Heliostat tracking control device and heliostat tracking control method

Abstract

The invention discloses a heliostat tracking control device. The heliostat tracking control device comprises a heliostat facula calibration apparatus, a heliostat controller, a superior controller, an acceleration transducer and an incremental encoder; the heliostat facula calibration apparatus is connected with the superior controller and the heliostat controller by a heliostat field network; the superior controller is connected with the heliostat controller by a heliostat field network; the heliostat controller is in communication connection with the acceleration transducer and the incremental encoder; the acceleration transducer is attached on the backside of a mirror; the incremental encoder is disposed on the end of a rotary decelerator worm on the azimuth direction; a motor is disposed on the head of the rotary decelerator worm; and the output end of the heliostat controller is connected with the motor. The device disclosed by the invention reduces the cost of a heliostat controlling system effectively, can be installed and maintained easily, can utilize resources reasonably, and can correct the absolute errors in heliostat tracking process, thereby improving the heliostat tracking precision.

Description

technical field [0001] The invention relates to a heliostat tracking control device and a tracking control method thereof, belonging to the technical field of heliostat control. Background technique [0002] At present, with the increasing shortage of fossil energy sources such as coal, oil, and natural gas, and the increasingly prominent environmental problems, new clean energy sources such as solar energy, wind energy, and biomass energy have attracted more and more attention. Tower solar thermal power generation technology is one of the main forms of power generation in solar thermal power generation. The basic principle is: use the mirror field composed of many heliostats to reflect sunlight to the heat collector on the top of the tower, heat the working fluid in the heat collector, and then the working fluid will go through heat storage, heat exchange and other links. Generate steam to drive a turbo generator to generate electricity. [0003] Among them, the functio...

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Problems solved by technology

[0009] The object of the present invention is to provide a heliostat tracking control device and its tracking control method, to solve the problem that the existing heliostat tracking control system uses absolute encoders and magnetic stripe sensors as detection units, which are not only expensive but also inconvenient to use. , and the absolute deviation of the displacement generated by the encoder relative to the earth coordinate system is relatively large, which can effectively solve the problems existing in the above-mentioned prior art

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