Environment self-adaptive blade and control method thereof

An adaptive blade technology, which is applied in the control of wind turbines, wind turbines consistent with the wind direction, wind power generation, etc., can solve the problem that a single type of blade cannot meet the needs of various wind speed areas at the same time, so as to facilitate ice breaking and guarantee normal working effect

Active Publication Date: 2021-07-13
HUANENG CLEAN ENERGY RES INST
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an environment-adaptive blade and its control method to solve the technical problem in the prior art that a single type of blade cannot meet the needs of various wind speed regions at the same time

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
  • Environment self-adaptive blade and control method thereof
  • Environment self-adaptive blade and control method thereof
  • Environment self-adaptive blade and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] see figure 1 with figure 2 As shown, the present invention provides an environment-adaptive blade, including: a blade fixed end 41 , a blade movable end 42 , a main shaft fixed end 2001 and a main shaft movable end 2002 .

[0041] One end of the spindle fixed end 2001 is connected to the hub 1, and the other end is slidingly connected to the spindle movable end 2002; the interior of the spindle fixed end 2001 is hollow; the diameter of the spindle fixed end 2001 is larger than the diameter of the spindle movable end 2002; a section of the spindle movable end 2002 is accommodated in the spindle In the fixed end 2001 , the other end is fixedly connected with the movable blade end 42 .

[0042] The outer periphery of the main shaft fixed end 2001 is fixed with a blade fixed end 41 .

[0043] The blade fixed end 41 is provided with an accommodating cavity, which can accommodate part of the blade movable end 42 when the telescopic drive mechanism drives the main shaft mov...

Embodiment 2

[0048] see image 3 with Figure 4 As shown, on the basis of Embodiment 1, an environment-adaptive blade of this embodiment is provided with a wing plate 410 on the edge of the fixed end 41 of the blade; the wing plate 410 is installed on the edge of the fixed end 41 of the blade through a rotating shaft, The rotation of the plate 410 can change the cross-sectional shape of the fixed end 41 of the blade, thereby adapting to different wind conditions.

Embodiment 3

[0050] see Figure 5 As shown, the present invention provides an environment-adaptive blade control method, which can independently determine the blade length and blade shape according to the wind energy quality and wind load at the point where the fan is located, specifically including the following steps:

[0051] S1. The airfoil central control system receives the environmental parameters tested by the environmental perception system in real time: wind speed and ice coverage;

[0052] S2. The blade shape central control system judges the working condition of the blade according to the collected environmental parameters; specifically, it includes: 1), the wind speed exceeding the set first threshold is the limit wind speed condition; 2), the ice thickness exceeding the set ice threshold is serious icing conditions; 3) the rest are non-limit conditions;

[0053] S3. For extreme wind speed conditions, the blade central control system starts the automatic risk avoidance mode, ...

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 discloses an environment self-adaptive blade and a control method. The blade comprises a blade fixed end, a blade movable end, a main shaft fixed end and a main shaft movable end; one end of the main shaft fixed end is connected with a hub, and the other end of the main shaft fixed end is in sliding connection with the main shaft movable end; the main shaft fixed end is hollow; the diameter of the main shaft fixed end is larger than that of the main shaft movable end; one section of the main shaft movable end is contained in the main shaft fixed end, and the other end of the main shaft movable end is fixedly connected with the blade movable end; and the blade fixed end is fixed to the periphery of the main shaft fixed end. According to the environment self-adaptive blade and the control method, the blade movable end is designed, the length of the blade can be changed according to the working condition, and the blade can correspond to different environments; and modular design of the blade is achieved, and the blade in one model can adapt to the wind field conditions of multiple areas.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to an environment adaptive blade and a control method thereof. Background technique [0002] In recent years, with the maturity of wind power technology and industrial chain support, wind turbines have developed towards large-scale power, serialization of platforms, and customization of wind farms, and the installation locations of wind turbines have developed towards low-wind speed areas and offshore wind farms. In order to maximize the use of wind energy resources and reduce the cost of the complete machine, wind turbine complete machine manufacturers have to adopt a platform-based development method, using a platform to match blades of various lengths to meet the requirements of regions with different wind speeds. Short blades can be used in areas with high wind speed, and long blades can be used in areas with low wind speed. For example, the current ma...

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): F03D7/02F03D80/40F03D1/06
CPCF03D7/0236F03D7/0232F03D80/40F03D1/0675F05B2240/221F05B2240/312Y02E10/72
Inventor 李力森蔡安民林伟荣李媛
Owner HUANENG CLEAN ENERGY RES INST
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