Wind turbine wake dissipation device

Abstract

The invention relates to a wind turbine wake dissipation device which is fixed to the rear of a cabin of a wind turbine through a fixing support. The dissipation device includes a thin-wall cylinder main body, the thin-wall cylinder main body is evenly divided into a plurality of square spaces and a plurality of irregular spaces through plate-shaped supports orthorhombic with each other, wake pipes are mounted in the spaces evenly separated by the plate-shaped supports, the wake pipes in the square spaces are cylindrical, the wake pipes in the irregular spaces are similarly cylindrical, a plurality of air guide wings are mounted in the wake pipes, gaps are formed between the wake pipes and the thin-wall cylinder main body and between the wake pipes and the plate-shaped supports, a conicalflow guide cover is mounted at the position of a gap air inlet, and an air gathering cover is disposed on one side of an air inlet of the thin-wall cylinder main body and along the thin-wall cylindermain body. According to the wake dissipation device, by reducing the influence of disordered wake on downstream wind turbines, the arrangement distance between the wind power plant wind turbines is shortened, and the land utilization rate of a wind power plant is improved.

Description

technical field [0001] The invention relates to a wind turbine wake dissipating device, in particular to a cylindrical device capable of changing the trajectory of the wake and accelerating the wake dissipation. Background technique [0002] In recent years, in wind farms where a large number of wind turbines gather, wind power manufacturers often hope to install as many wind turbines as possible within a limited range in order to increase power generation. At this time, it is necessary to consider how to arrange the location of wind turbines and determine the appropriate Wind turbine spacing, the wake effect is a crucial factor in determining the wind turbine spacing. [0003] According to aerodynamic theory, when a wind turbine is in the wake of other wind turbines, the wake effect will reduce the efficiency of the wind turbine to capture wind energy, and its power generation will be greatly affected. Some studies have shown that the structure of the wind turbine Fatigue ...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the researches are focused on the passive optimization of wind turbine wakes, such as wind farm site selection method considering wake flow, wind turbine arrangement optimization method considering wake flow, etc.; the arrangement of wind turbines in wind farms can only be According to the relevant standards and specifications, the wind turbine spacing is reasonably determined in combination with the capacity of the unit and the terrain, and there is no method or device to actively deal with the wake

Images