Method for tracking and controlling optimum tip speed ratio of wind power generation unit

A wind turbine, blade tip speed ratio technology, applied in the control of wind turbines, wind turbines, engine control parameters and other directions, can solve problems such as difficulty

Active Publication Date: 2013-08-14
NARI TECH CO LTD
View PDF5 Cites 48 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some Class A wind fields with high wind speed and turbulence, it is more difficult to use this method to correct the power curve

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
  • Method for tracking and controlling optimum tip speed ratio of wind power generation unit
  • Method for tracking and controlling optimum tip speed ratio of wind power generation unit
  • Method for tracking and controlling optimum tip speed ratio of wind power generation unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0021] (1) Calculate the exact generator power value through the feedback torque and speed, and calculate the wind speed through the power factor corresponding to the optimal blade tip speed ratio.

[0022] (2) When the speed can be adjusted, adjust the speed to make the fan run at the best tip speed ratio state. If the speed cannot be adjusted, adjust the pitch angle to make the fan run at the best tip speed ratio state.

[0023] (3) The statistical average hill-climbin...

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 belongs to the technical field of source network coordination and relates to a method for enabling a fan operating at a low speed to be adjusted to operate at an optimum tip speed ratio and simultaneously and automatically correcting the optimum tip speed ratio regularly. The method includes the following steps: calculating an accurate power value of a power generator according to feedback torque and rotating speed; calculating wind speed according to power factors corresponding to the power and the optimum tip speed ratio; when the rotating speed can be adjusted, adjusting the rotating speed to enable the fan to operate in an optimum tip speed ratio state; when the rotating speed cannot be adjusted, adjusting a pitch angle to enable the fan to operate in an optimum tip speed ratio state; and adopting a statistical average hill-climbing method to correct the optimum tip speed ratio corresponding to a minimum pitch angle. By adopting the method, problems of existing methods are solved.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a method for tracking and controlling the optimal blade tip speed ratio of a wind power generating set. Background technique [0002] The maximum power tracking of the wind turbine refers to below the rated wind speed, by adjusting the speed of the wind rotor to make it change with the change of the wind speed, so as to keep the wind turbine at the best blade tip speed ratio and keep the wind energy utilization coefficient at the maximum value, the method to obtain the maximum power output. [0003] Maximum wind power tracking (MPPT) is the core issue of wind power generation, but the characteristics of wind power tracking are determined by wind turbines. Therefore, no matter what kind of wind turbine, the idea of ​​wind energy tracking is the same. At present, the commonly used maximum wind energy tracking control mainly includes the optimal tip speed ratio method, the pow...

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): F03D7/00
CPCY02E10/723F03D7/022F03D7/0284F05B2270/32Y02E10/72
Inventor 邬昌明邵宜祥王长宝王文卓胡丽萍曾雨竹蔡国洋
Owner NARI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap