A regional power network dispatching operation index evaluation method based on an information entropy theory

A technology for regional power grids and power grid operation, applied in information technology support systems, data processing applications, instruments, etc., to solve problems such as decision makers' preference affecting results, complex calculation processes, and unclear physical meanings of calculation methods.

Inactive Publication Date: 2019-01-25
CENT CHINA BRANCH OF STATE GRID CORP OF CHINA
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Problems solved by technology

[0005] 1. Although the subjective empowerment method is simple, feasible, and easy to operate, it is easily limited by the experience, knowledge, and ability of the decision-maker, and it is very random
The degree of preference of the decision maker can also sometimes affect the outcome
[0006] 2. The calculation process of the traditional objective weighting method is complicated, and the physical meaning of the calculation method is not clear, which is not convenient for engineers to use flexibly in the power grid dispatching operation

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  • A regional power network dispatching operation index evaluation method based on an information entropy theory
  • A regional power network dispatching operation index evaluation method based on an information entropy theory
  • A regional power network dispatching operation index evaluation method based on an information entropy theory

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Embodiment Construction

[0050] The present invention proposes a regional power grid dispatching operation index evaluation method based on information entropy theory, the method includes the following steps:

[0051] 1) Select grid operation indicators and classify them into rigid indicators and flexible indicators, and set corresponding thresholds for each rigid indicator;

[0052] Power grid operation indicators include load forecasting accuracy, maximum value of spinning reserve coefficient, minimum value of spinning reserve coefficient, CPS1 (control behavior standard 1), CPS2 (control behavior standard 2), main grid voltage qualification rate, unit AGC (automatic power generation control) commissioning rate, the maximum value of low-frequency load shedding control capacity commissioning rate, the minimum value of low-frequency load shedding control capacity commissioning rate, frequency over-limit time, maximum frequency, minimum frequency, voltage over-limit time, voltage over-limit plant A tot...

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Abstract

The invention provides a regional power network dispatching operation index evaluation method based on an information entropy theory, belonging to the technical field of power system dispatching evaluation. First, the power system operation indexes are selected and classified into rigidity index and flexibility index, and the corresponding threshold is set for each rigidity index. Type uniformization and dimensionless processing are carried out on each power network operation index; the comprehensive evaluation method of an entropy weight method is used to establish the evaluation matrix. If the rigidity index of any evaluated province exceeds the limit, the weight coefficient is adjusted. Then, after the weight coefficient is adjusted twice, the comprehensive index of dispatching operation level is calculated. The invention can provide an accurate quantification basis for comprehensive level evaluation of power network operation, and is helpful for power network administrators to grasp the operation situation of the power network and provide a reference basis for power network optimization.

Description

technical field [0001] The invention proposes a regional power grid dispatching operation index evaluation method based on information entropy theory, which belongs to the technical field of electric power system dispatching evaluation. Background technique [0002] There are many contradictory indicators in the power grid operation index system, such as safety and environmental indicators, environmental and economic indicators, and so on. Coordinating contradictory indicators in different data themes or indicator subsets requires a scientific and effective indicator evaluation method to comprehensively evaluate the power grid dispatching operation level quantitatively, so as to provide intuitive quantitative standards for evaluating the comprehensive level of power grid dispatching operation management personnel . [0003] Scientific quantitative evaluation methods depend on setting reasonable weight coefficients on the basis of individual indicators. In order to determin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q10/04G06Q50/06
CPCG06Q10/04G06Q10/06393G06Q50/06Y02E40/70Y04S10/50
Inventor 黄海煜李锋熊华强夏少连程燕军赖宏毅黄子平郭齐燕肖华汪洋刘秉祺孙啸天谭毅杰
Owner CENT CHINA BRANCH OF STATE GRID CORP OF CHINA
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