A method and system for wind optimization of wind turbines based on vibration and inclination

Abstract

The present invention relates to a method and system for wind optimization of a fan based on vibration and inclination. The optimization method has the following steps: S1 uses an inclination sensor to monitor the inclination angle projected by the deflection of the fan tower in the x-axis or y-axis direction when the wind speed is stable θ, so as to judge the wind direction; S2 uses the vibration sensor to monitor the components of the vibration amplitude of the fan tower projected on the x-axis and y-axis when the wind speed is unstable, so that the wind direction can be obtained according to the vector synthesis; S3 feeds back the identified wind direction data to The wind turbine yaw system, the wind turbine yaw system makes a judgment, adjusts the position of the blades, and realizes the wind optimization of the wind turbine. The optimization system includes a data acquisition module, a wireless transmission module and a communication module; the optimization system also includes a sensor group, and the sensor group includes a tilt sensor and a vibration sensor. The invention utilizes the vibration and inclination angle generated during the operation of the fan tower to identify and calibrate the wind direction, and has the characteristics of low cost, high performance, high reliability and the like.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a method and system for wind optimization of a fan based on vibration and inclination. Background technique [0002] In the actual situation of wind turbine operation, the measurement of the wind direction in the yaw system is mainly done through the wind vane, which is easily affected by the environment and installation errors during the operation of the wind turbine, and its installation position is at the tail of the nacelle, which is inevitably affected by the wind vane. The turbulence of the flow makes it impossible to accurately measure the wind direction, resulting in the wind turbine yaw system being unable to accurately face the wind; and some wind farms are affected by problems such as frequent changes in wind direction, large wind direction changes, and turbulence in the wind field, making it more difficult to measure the wind . These objecti...

AI Technical Summary

Problems solved by technology

Although in recent years, some practitioners and experts have studied various algorithms to correct the wind direction of wind turbines and verified the effectiveness of using the historical data of SCADA system to correct the wind direction, but due to the complexity of the operating environment of wind turbines, there are deviations in data collection. Moreover, the operating conditions of the wind turbines considered by the algorithm are relatively ideal, and the data used are not comprehensive, resulting in poor generalization performance of the algorithm and cannot be applied to every wind turbine.

Images