Calculation method, system and equipment for rotor effective wind speed

Abstract

The present application discloses a method for calculating the effective wind speed of a rotor, which includes: obtaining wind measurement data measured at each measuring point, and preprocessing the wind measurement data to obtain line-of-sight wind speed data; establishing a linear shear wind field model; using The linear shear wind field model calculates the wind field characteristic parameters of the measurement plane where each measuring point is located according to the line-of-sight wind speed data; calculates the effective wind speed of the rotor according to the wind field characteristic parameters of each measurement plane. The effective wind speed of the rotor obtained in the present application is more time-sensitive, and there is no problem of measurement time lag; at the same time, the accuracy of the effective wind speed of the rotor is also greatly improved, which is conducive to the maximum wind energy tracking of wind turbine power generation, and can provide a variable pitch for wind turbines. The control provides reliable control parameters, which is of great significance for reducing the fatigue load and ultimate load of the fan. At the same time, the present application also provides a calculation system, equipment and readable storage medium for the effective wind speed of the rotor, which have the above beneficial effects.

Description

technical field [0001] The present application relates to the field of wind speed calculation, in particular to a method, system, device and readable storage medium for calculating the effective wind speed of a rotor. Background technique [0002] The inherent random fluctuations, intermittency, and vector variability of wind energy are still the main challenges for wind power generation optimization control and grid connection. Accurate rotor effective wind speed measurement has always been a difficulty in the wind power field. Accurate perception of the effective wind speed of the rotor is not only conducive to the maximum wind energy tracking of wind turbine power generation, but also provides reliable control parameters for the pitch control of wind turbines, which is of great significance for reducing the fatigue load and ultimate load of wind turbines. Accurately obtaining the wind direction can reduce the number of misoperations of the yaw system of the wind turbine. ...

AI Technical Summary

Problems solved by technology

[0004] However, there are problems such as low accuracy and measurement time lag in anemometer measurement, which limit the further improvement of wind turbine pitch, power generation, and yaw control performance. Wind power forecasting does not match grid-connected requirements, and forecasting model methods are also affected by wind speed transients and dynamic changes in wind direction

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