Heliostat field arrangement method based on combination of maximum density arrangement and bionic arrangement

A technology with maximum density and layout method, applied in solar thermal power generation, lighting and heating equipment, solar collector controller, etc.

Active Publication Date: 2019-05-24
POWERCHINA XIBEI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the advantages and scope of application of various mainstream methods are different, and there are many difficulties in the efficiency calculation of the tower heliostat field and the determination of the field coordinates

Method used

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  • Heliostat field arrangement method based on combination of maximum density arrangement and bionic arrangement
  • Heliostat field arrangement method based on combination of maximum density arrangement and bionic arrangement
  • Heliostat field arrangement method based on combination of maximum density arrangement and bionic arrangement

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Experimental program
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Effect test

Embodiment 1

[0055] according to Figure 1-Figure 6 The shown method of heliostat field arrangement based on the combination of maximum density arrangement and bionic arrangement includes the following steps

[0056] Step 1: Determine the dense layout area

[0057] The minimum center distance required for cleaning and operation of heliostats is defined as DM. This is the basic requirement. The adjacent heliostats are equilateral triangles, and the side length of the equilateral triangles is greater than or equal to DM; Equilateral triangles are arranged in columns or rows, and the layout area plan is obtained;

[0058] Step 2: Calculate the number of heliostats that can be arranged in dense areas

[0059] In the dense arrangement area determined in step 1, according to the maximum density arrangement method, calculate the number of heliostats that can be arranged in the dense area;

[0060] Step 3: Calculate the number of heliostats arranged in the external mirror field

[0061] Subtract the number...

Embodiment 2

[0124] The invention combines the overall optical efficiency and other indicators of a 50mw tower solar thermal project. Table 1 shows the relevant details.

[0125] Table 1 Comparison table of various mirror field parameters

[0126]

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PUM

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Abstract

The invention belongs to the technical field of mirror field optimization of tower-type solar thermal power generation systems, and particularly relates to a heliostat field arrangement method based on combination of maximum density arrangement and bionic arrangement. The heliostat field arrangement method includes the six steps that an intensive arrangement area is determined; the number of heliostats capable of being arranged at the dense area is calculated; the number of heliostats arranged in an external mirror field is calculated; the coordinates of the heliostats in the external mirror field are calculated; the total mirror field efficiency is calculated; and a mirror field is laid; and at the near-field area with the high cosine efficiency and the high atmospheric attenuation efficiency, under the premise of meeting the requirements of cleaning and operation and maintenance, the heliostats can be arranged as much as possible at the efficient area. According to the heliostat field arrangement method based on combination of maximum density arrangement and bionic arrangement, an improved bionic arrangement method is adopted in a far field, and under the condition that the landuse range and the number of the heliostats are determined, the efficiency of shadow shielding among the heliostats in the area reaches the highest through bionics arrangement; and a gradient descent method is used for optimizing boundary optimization between a near-tower area and a far-tower area, the overall efficiency of a condensation and heat collection field reaches the highest.

Description

Technical field [0001] The invention belongs to the technical field of mirror field optimization of a tower solar thermal power generation system. In particular, it relates to a heliostat field arrangement method based on a combination of maximum density arrangement and bionic arrangement. Background technique [0002] Solar thermal utilization technology is one of the technologies with a high degree of commercialization and popularization and application in the field of renewable energy technology. Tower solar thermal power generation system is an important direction of solar thermal utilization. In the tower solar thermal power generation system, the reasonable arrangement of the collector mirror field can improve the light-to-heat conversion efficiency of the system while reducing the land use area and the amount of wires and cables, thereby reducing investment. However, the current various mainstream methods have different advantages and scope of application, and there are m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24S50/20
CPCY02E10/47
Inventor 周治肖斌彭怀午王晓文龙陈鹏飞段杨龙
Owner POWERCHINA XIBEI ENG
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