Wind power plant output power optimization method and device and realization device

Abstract

The invention provides a wind power plant output power optimization method and device and a realization device. The method comprises the following steps of: obtaining a wind speed, a wind direction and arrangement information of wind turbine generators in a wind power plant; determining an input wind speed of each wind turbine generator according to the wind speed, the wind direction, the arrangement information and a pre-established corresponding relationship among input wind speeds, pitch angles and thrust coefficients of the wind turbine generators; determining total output power of the wind power plant according to the corresponding relationship among the input wind speeds, pitch angles and thrust coefficients of the wind turbine generators; and determining a pitch angle of each wind turbine generator corresponding to the maximum value of the total output power by taking the pitch angle or thrust coefficient of each wind turbine generator as an adjustment parameter and taking the total output power as a target function, and sending the pitch angle to a corresponding wind turbine generator. According to the wind power plant output power optimization method and device and the realization device, the maximization of output power of wind power plants can be realized, the wind energy loss caused by wake flow influences between the wind power plants is decreased and the total generation capacities of the wind power plants are improved.

Description

technical field [0001] The present invention relates to the technical field of wind farm optimization, in particular to a wind farm output optimization method, device and implementation device. Background technique [0002] At present, the existing wind farm optimization method that takes into account the wake effect is mainly to allocate the wind power of the wind farm, that is, to take into account the mutual influence of wind turbines when making power prediction, so as to achieve the optimal power allocation strategy ; Since this optimization method only involves power distribution and does not reduce the interaction between wind turbines, for example, the wake effect, it is difficult to maximize the output power of the wind farm. Contents of the invention [0003] In view of this, the object of the present invention is to provide a wind farm output optimization method, device and implementation device to reduce the wind energy loss caused by the wake effect between wi...

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Problems solved by technology

[0002] At present, the existing wind farm optimization method that takes into account the wake effect is mainly to allocate the wind power of the wind farm, that is, to take into account the mutual influence of wind turbines when making power prediction, so as to achieve the optimal power allocation strategy ; Since this optimization method only involves power distribution and does not reduce the interaction between wind turbines, such as the wake effect, it is difficult to maximize the output power of the wind farm

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