Wind turbine generator set spindle temperature early-warning method and device

A technology for wind turbines and main shafts, which is applied to wind turbines, wind turbine monitoring, engines, etc., can solve problems such as increasing the cost of the turbine and achieve the effect of ensuring safety.

Active Publication Date: 2020-08-28
GUODIAN UNITED POWER TECH
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the monitoring / diagnosis of the running state of the main shaft is mostly based on the analysis of vibration signals. The monitoring method based on vibration signals needs to install additional vibration sensors on the wind turbine, which increases the cost of the 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
  • Wind turbine generator set spindle temperature early-warning method and device
  • Wind turbine generator set spindle temperature early-warning method and device
  • Wind turbine generator set spindle temperature early-warning method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0020] The invention provides a temperature early warning method for a main shaft of a wind turbine. figure 1 A flow chart of the temperature early warning method for the main shaft of the wind turbine is shown. see figure 1 , wind turbine main shaft temperature early warning methods include:

[0021] S11: Collect unit operation data.

[0022] Select two normal operating units in the same wind farm, and collect the operating data of the unit with length N. The data sampling frequency is preferably 1 Hz, not less than 0.1 Hz, and the sampling period k>0.5 years. The operation data includes wind speed Ws, power P and spindle temperature T.

[0023] S12: Eliminate ...

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 wind turbine generator set spindle temperature early-warning method and system. The method comprises the steps that temperature data of a wind turbine generator set is collected; the temperature data is segmented; the segmented temperature data is subjected to envelope analysis, so that a data envelope of the temperature data is extracted; and according to the extracted data envelope, the health state of the wind turbine generator set is predicted. Through the wind turbine generator set spindle temperature early-warning method and system, the health state of spindle running of the wind turbine generator set can be monitored in real time, and the running safety of the set can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method and device for early warning of the temperature of a main shaft of a wind turbine. Background technique [0002] The main shaft is one of the core parts in the wind turbine, and the processing cycle is long and expensive. As a high-load rotating component in the wind turbine, the main shaft often suffers from overheating due to friction and wear. Long-term operation under overtemperature conditions will cause accelerated fatigue and failure of the component, resulting in the failure of the wind turbine to work normally. Therefore, for high-value parts such as spindles, it is very necessary to monitor their running health status in real time. [0003] In the prior art, the monitoring / diagnosis of the running state of the main shaft is mostly based on the analysis of vibration signals, and the monitoring method based on vibration signals needs to install add...

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): F03D17/00
CPCF03D17/00
Inventor 谢法袁凌潘磊王晓丹杜雯陈文超王千蔺雪峰姜德旭
Owner GUODIAN UNITED POWER TECH
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