Method for detecting surface wind pressure of heliostat group

Abstract

The embodiment of the invention provides a method for detecting the surface wind pressure of a heliostat group. The method comprises the steps: dividing the heliostat group into initial model blocks,and building a corresponding flow field model through the initial model blocks; dividing the flow field model into grids in different forms through a preset grid division method; elevation angle dataof the heliostat group and the incoming flow wind direction of the flow field model are acquired; obtaining an initial wind speed at an entrance of the flow field model, and calculating a wind speed profile map at the entrance of the flow field model through the initial wind speed; and calculating the wind speed profile map, the elevation angle data, the incoming flow wind direction and the division situation of the grids through a preset calculation method to obtain wind pressure data of each grid in the flow field model, and determining the surface wind pressure of the heliostat group through the wind pressure data. By adopting the method, a method for detecting the wind pressure on the surface of the heliostat in the heliostat group can be provided.

Description

technical field [0001] The invention relates to the technical field of heliostats, in particular to a method for detecting wind pressure on the surface of a heliostat group. Background technique [0002] The heliostat reflects sunlight to the energy storage equipment on the tower for power generation, and the tower heliostat field is a concentrating system composed of hundreds or thousands of heliostats. Each heliostat located in the mirror field has an independent tracking control device, through which the sun can be continuously tracked and the sunlight can be reflected to the heat collector on the top of the tower. At present, the layout methods of tower heliostat fields are as follows: circular staggered arrangement and circular non-staggered arrangement, fan-shaped staggered arrangement and fan-shaped non-staggered arrangement, parallel staggered arrangement and parallel non-staggered arrangement, etc. [0003] In recent years, most studies on the wind resistance of he...

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Problems solved by technology

[0003] In recent years, most studies on the wind resistance of heliostats have focused on a single heliostat, and no recommended values ​​have been given for the heliostats in a group of heliostats. It is not suitable to use heliostats to study the load distribution on the surface of all heliostats in the mirror group, so there is an urgent need for a detection method that can detect the wind pressure in the heliostat group

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