Photovoltaic photothermal coupling heliostat mirror structure and heliostat with adjustable reflection area

Abstract

The invention relates to a photovoltaic photothermal coupling heliostat mirror structure with adjustable reflection area and the heliostat, wherein the mirror structure includes a driving motor, a mirror driving wheel, a mirror driven wheel, a mirror driving belt, a flexible reflecting surface and a flexible photovoltaic panel , the mirror drive wheel is driven and connected with the drive motor, and the flexible reflective surface and the flexible photovoltaic panel are attached to the outer surface of the mirror drive belt. The invention adjusts the reflective area of ​​the heliostat by driving the mirror drive wheel to adjust the ratio of the flexible reflective surface on the upper surface of the heliostat to the flexible photovoltaic panel, and can dynamically adjust each surface in real time according to the energy demand of the mirror field in different stages of mirror field operation. The reflective area of ​​the heliostat, while the part other than the reflector of the heliostat mirror is used for photovoltaic power generation. The heliostat mirror with this structure can not only quickly and efficiently realize the energy scheduling requirements of the mirror field, but also fundamentally Solve the problem of light abandonment in the mirror field, improve the photoelectric conversion efficiency of the power station, and then improve the economic benefits of the power station.

Description

technical field [0001] The invention relates to a heliostat structural component in the field of solar thermal power generation, in particular to a photovoltaic photothermal coupling heliostat mirror structure and a heliostat with an adjustable reflection area. 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 ...

AI Technical Summary

Problems solved by technology

In the energy dispatching of the mirror field, not only the operation of the heliostat needs to be frequently controlled, but also a more serious problem is that when the target point of the heliostat is set to a safe position other than the heat sink during the energy dispatching process, on the one hand, As a result, the reflected light spot of the heliostat hits the air without being effectively used, resulting in the discarded light of the mirror field. On the other hand, if the design is not proper, the light spot removed from the heat absorber is easy to cause light pollution, which not only greatly affects the photoelectric efficiency of the mirror field, In turn, it will affect the economic benefits of the entire project, and there are potential environmental problems that need to be resolved urgently

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