Photovoltaic thermoelectric power generation device suitable for mountain environment

Abstract

The invention discloses a photovoltaic thermoelectric power generation device suitable for a mountain environment. The photovoltaic temperature difference power generation device comprises a photovoltaic cell panel, a thermoelectric power generation unit and a heat dissipation plate. The thermoelectric power generation unit comprises a plurality of thermoelectric power generation sheets which are distributed at intervals, and each thermoelectric power generation sheet is clamped between the back face of the photovoltaic cell panel and the heat dissipation plate. The two ends of each thermoelectric power generation sheet generate temperature difference under the combined action of the photovoltaic cell panel and the heat dissipation plate. In a mountainous area lacking water resources, the photovoltaic thermoelectric power generation device effectively solves the problem of cooling and heat dissipation of the photovoltaic cell panel, meanwhile, waste heat of the photovoltaic panel is used for power generation by the thermoelectric power generation sheets, electric energy output is additionally increased, and the total efficiency of photovoltaic-thermoelectric power generation is improved.

Description

technical field [0001] The invention belongs to the technical field of solar power generation, and in particular relates to a photovoltaic thermoelectric power generation device suitable for mountain environments. Background technique [0002] With the increasingly prominent energy and environmental issues, solar photovoltaic power generation technology has received more and more attention as a way of utilizing solar energy. In solar photovoltaic power generation technology, solar photovoltaic power generation can only convert light energy equal to the bandwidth into electrical energy, and light energy greater than the forbidden band width can only be lost in the form of heat. In fact, the photoelectric conversion efficiency of current solar cells is only below 20%, and more than 80% of light energy cannot be converted into useful energy. Therefore, on the one hand, it will cause a great waste of solar heat energy, and at the same time, the heat energy that is not converted...

AI Technical Summary

Problems solved by technology

In fact, the photoelectric conversion efficiency of current solar cells is only below 20%, and more than 80% of light energy cannot be converted into useful energy.

Therefore, on the one hand, it will cause a great waste of solar heat energy, and at the same time, the heat energy that is not converted into electrical energy will also cause the temperature of the photovoltaic cell to rise, and the conversion efficiency of the photovoltaic cell will decrease with the increase of the conversion temperature. The heating of the photovoltaic cells by heat will cause the conversion efficiency to decrease, and it is necessary to cool them. On the one hand, the photoelectric conversion efficiency of solar energy can be improved, and on the other hand, excess heat can be recovered and utilized by a certain cooling method to improve the comprehensive utilization of solar energy. efficiency

Due to the uneven terrain of mountainous photovoltaic power stations and insufficient water sources, it is unrealistic to use water to cool photovoltaic panels

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