Automatic fault diagnosis method of offshore wind power generation set

Abstract

The invention discloses an automatic fault diagnosis method of an offshore wind power generation set. The method comprises the following steps: sensors of items to be monitored are mounted on an offshore wind turbine structure to be diagnosed; signals extracted by the sensors are preprocessed, and useless or disturbance signals in the extracted signals are removed; the specific data analysis is performed for the preprocessed signals to eliminate the false and retain the true; amplitudes obtained by data analysis of the signals are compared with a fault threshold set for data analysis for analysis to determine if the wind turbine structure occurs faults; and corresponding dealing measures are adopted according to the fault conditions. The method can perform instant alarm for the operating state of the offshore wind power generation set, fault analysis and prediction and alarm for potential faults, and achieves important value on reduction of sudden faults of the wind power generation set and reduction of unnecessary loss.

Description

technical field [0001] The invention relates to a fault diagnosis method, in particular to an automatic fault diagnosis method for an offshore wind turbine. Background technique [0002] Faults during the operation of wind turbines are one of the keys that affect the benefits of wind power operating companies. Generally speaking, the operation failure of wind turbines is the key factor that determines whether the wind turbine can operate stably for a long time, and its mechanism is complex and involves many factors. At present, the operation and maintenance of wind farms mainly use the monitoring of the main control system of the unit and regular inspections to understand the operating status of the unit. Due to the large amount of information that constitutes the operating status of the accessories, the calculation and processing process is complex, especially for the processing of massive data obtained at high sampling frequency, which requires a certain period of time; a...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of the prior art, to provide an automatic fault diagnosis method for offshore wind turbines, using wireless sensor data communication network, combined with advanced computer information technology, to solve the real-time fault alarm of the prior art and system For untimely problems, realize the trend analysis and fault warning of the operation status of offshore wind turbines

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