Solar energy tower type optical-condensation heat-storage thermophotovoltaic power generation system

Abstract

The invention relates to a solar energy tower type optical-condensation heat-storage thermophotovoltaic power generation system. The system comprises a tower type solar heat collector field, an optical-condensation heat-storage thermophotovoltaic generator, a working medium circulating system, a generation output system and an intelligent central controller. The optical-condensation heat-storage thermophotovoltaic generator comprises a central reflector, a heat radiator, an optical filter, a thermophotovoltaic cell, a latticed phase change heat-storage box, a temperature sensor, a thermal insulation layer, an upper reflecting plate, a lower reflecting plate, a radiator and a housing. The tower type solar heat collector field comprises a tower and heliostats for collecting solar energy and reflecting the solar energy to the central reflector. The central reflector further reflects the solar condensation energy to the heat radiator. Heat radiation spectrums are then generated. Parts of the heat radiation spectrums pass through the optical filter and irradiate the thermophotovoltaic cell in an optically condensing way. The thermophotovoltaic cell further generates power. The disperse solar energy use problem is solved. The heat radiator can be kept in a high temperature state. The photoelectric conversion efficiency of the thermophotovoltaic system is improved.

Description

technical field [0001] The invention relates to the field of solar power generation, more specifically, to a solar tower-type concentrating heat storage type thermal photovoltaic power generation system. Background technique [0002] The energy incident on the earth by the sun in one hour is more than the energy consumed by global human activities in a year. How to use solar energy efficiently is of great significance to solve the energy crisis and reduce the emission of greenhouse gases and particulate matter produced by the burning of fossil fuels. [0003] In recent decades, modern photovoltaic technology based on solar cells has developed rapidly. As the first generation of single crystal Si solar cells, polycrystalline Si solar cells and compound single crystal GaAs solar cells, they have relatively high conversion efficiency, but its production cost is relatively high; as the second generation of thin-film solar cells, less consumables, simple process, significantly re...

AI Technical Summary

Problems solved by technology

However, among the many hot spots in the research of thermophotovoltaic technology, how to keep the thermal radiator stable at a certain high temperature, further improve the photoelectric conversion efficiency of the thermophotovoltaic system, and how to solve the problem of dispersion in the process of solar energy utilization have become Further advance and optimize the technical bottleneck of solar thermal photovoltaic power generation system

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