Automatic focusing system used for regulating solar condensing lens and focusing method thereof

Abstract

The invention discloses an automatic focusing system used for regulating a solar condensing lens and a focusing method of the automatic focusing system. The automatic focusing system comprises image display equipment, image collection equipment and image data processing equipment, wherein the image collection equipment is used for collecting data of images reflected by reflectors; the image display equipment is used for displaying display images which are controlled to be output by the image data processing equipment; the image data processing equipment is used for controlling the image display equipment to output the display images corresponding to region areas of the reflectors of a condensing system in a one-to-one mode, the display image of the region area of any one reflector and display images of region areas on the peripheries of the reflectors are different color images, and the image collection equipment is controlled to perform analysis and processing and output corresponding focusing data after collecting the corresponding images. According to the automatic focusing system, the inclination angle is judged by observing the image colors of the reflectors, the color ratios of discs are calculated and are compared with a pre-stored empirical data base, regulating efficiency is improved substantially, and the regulating time is shortened.

Description

technical field [0001] The invention belongs to the field of solar thermal power generation, and in particular relates to an automatic focusing system and a focusing method for adjusting solar concentrating lenses. Background technique [0002] In the existing field of solar thermal power generation, it mainly includes three types of power generation methods: trough type, tower type, and dish type. The principle is to use concentrating reflective lenses to convert light into heat energy and further convert electric energy. Realize solar power generation. [0003] Since the solar energy itself is relatively scattered, in order to obtain greater energy, a large light-gathering area is required. Due to the limitation of processing and cost, it usually adopts the design method of splicing multiple groups of small reflective lenses into a large curved surface. In the actual assembly process, adjust the angle and position of the small reflective lens so that it can meet the desi...

AI Technical Summary

Problems solved by technology

[0007] ①. Severely restricted by the weather, since it can only be carried out in the presence of the sun, if it encounters continuous rainy days, the focus cannot be adjusted, resulting in low efficiency

[0008] ② Higher requirements on the concentrating system, and there are potential safety hazards at the same time

Since the angle of the sun changes in real time, during the adjustment process, the concentrating system must be able to track the sun with high precision at all times. If there is an angle deviation, it will directly cause adjustment errors

At the same time, due to the real-time changes of the concentrating system, there are also great potential safety hazards when personnel make adjustments later.

[0009] ③. The quality of the focused spot cannot be judged, and there may be local hot spots

[0011] ①. Due to the far distance of the observation point, the adjustment personnel cannot directly observe the image reflected by the concentrator system, and other personnel are required to observe and give feedback. At the same time, it is difficult to judge the direction and adjustment of the reflector through the observed image. The amount of additional personnel is increased, and the adjustment efficiency is also greatly reduced.

[0012] ②. This method has very high precision in theory. In the actual adjustment process, due to the surface error of the mirror, the observed image usually does not completely correspond to the image on the display, but is a kind of reflection with other reflections. The image corresponding to the mirror is mixed. In this case, human judgment is required, which reduces the adjustment accuracy.

[0013] The above two methods are limited by their own weaknesses, and it is difficult to be applied in the actual concentrating system with higher and higher requirements.

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