Temperature control system and method for optimizing satellite energy use efficiency

Abstract

The invention discloses a temperature control system and method for optimizing the satellite energy use efficiency. The system is composed of a power telemetering acquisition module, a power supply controller, a temperature controller, a heating loop, a temperature sensor and a remote control command unit. The power telemetering acquisition module collects state information. The remote control command unit is used for receiving remote control data sent by the ground and sending a first remote control command and a second remote control command. The power supply controller is used for calculating the residual energy of a satellite. The temperature sensor is used for collecting the temperature of a control point. The temperature controller controls connection or disconnection of the heatingloop according to the residual energy of a satellite, the temperature of the control point, a temperature control threshold parameter and a temperature control strategy. The heating loop is used for receiving controlling of the temperature controller and providing heat or stopping heat supply for a controlled temperature area. According to the invention, the power generating capacity of the solarcell array is used fully; the power wasting is reduced; the discharging electricity amount of the storage battery in a shadow area is reduced; and the energy utilization efficiency of the satellite isincreased effectively.

Description

technical field [0001] The invention belongs to the field of satellite intelligent temperature control, and in particular relates to a temperature control system and method for optimizing satellite energy use efficiency. Background technique [0002] In satellites at home and abroad, the temperature control method of high and low temperature thresholds is widely used, and there is generally a temperature range of several degrees or more than ten degrees between the high and low temperature thresholds. The on-board temperature controller collects the temperature value of the control point and compares it with the high and low temperature thresholds. When the temperature of the control point is lower than the low temperature threshold, it starts heating, and when it is higher than the high temperature threshold, it stops heating. When it is between the high and low temperature thresholds, it keeps At present, the heating state remains unchanged, so that the controlled equipmen...

AI Technical Summary

Problems solved by technology

Whether in the shaded area or in the sunny area, as long as the temperature of the control point is lower than the low temperature threshold, the temperature controller will start heating until the temperature reaches the high temperature threshold. Long-term heating increases the discharge depth of the battery, but it does not heat in the sunny area, and the power generation of the solar panel may be shunted and wasted in vain.

[0004] Especially for satellites with low orbits, the shadow time is relatively long, and in order to reduce atmospheric resistance, some satellites adopt the structure of body-mounted solar cells, such as gravity measurement satellites, due to the influence of the sun's illumination angle, the solar cell array will The power generation efficiency is low, the energy on the star is very tight, and the power stored in the battery is also very limited. If the battery energy is used too much in the shadow area for heating, the satellite may be in a dangerous state

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