Solar power generation and thermoelectric power generation integrated system for artificial satellite

Abstract

The invention discloses a solar power generation and thermoelectric power generation integrated system for an artificial satellite. The solar wing comprises more than two solar cell panels arranged ona solar wing substrate, and thermoelectric power generation pieces arranged between the solar wing substrate and the solar panels, wherein the thermoelectric power generation pieces correspond to thesolar panels in a one-to-one mode and are used for generating power through temperature difference, hot ends of the thermoelectric power generation pieces face the solar panels, cold ends of the thermoelectric power generation pieces face the solar wing substrate, and the hot end of each thermoelectric power generation sheet is coated with a heat conduction film.

Description

technical field [0001] The invention relates to the technical field of spacecraft energy, in particular to an integrated system of solar power generation and thermoelectric power generation for artificial satellites. Background technique [0002] With the development of solar energy technology, solar energy has been widely used as the main energy source of artificial satellites. According to the structure of the existing solar panels, artificial satellites have three structures: body-mounted solar arrays, solar paddles and solar wings. The more common one is the solar wing structure, which is in the retracted state when the satellite is launched, gradually unfolded and locked after lift-off, and finally enters the in-orbit deployment state. [0003] Since the artificial satellite is directly irradiated by sunlight when flying in space, the temperature on the sunny side can reach more than 100°C, while the temperature on the back side is very low. [0004] In the prior art,...

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Problems solved by technology

Although the device can realize thermoelectric power generation, there are still certain technical defects: first, the thermoelectric power generation chip used in the device uses a ceramic plate as the base, which has limited flexibility and cannot adapt to various shapes of different satellites; secondly, the increased multi-layer The heat insulation layer and the heat conduction layer undoubtedly increase the weight of the artificial satellite, which will be a great challenge for the artificial satellite; then, the device can only rely on the heat conduction layer to reduce the temperature of the cold end of the thermoelectric sheet, if it wants to achieve Good heat conduction effect requires extremely high performance of heat conduction materials, and it is easy to generate expensive expenses; finally, the hot end of the thermoelectric power generation sheet absorbs the temperature in the solar panel as the temperature of the hot end, although the use of the heat insulation layer has a certain Insulation effect, but it also limits the temperature absorbed by the hot end of the thermoelectric power generation sheet, which indirectly reduces the temperature difference between the hot end and the cold end of the thermoelectric power generation sheet, thereby reducing the power generation efficiency of the thermoelectric power generation sheet

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