A thermal control method for a geo-orbiting satellite laser device

Abstract

The invention relates to a heat control method of a laser device of a geosynchronous earth orbit (GEO) satellite. The heat control method comprises the following steps of determining requirements for the working temperature of the laser device, wherein the requirements comprise a working temperature scope of internal components, a temperature gradient, and requirements along with the fluctuation of time; analyzing an orbit and posture control scheme of the GEO satellite, and choosing a high temperature heat working condition and a low temperature heat working condition to perform space external heat flux analysis so as to obtain the space heat quantity of the laser device; determining the working pattern and the heat consumption of the internal components of the laser device under the high temperature heat working condition and the low temperature heat working condition of a GEO; determining a heat dissipation scheme of the laser device; designing the internal heat conduction and the heat radiation of the laser device, and designing an optimal heat transferring route; and finally performing heat control on the components with high requirements on temperature in the laser device through a driving heat control loop. According to the heat control method disclosed by the invention, through the control measures on the heat conduction and the radiation of the laser device, a reasonable heat transferring route is designed, the internal heat consumption of the laser device is transmitted to a heat dissipating surface to be discharged and dissipated, and heating control and cooling control on the internal components with the high requirements on the temperature are performed to meet the temperature requirements of the laser device.

Description

technical field [0001] The invention relates to a thermal control method of a GEO (synchronous earth orbit) orbit satellite laser device. The invention is suitable for thermal control of a GEO orbit satellite laser device, and is especially suitable for a spaceborne laser device with higher requirements on temperature gradient and stability . Background technique [0002] With the development of aerospace technology, laser communication is gradually becoming familiar to people as a brand-new communication method. Laser communication has the characteristics of large communication capacity, fast transmission speed and accurate transmission path. At the same time, it consumes less resources on the star, such as equipment weight. Lightweight, low power consumption, etc. It can be widely used in occasions such as inter-satellite and satellite-to-ground communications. The development of foreign satellite-to-earth laser communication is relatively early, and it is mainly verifie...

Images