Centralized and remote control monitoring, and fault diagnosis system of wind turbine

Abstract

The invention relates to a centralized and remote control monitoring, and fault diagnosis system of wind turbine. Various sensors sample an original signal from a wind turbine; the signal obtained by the various sensors is converted into a digital signal by a data conversion module and conveyed to a site controller, the data processed is conveyed to a host computer; and two manners including centralizing and remote controlling are included. Accident alerting program software in the computer analytically analyzes and judges testing data, and draws a conclusion to alert an accident; and fault diagnosis specialist program software in the computer analyzes the testing data, draws a diagnosis conclusion and displays the conclusion in text on the display. Online monitoring on comprehensiveness of key parameters of all important parts of the whole wind turbine is realized; the accident alerting program software is used to analyze and judge the testing data to draw a conclusion and alert an accident; and the fault diagnosis specialist program software is used to diagnose operation condition, thereby improving operation safety reliability and service life of a large-sized wind turbine and enhancing the operation quality of a wind turbine.

Description

Centralized and remote monitoring and fault diagnosis system for wind turbines Technical field: The present invention relates to the technical field of wind turbines, more specifically to the technical field of monitoring wind turbines. Background technique: Wind turbines are key equipment in wind farms, and their working conditions are harsh. In order to improve the safety, reliability and service life of large-scale wind turbines, it is very important to research and develop online monitoring and fault diagnosis technologies for wind turbines. At present, variable-speed and variable-pitch control technology is commonly used for foreign MW-level and above units. This technology has matured and is developing in the direction of perfect functions, stable operation, and intelligent technology. In terms of wind turbine modeling, since 1977 foreign researchers have used modeling to analyze and study the mechanical and dynamic characteristics of wind turbines. Since then, f...

AI Technical Summary

Problems solved by technology

Foreign wind turbine fault diagnosis expert systems have developed rapidly. In recent years, fuzzy technology and neural network technology have also been introduced into expert systems to form fuzzy expert systems and data network fault diagnosis expert systems. These models have improved the bottleneck problem of knowledge acquisition, but these models There are also deficiencies, such as redundant fault information processing

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