Mirror field dispatching system and method for tower type solar thermal power generation system

Abstract

The invention discloses a mirror field dispatching system and method for a tower type solar thermal power generation system. The system comprises a receiver, a heliostat, a light spot imaging device, a light spot collection device, an image processing device and a mirror field control system for switching or regulating the single mirror state of the heliostat to control the whole mirror field. The method comprises the following steps of: correcting the heliostat successfully installed in the mirror field; verifying the corrected heliostat, judging whether the heliostat is verified or not, and seeking the sun by the verified heliostat; repeatedly correcting an unverified heliostat, and taking the heliostat continuously unverified many times as a fault heliostat, wherein the heliostat during sun seeking is needed to be regularly verified so as to solve the problem that the accuracy is lowered due to long term running of the heliostat. Through scientifically and reasonably dispatching the heliostat, correction, verification as well as fault detection and diagnosis of the heliostat are finished on the premise of ensuring the sun seeking efficiency of the mirror field to the maximum, and safe and efficient operation of the mirror field is ensured.

Description

technical field [0001] The invention relates to the field of solar thermal power generation, in particular to a mirror field scheduling system and method for a tower-type solar thermal power generation system. Background technique [0002] The tower-type solar thermal power generation system uses a heliostat that tracks the sun in real time to reflect sunlight to the heat absorber on the tower, and heats the heat-absorbing working fluid inside to generate high-temperature and high-pressure steam to drive the turbogenerator to generate electricity. [0003] The heliostat field is an important part of the tower solar thermal power generation system, and the heliostat field usually consists of thousands of heliostats. Because the tracking accuracy of the heliostat is affected by external factors and changes in its own mechanical structure, it cannot maintain high precision all the time, and the tracking accuracy of the heliostat will decrease as time goes by, so it is necessary...

AI Technical Summary

Problems solved by technology

Because the tracking accuracy of the heliostat is affected by external factors and changes in its own mechanical structure, it cannot maintain high precision all the time, and the tracking accuracy of the heliostat will decrease as time goes by, so it is necessary to correct the heliostat (correction , that is, use the spot acquisition device to collect solar spot samples on the spot imaging device, and process and analyze them through image processing algorithms, etc., and then continuously reduce the tracking error process), and regularly check the heliostat (check, that is, The process of judging the accuracy of heliostats), but due to the large number of heliostats and different states, calibration and verification are time-consuming and difficult to control. Therefore, how to scientifically schedule the mirror field to ensure the maximum concentration of the mirror field Completing the calibration, verification, and fault detection and diagnosis of heliostats under the premise of efficiency has become an urgent problem to be solved

[0004] Traditional mirror field scheduling methods cannot fully automatically determine and change the status of heliostats, and effectively detect faulty heliostats, and because the scheduling process is complex and cumbersome, time-consuming and laborious, and has low reliability, it has a certain impact on the operating efficiency of the mirror field. influences

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