Variable-speed feathering shutdown method and device and wind turbine generator set

A technology of wind turbines and shutdown devices, which is applied to wind power generation, machines/engines, engines, etc., and can solve problems such as poor load reduction effects of wind turbines

Active Publication Date: 2019-08-30
SANY ELECTRIC CO LTD
View PDF11 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing variable-rate feathering shutdown scheme uses fixed time or pitch angle position as

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
  • Variable-speed feathering shutdown method and device and wind turbine generator set
  • Variable-speed feathering shutdown method and device and wind turbine generator set
  • Variable-speed feathering shutdown method and device and wind turbine generator set

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be described clearly and completely in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work s...

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 provides a variable-speed feathering shutdown method and device and a wind turbine generator set, and relates to the technical field of wind turbine generator set feathering shutdown. The wind turbine generator set comprises a generator and a cabin, wherein the generator is installed in the cabin. The method comprises the steps that the shutdown feathering speed of the wind turbine generator set is changed from an initial first shutdown feathering speed to a second shutdown feathering speed according to the rotating speed of the generator and the acceleration of the cabin, wherein the first shutdown feathering speed is determined by the pitch angle at the initial moment of the wind turbine generator set, and the second shutdown feathering speed is determined by the pitch angle at the current moment of the wind turbine generator set; the shutdown feathering speed of the wind turbine generator set is changed from the second shutdown feathering speed to a third shutdown feathering speed according to the rotating speed and power of the generator, and feathering and shutdown are completed at the third shutdown feathering speed. Through the method, the device can enable thewind turbine generator set to have a good load reduction effect in the shutdown process.

Description

technical field [0001] The present application relates to the technical field of feathering shutdown of wind turbines, in particular, to a variable speed feathering shutdown method, device and wind turbines. Background technique [0002] In order to reduce the load of the wind turbine during shutdown, a variable-speed feathering shutdown scheme is often used to control the shutdown of the wind turbine. However, the existing variable-rate feathering shutdown scheme uses fixed time or pitch angle position as the conversion condition of variable rate, which makes the load reduction effect of wind turbines not good. Contents of the invention [0003] The purpose of the present application is to provide a variable-speed feathering shutdown method, device and wind turbine, which can make the wind turbine have a good load reduction effect during shutdown. [0004] In order to achieve the above purpose, the technical solution adopted in the embodiment of the present application i...

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
IPC IPC(8): F03D7/00
CPCF03D7/00F05D2270/304F05D2270/335Y02E10/72
Inventor 高坤杜佳佳刘晓男
Owner SANY ELECTRIC 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