Generator rear bearing temperature fault prediction method, system and controller

Abstract

The invention provides a generator rear bearing temperature fault prediction method and system and a controller, and the method comprises the steps: obtaining the data of fan operation state parameters, and enabling the data to comprise historical data and current data; acquiring state parameters related to the temperature of the rear bearing of the generator according to the data; utilizing the state parameters to construct a generator rear bearing temperature prediction model based on an SVR model and / or a generator rear bearing temperature alarm fault remaining time prediction model based on the SVR model; and predicting the temperature of the rear bearing of the generator and / or the temperature alarm fault remaining time of the rear bearing of the generator. The method can accurately predict the temperature of the rear bearing of the generator and the remaining time of the temperature alarm fault of the rear bearing of the generator, thereby providing guidance suggestions and helpfor on-site engineers to take effective and reasonable protection measures.

Description

technical field [0001] The invention relates to the technical field of fault prediction of mechanical equipment, in particular to the technical field of temperature fault prediction of a rear bearing of a fan generator, specifically a method, system and controller for a temperature fault prediction of a rear bearing of a generator. Background technique [0002] Generators are one of the key components of wind turbines. Generator system failure maintenance costs account for about 10% of the entire wind turbine health operation and maintenance cost. Generator-related failures are also one of the most important reasons for wind turbine shutdowns, and the average troubleshooting longer time. Therefore, the healthy operation and maintenance of generators is a very important part of the intelligent operation and maintenance of wind turbines. In the process of online condition monitoring of generators, field engineers not only pay attention to the current operating status of the g...

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Problems solved by technology

[0003] In view of the above-mentioned shortcomings of the existing technology, the purpose of the present invention is to provide a method, system and controller for predicting the temperature fault of the rear bearing of the generator, which is used to solve the problem of the low accuracy of the prediction of the temperature fault of the fan rear bearing in the prior art. high problem

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