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Principal component analysis-based pumped storage power station capacity optimal planning method

A pumped-storage power station and capacity optimization technology, which can be used in instruments, data processing applications, forecasting, etc., to solve problems such as ambiguity and inability to give full play to data objectivity

Inactive Publication Date: 2017-09-08
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology

Among them, the entropy weight method has certain limitations when the index value changes greatly or suddenly becomes larger or smaller. The index weight in the fuzzy comprehensive evaluation method is restricted by the knowledge and experience of experts, which is very subjective and cannot Give full play to the objectivity of the data

Method used

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  • Principal component analysis-based pumped storage power station capacity optimal planning method
  • Principal component analysis-based pumped storage power station capacity optimal planning method
  • Principal component analysis-based pumped storage power station capacity optimal planning method

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Embodiment Construction

[0115] The present invention will be further described below using the drawings and examples.

[0116] refer to figure 1 , a method for optimizing the capacity planning of a pumped storage power station based on principal component analysis of the present invention, comprising the following steps:

[0117] 1) Establish a comprehensive evaluation index system for capacity planning of pumped storage power plants

[0118] According to the systemic, scientific and practical principles of setting up the index system, considering the economics and technicality from the perspective of the power grid and the pumped storage power station, a comprehensive evaluation index system for the capacity planning of the pumped storage power station is established;

[0119] The economic indicators are divided into grid economic indicators and pumped storage power station economic indicators. The grid economic indicators include: system coal consumption, system coal saving and sewage discharge co...

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Abstract

The invention is a principal component analysis based capacity optimization planning method for a pumped storage power station, which is characterized in that it includes: establishing a comprehensive evaluation index system for the capacity planning of a pumped storage power station, generating a capacity planning scheme for a pumped storage power station, and constructing a comprehensive evaluation Index matrix, convert the comprehensive evaluation index matrix to the same trend, perform standardized transformation on X′, calculate the correlation coefficient matrix for the comprehensive evaluation index matrix after the standardized transformation, calculate the variance contribution rate and cumulative variance contribution rate of the principal components and select Principal components, calculation of the selected w principal components, calculation of factor loads, comprehensive evaluation of each alternative, and determination of the optimal planning capacity of the pumped storage power station. It has the advantages of scientific and reasonable method, simple and practical, fast calculation speed and higher precision.

Description

technical field [0001] The invention relates to the field of capacity planning of a pumped storage power source in an electric power system, and relates to a capacity optimization planning method of a pumped storage power station based on principal component analysis. Background technique [0002] As the peak-shaving power source of the power system, the pumped-storage power station can provide functions such as peak-shaving, frequency modulation, phase modulation, and emergency backup for the system at a lower cost than conventional units, and has a significant effect on improving the stable operation of the power grid. With the development of society and economy, the load peak-to-valley difference is getting bigger and bigger, which makes it more and more difficult to regulate the peak of the power grid dominated by thermal power, making the capacity planning of pumped storage power plants particularly important. [0003] The existing pumped storage capacity planning model...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06
Inventor 肖白杨宇姜卓
Owner NORTHEAST DIANLI UNIVERSITY
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