Image processing-based heliostat fault diagnosis method and system

Abstract

A method and system for fault diagnosis of heliostats based on image processing, the method further includes: (1) collecting images of heliostats in the same target area, and obtaining at least two two-dimensional images of the same scene; (2) calculating heliostats The actual attitude data; (3) Calculate the theoretical attitude data of the heliostat according to the sun altitude angle, azimuth angle and the relative position between the heliostat and the heat sink at the time of image collection; (4) Compare the actual attitude data of the heliostat with the fixed The theoretical attitude data of the heliostat is used to judge whether the heliostat is a faulty heliostat. Step (2) further includes: using the binocular vision three-dimensional measurement algorithm to calculate the actual attitude of the target heliostat at this moment, and determine the position information and serial number of the heliostat. The invention overcomes the disadvantages of high cost and complicated installation of the traditional closed-loop fault diagnosis method, and realizes the heliostat fault diagnosis automatically, quickly, conveniently and accurately by using computer image processing technology.

Description

field of invention [0001] The present invention generally relates to the field of solar energy, in particular to a heliostat fault diagnosis method and system applied to a tower-type solar thermal power generation system. Background technique [0002] With the development of economy and industry, the demand for energy is increasing, especially electric energy is an indispensable energy in industry and people's life. The traditional power generation mode can no longer meet the needs of industrial and economic development. For this reason, people pay more and more attention to clean and renewable energy, and among many clean energy sources, solar energy is widely used in the fields of power generation and heat generation. In the application of solar power generation, tower solar power generation system is one of the important ways. [0003] Tower-type solar thermal power plant is a complex thermal system, which has the characteristics of strong nonlinearity, large delay, and...

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Problems solved by technology

[0005] The purpose of this invention is to provide a heliostat fault diagnosis method based on image processing to solve the high diagnostic cost and high installation accuracy requirements in the prior art question

[0006] Another object of the present invention is to provide a heliostat fault diagnosis system based on image processing to solve the problem of high diagnosis cost and high installation accuracy in the prior art technical issues

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