Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Equivalence method of direct-drive-type wind turbine generator wind power plant

A technology of wind turbine and equivalent method, applied in the field of value, can solve the problem that the accuracy of the algorithm cannot be guaranteed, increase the data scale, and affect the speed and convergence of the algorithm.

Inactive Publication Date: 2013-05-08
NINGXIA ELECTRIC POWER RES INST +2
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the calculation of large-scale interconnected grids, if a detailed wind farm model is used, that is, to model each wind turbine, the scale of data will be increased, which will affect the speed and convergence of the algorithm, and the validity of the model will not be guaranteed
If the entire wind farm is equivalent to a wind turbine, the accuracy of the algorithm will not be guaranteed

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
  • Equivalence method of direct-drive-type wind turbine generator wind power plant
  • Equivalence method of direct-drive-type wind turbine generator wind power plant
  • Equivalence method of direct-drive-type wind turbine generator wind power plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0233] The electromechanical transient model of the direct-drive wind turbine was built in the User-Defined Model (UD) of the advanced digital power simulation system (ADPSS).

[0234] In the all-digital simulation device ADPSS, a calculation example including 16 direct-drive wind turbines is built. Each wind turbine is connected by cables of different lengths, and the wind speed of each wind turbine is different to simulate the wake effect of the wind farm. Figure 6 shown.

[0235] Table 2 shows the detailed electrical parameters of the wind farm, including generator parameters, cable parameters, wind farm machine-end transformer and main transformer parameters. Table 3 shows the length of the collection line of the wind farm; Table 4 shows the initial high wind speed parameters of each wind turbine in the wind farm; Table 5 shows the initial low wind speed parameters of each wind turbine in the wind farm.

[0236] Table 2 Detailed electrical parameters of the wind farm

...

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 relates to an equivalence method of a direct-drive-type wind turbine generator wind power plant. The equivalence method includes the following steps: direct-drive-type wind turbine generators are clustered, equivalence is carried out on dynamic parameters of the direct-drive-type wind turbine generators in a capacity weighing mode, equivalence is carried out on electricity collection circuits of the direct-drive-type wind turbine generator wind power plant, and simulation is carried out on the direct-drive-type wind turbine generators. The equivalence method defines the clustering index of operation characteristics of the direct-drive-type wind turbine generators, and clustering is carried out through a clustering algorithm. Equivalence is carried out on wind turbine parameters of the wind turbine generators of the same cluster through invariance of power switching characteristics of a wind turbine of an equivalent machine and a single wind turbine generator, static equivalence is carried out on the electricity collection circuits of the wind power plant due to the fact that the sum of output power of wind turbine generators which are equalized is equal to the output power of the equivalent machine, and a model reference self-adaptive algorithm is applied to recognize impedance parameters of a permanent magnet motor of the equivalent machine. The operation characteristics of grid connection points of the wind power plant before and after equivalence are consistent, and the equivalence algorithm accurately reflects the grid connection characteristics of the direct-drive-type wind turbine generator wind power plant.

Description

technical field [0001] The invention relates to an equivalent method of a direct-drive wind turbine, in particular to a wind farm equivalent method of a direct-drive wind turbine. Background technique [0002] Wind farms are usually composed of wind turbines of the same type. In the calculation of large-scale interconnected grids, if a detailed wind farm model is used, that is, to model each wind turbine, the scale of data will be increased, which will affect the speed and convergence of the algorithm, and the validity of the model will not be guaranteed . If the entire wind farm is equivalent to a wind turbine, the accuracy of the algorithm will not be guaranteed. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides a wind farm equivalent method for direct-drive wind turbines. The equivalent method defines clustering indicators that can reflect the operating characteristics of direct-drive wind turbines. The win...

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): H02J3/38
CPCY02E10/763Y02E10/76
Inventor 高峰郑伟杰贺文黄永宁胡晓波田蓓张爽张星梁剑孙丽香焦龙刘敏訾鹏
Owner NINGXIA ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com