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Mirror field energy distribution balancing method of heliostats

An energy distribution, heliostat technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to adapt to heliostat tracking errors

Active Publication Date: 2013-01-16
ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a heliostat mirror field energy distribution equalization method that can adapt to different error distributions within a certain range, so as to overcome the defect that the existing heliostat mirror field energy distribution equalization method cannot adapt to the heliostat tracking error

Method used

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  • Mirror field energy distribution balancing method of heliostats
  • Mirror field energy distribution balancing method of heliostats
  • Mirror field energy distribution balancing method of heliostats

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Embodiment

[0042] see Figure 1-Figure 10 ,in:

[0043] figure 1 It illustrates that in the tower solar thermal power generation system, the heliostat 1 in the heliostat field rotates on two degrees of freedom to perform positioning and tracking according to the given target point and the position of the sun, and reflects the sunlight to absorb heat. Receiver 2 on the receiving surface.

[0044] The following combination Figure 2-Figure 6 The specific flow of energy distribution using the method provided by the embodiment of the present invention is described:

[0045] Step S001, according to the heliostat tracking error distribution rule, establish a heliostat tracking error probability mathematical model;

[0046] Such as figure 2 As shown, in this embodiment, the distribution law of the tracking error of the heliostat takes the normal distribution as an example, and the process of this step is as follows: Set the target point as C(x 1 ,y 1 ), due to the existence of the helio...

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Abstract

The invention discloses a mirror field energy distribution balancing method of heliostats. The method comprises the following steps of: establishing a heliostat tracking error probability mathematical model according to a heliostat tracking error distribution law; deriving a probability density distribution function of a single target point, and establishing an optimization algorithm model; and iteratively optimizing by using an optimization algorithm according to a principle that the occurrence probability of light spots which are formed by each heliostat at any point of a heat absorber is equal, positioning target points, and determining the heliostat which corresponds to each target point. The mirror field energy distribution balancing method can be applied to different errors in a certain range, the target points are optimized and adjusted, high mirror field energy utilization rate is ensured, and energy flux density distribution on the heat absorber is balanced.

Description

technical field [0001] The invention relates to the field of tower-type solar thermal power generation, in particular to a method for balancing the energy distribution of a heliostat mirror field. Background technique [0002] In the field of tower-type solar thermal power generation, a large number of heliostats are used to gather sunlight to the heat absorber of the heat-absorbing tower, heat the working medium, generate high-temperature and high-pressure steam, and drive the steam turbine generator set to generate electricity. The heliostat field composed of a large number of heliostats is an important part of the tower solar thermal power generation system, which is used to collect and project the scattered solar radiation onto the heat absorber, so as to realize the light-to-heat conversion of the tower solar power plant . [0003] At present, the demonstration and commercial tower power stations that have been built in the world all have large heliostat fields, such a...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 李晓波黄文君付杰徐能项翀
Owner ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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