance indexes, the second step of using the economic performance of the power plant as a matter-element to be evaluated, converting the indexes to characteristics of the matter-element to be evaluated and using a matter-element model to describe the economic performance of the power plant, the third step of establishing a classic domain model of the economic performance matter-element to describe demand intervals of the economic performance indexes with respect to quantity value ranges of various category levels, the fourth step of establishing a section domain model of the economic performance matter-element to describe scoring ranges of the economic performance indexes, the fifth step of calculating the correlation degrees between the economic performance indexes and the various category levels according to a primary correlation function, the sixth step of determining weighting coefficients of the economic performance indexes, and the seventh step of calculating the correlation degrees between the economic performance and the various category levels through a weighting summation mode, and judging the level that the economic performance of the power plant belongs to according to the maximum value of the correlation degrees. Through the method, the economic performance of the power plant can be scientifically evaluated.

Description

technical field [0001] The invention relates to the field of performance evaluation, in particular to a method for evaluating the economic performance of a power plant. Background technique [0002] The power plant is the core part of the entire power system, and its performance directly affects whether the power grid can operate safely and stably. In order to further improve the energy saving and emission reduction management level of the system, and continuously improve the competitiveness, profitability and sustainable development ability of power generation enterprises, it is necessary to make a reasonable evaluation of the economic performance of power plants. [0003] Economic evaluation can provide an important basis for minimizing or avoiding engineering project decision-making mistakes, and can effectively improve the economic benefits of power generation enterprises' engineering projects. However, due to the existence of some uncertain factors in the evaluation pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 廖宏楷陈世和潘凤萍史玲玲任娟娟陈华忠张曦叶向前罗嘉王建军冯志刚
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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