Satellite thermal vacuum test ground power supply system

Abstract

The invention provides a satellite thermal vacuum test ground power supply system. A solar simulation array converts a three-phase alternating current into a constant current source for providing a charging power supply to a satellite; a launching control platform carries out on-off control and state monitoring on a charging link and simultaneously collects voltages of storage batteries and platform buses on the satellite; an external transit cable network divides the charging power supply into two paths, wherein one path is connected to sliding rings of the satellite through a flange disk and an internal transit cable network, and then output power is connected to a diverter and a charge and discharge regulator of the satellite through sliding ring channels; and the other path is connected to a pull-off plug through the flange disk and the internal transit cable network, and then output power is connected to the diverter and the charge and discharge regulator through pull-off plug channels, so that standby channels are available for supplying power to the satellite when the sliding rings break down, the battery discharge depth of the satellite does not exceed a designed value, and a thermal vacuum simulation test can be continued. The satellite thermal vacuum test ground power supply system is simple in structure, an existing system is changed a little, and proved by experiments, the method is reasonable and feasible.

Description

technical field [0001] The invention relates to the technical field of a satellite comprehensive test system, in particular to a ground power supply system for a satellite thermal vacuum test. Background technique [0002] All-stage electrical test of satellite thermal vacuum test, including electrical test before thermal vacuum test, vacuum discharge test, thermal balance test, thermal vacuum test, electrical test after thermal vacuum test, etc., complete thermal balance test with thermal control system test conditions, and obtain satellite Temperature distribution data; assess the working performance of satellites in vacuum high and low temperature environments, and verify the performance matching and coordination between various systems. [0003] After the vacuum tank is closed, start vacuuming. When the pressure of the vacuum tank drops to 6000Pa, the satellite is powered on according to the active section (external power). When the vacuum tank pressure reaches 2000Pa, t...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the single-point failure problem of the slip ring power supply that may occur in the satellite thermal vacuum test in the prior art, the purpose of the present invention is to provide a ground power supply system for the satellite thermal vacuum test to ensure that the test can continue

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