Method for monitoring running state of floating type offshore wind turbine generator

Abstract

The invention provides a method for monitoring the running state of a floating type offshore wind turbine generator. Position and posture monitoring devices are installed at the bottom of a tower drum, inside a cabin and a hub correspondingly, monitoring data are acquired and transmitted to a main control cabinet processor, a cabin cabinet processor and a variable pitch control cabinet processor; and the main control cabinet processor, the cabin cabinet processor and the variable pitch control cabinet processor perform logic judgment according to the monitoring data and execute correction operation in time. According to the provided method for monitoring the running state of the floating type offshore wind turbine generator, state data of a floating type foundation, a cabin and an impeller of the wind turbine generator can be monitored in real time, correction is conducted in time when the state exceeds the preset safety range, and sub-modules in the adopted position and posture monitoring devices are mature in technology, low in cost and convenient to install and implement; and full-automatic processing of acquisition, monitoring and problem correction can be realized.

Description

technical field [0001] The invention relates to a method for monitoring the operating state of a floating offshore wind turbine, and belongs to the technical field of wind turbine monitoring. Background technique [0002] The wind turbine is a device that drives the wind generator to rotate by the impeller turning against the wind, and converts wind energy into mechanical energy and then into electrical energy. During the operation of the wind turbine, it is necessary to adjust the pitch angle and yaw direction of the blades in real time in order to maximize the use of wind energy, increase the hours of power generation, and reduce the load on the main components of the wind turbine. The working environment of wind turbines is harsh. Under the influence of external conditions such as changing wind speed and direction, wind shear, tower shadow effect, turbulence and other external conditions, wind speed and direction sensors, pitch control systems, and main control systems ma...

AI Technical Summary

Problems solved by technology

In addition, offshore wind turbines are far away from the shore, and their maintenance is greatly restricted by environmental conditions such as waves and sea winds, making maintenance difficult

At present, the application of online fault monitoring system in offshore wind turbines is becoming more and more common. The existing online fault monitoring system generally monitors the vibration, strain, crack, temperature, speed and other state parameters of the main components of the wind turbine to feed back whether the wind turbine has However, this monitoring method can only monitor the abnormal data after the main component parameters are abnormal due to certain faults in the wind speed and direction sensing system, pitch system, and main control system. There is a certain lag, and the monitoring results cannot be directly reflected. What is the reason for the abnormal state of the component, and the actual application effect has certain limitations

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