Tower solar mirror field shadow and shielding efficiency improvement algorithm

A technology of tower solar energy and improved algorithm, which is applied in the field of improved algorithm of tower solar mirror field shadow and shading efficiency, which can solve the problems of large errors and achieve the effect of optimized layout and low cost

Inactive Publication Date: 2018-02-16
HUANENG CLEAN ENERGY RES INST
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Problems solved by technology

In the traditional flat-panel projection model, for a denser mirror field, some heliostats that will produce shado

Method used

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  • Tower solar mirror field shadow and shielding efficiency improvement algorithm
  • Tower solar mirror field shadow and shielding efficiency improvement algorithm
  • Tower solar mirror field shadow and shielding efficiency improvement algorithm

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[0038] The present invention will be described in detail below in conjunction with the drawings.

[0039] figure 1 It is a flowchart of an improved algorithm for the shadow and occlusion efficiency of the tower solar mirror field according to the present invention.

[0040] Such as figure 1 As shown, an improved algorithm for tower solar field shadow and occlusion efficiency includes the following steps:

[0041] Step S1, establishing a pre-judgment model for the improved shadow and occlusion algorithm;

[0042] Step S2, obtaining the prediction accuracy of the pre-judgment model;

[0043] Step S3, using Monte Carlo ray tracing model to obtain shadow and occlusion efficiency;

[0044] In the specific embodiment of the present invention, the specific implementation of step S1 is:

[0045] Assume that the problem heliostat is heliostat 2, and the heliostat that will shadow or block the problem heliostat is heliostat 1. Using ray tracing, the projection position of the shadow or occlusion h...

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Abstract

The invention discloses a tower solar mirror field shadow and shielding efficiency improvement algorithm. By building a shadow and shielding improvement algorithm prejudgment model, a region which generates a shadow or shielding is predicted; in combination with a Monte Carlo ray tracing model, the mirror field shadow and shielding efficiency is calculated in the shadow or shielding region; and through actual power station data, the correctness of the prejudgment model and the improvement algorithm is verified, so that a good theoretical basis is provided for further optimization and arrangement of efficient and low-cost mirror fields.

Description

technical field [0001] The invention relates to photothermal power generation technology, in particular to an improved algorithm for tower-type solar mirror field shadow and shading efficiency. Background technique [0002] Today's environmental situation is becoming increasingly tense, extreme weather such as smog and coal rain emerges one after another, and energy conservation and emission reduction standards in various industries are increasing. As a clean energy source, the contribution of solar thermal power plants to the environment is worthy of attention. Tower-type solar thermal power generation technology has become the main direction of large-scale application in the photothermal industry in the future due to its advantages such as high heat collection efficiency, high thermal conversion efficiency, high overall system efficiency, large space for cost reduction, more energy saving and environmental protection, and suitable for large-scale applications. . However, ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20Y02E40/70
Inventor 张茂龙吕海生江建忠肖平
Owner HUANENG CLEAN ENERGY RES INST
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