Automatic expert integrated fault diagnosis system and diagnosis method for wind turbine generator system

A technology for wind turbines and comprehensive faults, which is applied in the field of automatic expert comprehensive fault diagnosis systems for wind turbines, and can solve the problems of not being able to point out the cause of the unit's fault, unable to predict a certain fault, etc.

Inactive Publication Date: 2016-11-16
STATE GRID CORP OF CHINA +4
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Problems solved by technology

[0005] In the existing real-time monitoring system of fan operation status, through the analysis and processing of unit vibration and related signals, it can be judged whether the unit operation status is...

Method used

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  • Automatic expert integrated fault diagnosis system and diagnosis method for wind turbine generator system
  • Automatic expert integrated fault diagnosis system and diagnosis method for wind turbine generator system
  • Automatic expert integrated fault diagnosis system and diagnosis method for wind turbine generator system

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Embodiment Construction

[0058] The present invention is described in detail below in conjunction with accompanying drawing:

[0059] Such as figure 1 As shown, an automatic expert comprehensive fault diagnosis system for wind turbines in the present invention mainly includes: a vibration sensor; a main control unit; a data acquisition module; an expert system module; and a man-machine interface module.

[0060] The vibration sensor obtains the vibration signal of the wind turbine, and the data acquisition module collects the vibration signal from the vibration sensor online and obtains the instantaneous power of the wind turbine, the yaw state of the fan, the cabin temperature, wind speed, speed, oil temperature, and propeller angle from the main control unit through the data acquisition program Wait for fan operating parameters.

[0061] The data acquisition module collects the relevant operation and vibration data of the main control unit and the vibration sensor, and sends them to the comprehensi...

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Abstract

The invention discloses an automatic expert comprehensive fault diagnosis system and a diagnosis method of a wind power unit, including: a data acquisition module, which collects relevant data of a main control unit and a vibration signal acquisition unit and transmits it to the fault diagnosis module; a fault diagnosis module, which is comprehensively used Neural network knowledge and expert system module knowledge, use forward reasoning and real-time parameter fluctuation values ​​to compare with the data in the fault sample knowledge base, and generate fault information in real time; the fault diagnosis module will diagnose the fault information through the man-machine Interface module for output. The present invention uses the main control unit to read parameters such as wind turbine instantaneous power, rotational speed, propeller angle, cabin temperature, wind speed, oil temperature, yaw state, etc. to improve the accuracy of fault diagnosis, and utilizes the neural network expert system based on wavelet packet analysis Carry out automatic analysis, and give operation and maintenance suggestions through the expert diagnosis system.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to an automatic expert comprehensive fault diagnosis system and a diagnosis method for a wind turbine. Background technique [0002] With the increasing shortage of conventional energy, the development and utilization of renewable energy will undoubtedly become the main direction of energy development in the future. At present, wind power generation technology has matured, and the installed capacity of wind power continues to expand. By the end of 2015, the installed capacity of wind power in China had exceeded 145.1GW. The focus of the wind power industry. [0003] The working environment of wind turbines is harsh, the wind speed is highly unstable, and the components of the wind turbines are easily damaged. However, the wind turbines are installed in remote mountainous areas and are high above the ground, making maintenance inconvenient. The condition monitoring and...

Claims

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Application Information

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IPC IPC(8): G01R31/34
CPCG01R31/343
Inventor 常文宁阙波胡从川刘卫东杨世东孙大威
Owner STATE GRID CORP OF CHINA
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