A supercritical carbon dioxide thermal power generation system with mixed utilization of photothermal and photovoltaic

Abstract

The patent of the present invention provides a supercritical carbon dioxide thermal power generation system using photothermal photovoltaic hybrid utilization, including a photothermal system, a carbon dioxide thermoelectric conversion system and a photovoltaic system. The photothermal system is connected to the carbon dioxide thermoelectric conversion system for providing heat sources, and the photovoltaic system is connected to carbon dioxide A thermoelectric conversion system for providing electricity. The carbon dioxide thermoelectric conversion system adopts a dual-shaft system arrangement, the first shaft system includes the main compressor, re-compressor and drive motor, and the second shaft system is the power generation turbine and generator; The supercritical carbon dioxide thermal power generation system, combined with solar thermal power generation, photovoltaic power generation, and supercritical carbon dioxide thermal cycle technology, conducts high-efficiency power generation, which helps to further improve the overall efficiency of the system, reduce the proportion of initial investment and power generation costs, improve market competitiveness, and promote Large-scale application of solar thermal technology.

Description

technical field [0001] The patent of the present invention belongs to the technical field of thermal power generation, and specifically relates to a supercritical carbon dioxide thermal power generation system utilizing photothermal photovoltaic hybrid utilization. Background technique [0002] Solar thermal power generation is a technology that uses a large-scale mirror field system to collect solar energy, converts solar energy into thermal energy and transfers it to working medium, and then uses thermodynamic cycle technology to convert thermal energy into electrical energy. Solar thermal power generation is a new type of clean energy in the future important direction of development. Solar photovoltaic power generation is the use of photovoltaic cells to directly convert solar energy into electrical energy, and then use power electronic equipment to convert electrical energy, and finally form a power generation technology that utilizes electrical energy. [0003] Supercr...

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Problems solved by technology

[0005] The purpose of the patent of the present invention is to provide a supercritical carbon dioxide thermal power generation system using solar thermal photovoltaic hybrid utilization, which solves the technical problem of how to combine solar thermal power generation, photovoltaic power generation, and supercritical carbon dioxide thermal cycle technology to generate high-efficiency power generation, which will help To further improve the overall efficiency of the system, reduce the proportion of initial investment and power generation costs, improve market competitiveness, and promote the large-scale application of solar thermal technology

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