System and method for measuring and optimizing heliostat efficiency

Abstract

The invention discloses a system and a method for measuring and optimizing heliostat efficiency, and belongs to the field of tower type solar thermal power generation. The method comprises the following steps: generating a heliostat efficiency detection queue in a heliostat field; measuring the reflectivity, the solar direct radiation energy and the atmospheric extinction coefficient of a to-be-detected heliostat; setting an aiming point of the to-be-detected heliostat as a target light target, and driving the to-be-detected heliostat to rotate to a set position; collecting a light spot imageprojected to the target light target by the to-be-detected heliostat and mirror surface images under different exposure values; calculating the length and width of the light spot and the tracking precision of the light spot quality center and the geometric center of the light target, obtaining the mirror surface condensation intensity distribution, and calculating the condensation efficiency of the to-be-detected heliostat; calculating the efficiency of the to-be-detected heliostat; and re-optimizing and re-sequencing the heliostat efficiency detection queue, and continuously carrying out efficiency measurement and optimization on the heliostats in the heliostat field. According to the technical scheme, operation is easy, and the effect and precision are high.

Description

technical field [0001] The invention relates to the field of tower solar thermal power generation, in particular to a system and method for measuring and optimizing the efficiency of a heliostat. Background technique [0002] While the economy continues to develop, energy is increasingly in short supply, traditional non-renewable energy is increasingly exhausted, and economic development is increasingly constrained by the development and utilization of energy. The utilization of renewable energy has attracted widespread attention, especially the utilization of solar energy has attracted more attention from the world. [0003] Solar thermal power generation is a major way of utilizing solar energy at present. The current solar thermal power generation can be divided into (1) tower solar thermal power generation; (2) trough solar thermal power generation; (3) dish solar thermal power generation according to the way of solar energy collection. [0004] In the field of solar th...

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Problems solved by technology

[0007] In order to solve the above problems, the present invention provides a system and method for optimizing the efficiency of heliostats, so as to solve the problems of mutual interference, repeated work, and low efficiency of various optimization measures in the current efficiency optimization process of heliostats, and solve the problems of current heliostat efficiency optimization. Insufficient Accuracy of Heliomirror Efficiency Measurement Results

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