Focus adjustment and performance optimization method of tower mirror field heliostat

Abstract

The invention discloses a focus adjustment and performance optimization method of a tower-type mirror field heliostat. Including: the steps of spot fitting on the reflective mirror surface, statistical analysis of the light quantity on the heat absorber, contribution analysis, and system optimization. According to the optical parameters of the reflective mirror, the concentrating effect of the reflective mirror is fitted, and the fitting and evaluation of the overall concentrating facula are carried out through the fitted facula, and then the distribution of concentrating facula is adjusted through the reverse adjustment of the concentrating lens. Uniformity and hot spots are adjusted and avoided to solve the problems of uneven light spots and hot spots that cannot be solved by existing technologies.

Description

Technical field [0001] The invention relates to the field of photothermal technology, in particular to a method for focusing adjustment and performance optimization of a tower lens field heliostat. Background technique [0002] Currently, CSP power generation projects are more and more favored by the world. Some countries and regions such as Israel, Spain, Morocco have completed the construction of a number of large-scale CSP power generation projects such as tower molten salt and tower Breton. Including trough type, dish type, Fresnel type and tower type, many solar thermal projects have been built or are being launched. The energy conversion equipment of these projects is without exception a mirror field composed of heliostats. The efficiency of the system that provides energy from the mirror field to generate electricity is largely affected by the focused spot reflected by the mirror field. The size of the spot and its energy flow density are the most critical indicators here....

AI Technical Summary

Problems solved by technology

[0007] The purpose of this application is to fit the concentrating effect of the transmitting mirror through the optical parameters of the reflecting mirror, and carry out the fitting and evaluation of the overall converging facula through the fitted facula, and then through the reverse adjustment of the concentrating lens Adjust and avoid the uniformity and hot spots of the concentrated light spots, and solve the problems of uneven light spots and hot spots that cannot be solved by the existing technology

Images