Optimization Design of Tower Solar Heliostat Field Layout of Based on Wheatfield-PSO Model
DOI:
https://doi.org/10.54097/18gat588Keywords:
Tower Solar Heliostat Field, Reverse Projection Box Counting Model, Wheatfield-PSO Model.Abstract
The heliostat field is an important subsystem of the tower solar thermal power station, and the optimal layout of the heliostat field is one of the key issues to be solved in the early stage of the construction of the tower solar thermal power station. Aiming at the optimization of heliostat field layout and related parameters in tower solar thermal power station, this paper presents a heliostat field layout method based on Wheatfield-PSO model, taking the product of the comprehensive optical efficiency of the mirror field and the land coverage of the mirror field as the optimization objective. Based on the basic parameters of heliostat field in Gansu, China, the Reverse Projection Box Counting Model is innovatively established in this paper to calculate each optical efficiency simply and efficiently. Considering the important influence of heliostat size on system performance, this paper sets the size and mounting height of each heliostat to be the same, and seeks other design parameters under this premise. By introducing the optimization design method of the mirror field of the Wheatfield tower solar thermoelectric system, and using the PSO algorithm to solve it, the optimal parameter combination is found to make the annual average output power per unit mirror area reach the maximum value, and the heliostat mirror field layout is designed.
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