Optimizing Optical Efficiency of Heliostat Fields for Rated Thermal Power Output Conditions
In order to promote the realization of the goal of"double carbon",this paper establishes an optimization model of the average output thermal power of the heliostat as the core of light tracing.Firstly,the calculation method of the output thermal power of the heliostat field is proposed.The output thermal power is a function of optical efficiency and other parameters,this paper gives the calculation method of shadow shading efficiency,collector truncation efficiency and other parameters,and the output thermal power of the heliostat field can be obtained by substituting each parameter into the function.Secondly,the optimization scheme of the output thermal power of heliostat field is proposed.For the case of the same specification of heliostat,this paper puts forward the"absorption tower siting strategy"to constrain the location of the absorption tower,puts forward the"concentric circle planning strategy"to complete the arrangement of the heliostat,establishes the optimization model of the output thermal power of heliostat and completes the solution of the optimal parameters with the help of the variable step length search method.The optimization model of thermal power output of heliostat is established,and the solution of optimal parameters is completed by the variable step search method.Finally,for the case of different sizes of heliostats,this paper proposes the"sub-area planning strategy for heliostat sizes",and combines the bifurcation method and the variable step search method to complete the solution of the optimal parameters.