Thermal control compensation power saving method and system during non-measurement and control arc shadow period

Abstract

The invention provides a thermal control compensation power saving method in the shadow period of the non-measurement and control arc segment, which includes: step 1: determining the heater state in the satellite illumination period and shadow period through thermal simulation; step 2: in the satellite measurement and control arc segment, according to the illumination In order to check the status of the heater in the period, send the command to prohibit the program control of the thermal control heater and the command to set the status of the thermal control heater; Step 3: Before the satellite leaves the measurement and control arc and enters the non-measurement and control arc, forecast and shadow according to the shadow time of the non-measurement and control arc The state of the heater during the period, send a delay command with a time code, respectively set the state of the thermal control heater when the non-measurement and control arc enters the shadow and exits the shadow; Step 4: After the non-measurement and control arc ends, the satellite re-enters the measurement and control arc , send the thermal control heater program control permission command, and perform closed-loop control on the heater according to the threshold. The invention effectively saves the thermal control compensation power during the shadow period of the satellite, and greatly reduces the risk of battery over-discharge.

Description

technical field [0001] The present invention relates to the field of satellite technology, in particular to a method and system for saving power by thermal control compensation during the shadow period of a non-measurement and control arc segment. In particular, it relates to a power saving method for thermal control compensation during the shadow period of a satellite non-measurement and control arc. Background technique [0002] During the light period of the satellite in orbit, the solar battery array equipped with the star can provide energy for the whole star; while in the shadow period, the battery needs to meet the power consumption demand of the whole star. However, with the development of spaceflight, it is urgent to optimize resources such as the weight and power consumption of satellites. The weight of batteries is also strictly controlled, and their power generation is also reduced accordingly. During the shadow period, the satellite has no light, and the therma...

AI Technical Summary

Problems solved by technology

During the shadow period, the satellite has no light, and the thermal control compensation power increases, which forms an irreconcilable contradiction with the decrease of battery capacity

In addition, in the non-measurement and control arc section, the satellite command cannot go up, and the thermal compensation heater cannot be effectively controlled. The increased burden on the battery during the shadow period also increases the risk of battery over-discharge.

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