Photovoltaic photo-thermal coupling heliostat mirror face structure with adjustable reflection area and heliostat

Abstract

The invention relates to a photovoltaic photo-thermal coupling heliostat mirror face structure with the adjustable reflection area and a heliostat. The mirror face structure comprises a driving motor,a mirror face driving wheel, a mirror face driven wheel, a mirror face transmission belt, a flexible reflecting surface and a flexible photovoltaic panel. The mirror face driving wheel is in driven connection with the driving motor, and the flexible reflecting surface and the flexible photovoltaic panel are attached to the outer surface of the mirror face transmission belt. According to the photovoltaic photo-thermal coupling heliostat mirror face structure, the proportion of the flexible reflecting surface to the flexible photovoltaic panel on the upper surface of the heliostat is adjusted through driving of the mirror face driving wheel so that the reflection area of the heliostat can be adjusted, the reflection areas of all heliostats can be dynamically adjusted in real time at different stages of the mirror field operation according to the mirror field energy requirement, and a part outside a reflector of the mirror face of the heliostat is used for conducting photovoltaic power generation. The heliostat mirror face with the structure is adopted, the requirement for mirror field energy scheduling can be met quickly and efficiently, the problem of abandoned light in the mirrorfield can be fundamentally solved, the photoelectric conversion efficiency of a power station is improved, and then the economic benefits of the power station are improved.

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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