Combined power supply system device combining solar photovoltaic and photothermal

Abstract

The invention discloses a novel power supply system device combining solar photovoltaic and photothermal. According to the novel power supply system device combining the solar photovoltaic and the photothermal, solar energy storage is completed by the utilization of the technology of solar thermochemical hydrogen production and the technology of solar photovoltaic electrolysis hydrogen production, and therefore the novel power supply system device combining the solar photovoltaic and the photothermal can effectively solve the problems of intermittence and randomness of solar energy and the like. The solar photovoltaic is utilized to supply power to a system, and thermal energy generated by solar radiation is converted into hydrogen energy which can be stored by the utilization of a method of solar thermochemical hydrogen production. When the photovoltaic power supply device can not meet the requirement of system power supply, the hydrogen energy is converted into direct-current electric energy through a fuel cell to conduct compensation. Meanwhile, when electric energy generated by a photovoltaic array is excessive, the rest of the electric energy can be converted into the hydrogen energy to be stored through a photovoltaic electrolysis hydrogen production device, and therefore the solar energy can be effectively utilized.

Description

technical field [0001] The invention relates to a combined power supply system device for solar photovoltaic power generation and comprehensive utilization of light and heat, and belongs to the technical field of new energy utilization. Background technique [0002] Energy crisis and environmental pollution are two major problems facing mankind in the 21st century. China is short of primary energy, and fossil energy occupies a dominant position in the energy structure, exceeding 90%. However, greenhouse gases are inevitably produced in the process of using fossil raw materials, which affects the links of human existence. my country is rich in solar energy resources, and in the long run, it can fully meet the requirements of the national sustainable development strategy. However, the shortcomings of solar energy such as low energy density, wide distribution, and instability limit the development of solar energy. The development of high-efficiency and low-cost solar energy l...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings related to the above-mentioned existing solar utilization technology, and provide a new solar photovoltaic and photothermal combined power supply system device to overcome the shortage of fossil energy and the instability of solar energy in the prior art.

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