Unlock instant, AI-driven research and patent intelligence for your innovation.

Dynamic assessment method and device for operation state of wind power plant unit and electronic equipment

A technology for operating status and dynamic assessment, which is applied in the fields of instrumentation, data processing applications, forecasting, etc., and can solve problems such as real-time dynamic assessment of the operating status of wind farm units.

Inactive Publication Date: 2019-04-19
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a dynamic evaluation method, device and electronic equipment for the operating state of the wind farm unit, aiming to solve the problem that the existing technology cannot accurately and efficiently perform real-time dynamic evaluation of the operating state of the wind farm unit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dynamic assessment method and device for operation state of wind power plant unit and electronic equipment
  • Dynamic assessment method and device for operation state of wind power plant unit and electronic equipment
  • Dynamic assessment method and device for operation state of wind power plant unit and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] figure 1 It shows the implementation flow of the dynamic evaluation method for the operating state of the wind farm unit provided in the first embodiment of the present invention. The dynamic evaluation method for the operating state of the wind farm unit provided in the first embodiment can be used in various electronic devices such as computers and servers. For ease of description, only the parts related to the embodiments of the present invention are shown, and the details are as follows:

[0054] Step S110, preprocessing the operating data of the wind farm unit to obtain a data matrix.

[0055] The embodiments of the present invention are applicable to electronic devices such as computers and servers, and processors are installed in these electronic devices to dynamically evaluate the operating status of wind farm units.

[0056] Operational data refers to various data generated during the operation of wind farm units, such as temperature, power, pressure and other...

Embodiment 2

[0098] image 3 It shows the block diagram of the dynamic evaluation device of the wind farm operating state provided by the second embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, including:

[0099] A preprocessing module 110, configured to preprocess the operating data of the wind farm unit to obtain a data matrix;

[0100] Dynamic augmentation matrix calculation module 120, for constructing the dynamic augmentation matrix of described data matrix according to target time lag length;

[0101] Covariance matrix calculation module 130, for calculating the covariance matrix of described dynamic augmentation matrix by principal component analysis method;

[0102] The principal component contribution rate calculation module 140 is used to calculate the principal component contribution rate according to the eigenvalue and eigenvector of the covariance matrix, and select the princ...

Embodiment 3

[0106] Embodiment 3 is an embodiment of the principal component analysis results of the dynamic evaluation method for the operating state of wind farm units provided by the present invention.

[0107] (1) Selection of principal components

[0108] Calculate the contribution rate of the principal components, such as Figure 4 As shown, the cumulative contribution rate of the first five principal components reaches about 85%, which contains enough information, so the number of principal components is selected as five.

[0109] (2) Analysis of principal component score scatter plot and covariance matrix eigenvalue bar chart

[0110] In the analysis stage, the division of the working conditions of the data is completed, and the working conditions are divided into three types, and the scores of the first principal component and the third principal component of the three working conditions are drawn respectively, as shown in Figure 5(a) , 5(b) , 5(c) shown. It can be clearly se...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention is applicable to the technical field of wind power plant unit state evaluation, and provides a wind power plant unit operation state dynamic evaluation method and device, and electronicequipment, and the method comprises the steps: preprocessing the operation data of a wind power plant unit to obtain a data matrix; Constructing a dynamic augmented matrix of the data matrix accordingto the target time lag length; Calculating a covariance matrix of the dynamic augmented matrix through a principal component analysis method; Calculating a principal component contribution rate according to the characteristic value and the characteristic vector of the covariance matrix, and selecting a principal component; And judging the operation state of the wind power plant unit through the principal component. Therefore, by applying the principal component analysis method to the dynamic process and analyzing the dynamic relationship between variables in the operation data of the wind power plant unit according to the target time lag length, the operation state of the wind power plant unit can be more accurately and efficiently evaluated in real time.

Description

technical field [0001] The invention belongs to the technical field of status evaluation of wind farm units, and in particular relates to a dynamic evaluation method, device and electronic equipment for the operating status of wind farm units. Background technique [0002] With the development of economy and society, energy contradictions in countries all over the world are becoming increasingly prominent. Wind energy is characterized by safety, cleanliness, abundance, and stability. The use of wind energy will effectively alleviate the contradiction between supply and demand of resources and reduce the degree of environmental pollution. In recent years, my country's research and investment in wind power has entered a new stage of development. However, with the rapid development of wind power technology, the failure and damage accidents of wind farm units are also increasing year by year. Wind farm units are generally located in remote areas with harsh environments, and it...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q10/04G06Q50/06
CPCG06Q10/04G06Q10/0639G06Q50/06
Inventor 郭媛君杨之乐于建强朱俊丞王颖
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI