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Wind turbine and method for evaluating health status of blades thereon

A technology of wind turbines and blades, which is applied in the control of wind turbines, the monitoring of wind turbines, and wind turbines, etc. It can solve the problems of high cost and complicated parameter monitoring, and achieve the effect of simple structure and improved accuracy

Active Publication Date: 2015-05-06
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since different types of sensors need to be installed at the same time in various parts of the wind turbine, sometimes two or more types of sensors need to be installed at the same time in a certain position, which will cause problems such as complicated parameter monitoring and high cost

Method used

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  • Wind turbine and method for evaluating health status of blades thereon
  • Wind turbine and method for evaluating health status of blades thereon
  • Wind turbine and method for evaluating health status of blades thereon

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Embodiment Construction

[0029] Specific implementations of the present invention will be described below. It should be noted that in the process of specific descriptions of these implementations, for the sake of concise description, it is impossible for this specification to describe all the features of the actual implementations in detail. It should be understood that, in the actual implementation process of any embodiment, just like in the process of any engineering project or design project, in order to achieve the developer's specific goals and to meet system-related or business-related constraints, Often a variety of specific decisions are made, and this can vary from one implementation to another. In addition, it will be appreciated that while such development efforts may be complex and lengthy, the technology disclosed in this disclosure will be Some design, manufacturing or production changes based on the content are just conventional technical means, and should not be interpreted as insuffic...

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Abstract

The present invention relates to a wind turbine (10), which includes a plurality of blades (141, 142, 143), a micro inertial measurement unit (20), and a monitoring system (303). The micro inertial measurement unit (20) is installed on each blade (141, 142, 143), and is configured to sense a plurality of detection parameter signals at corresponding installation positions. The monitoring system (303) is configured to monitor an operating state of the plurality of blades (141, 142, 143), and the monitoring system (303) includes a signal processing unit (305), a signal analyzing unit (307), and a fault evaluating unit (309). The signal processing unit (305) obtains a processing parameter signal through calculation based on the plurality of detection parameter signals (313). The signal analyzing unit (307) analyzes each analysis parameter signal to obtain a fault estimation signal. The analysis parameter signal is selected from the plurality of detection parameter signals (313) and the processing parameter signal, and each fault estimation signal is used to estimate whether a corresponding blade works in a fault state. The fault evaluating unit (309) is configured to evaluate, based on a plurality of fault estimation signals, whether a corresponding blade fails or a probability that the corresponding blade fails. The present invention further discloses a method (1000) for evaluating a health state of a wind turbine blade (10).

Description

technical field [0001] The present invention relates to wind turbines, and more particularly to a method of assessing the state of health of blades thereon. Background technique [0002] As a clean energy, wind energy is widely used in the field of power generation. Wind turbines are commonly used to convert wind energy into electricity. However, wind turbines usually operate in remote areas and in harsh environments, especially affected by freezing, dust, and strong winds. Wind turbines are prone to failures such as blade cracks, blade sticking, blade strain, blade icing, and overload. Therefore, in order to prolong the operating life of the wind turbine, it is necessary to perform regular inspection and maintenance on the wind turbine to prevent potential failures. However, on the one hand, the cost of manual maintenance is high, and on the other hand, the reliability of fault detection is not high. Real-time monitoring of the blade parameter signals of the wind turbine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D9/00F03D7/00G01M13/00
CPCF05B2270/334F05B2270/80F05B2270/807F03D17/00Y02E10/72G01L3/02G01M15/14G01P3/00
Inventor 付旭吴之林邱海
Owner GENERAL ELECTRIC CO
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