Simulation test equipment and method for moonlet attitude control reliability validation

Abstract

Simulation test equipment for validating the reliability of satellite attitude control and a test method thereof belong to the field of satellite attitude control. The test equipment comprises a ground simulation support module, a fault injection module and a satellite-born module, wherein, the ground simulation support module includes a monitoring terminal, a satellite model, a signal exciting source and a moment reverse-solution unit; the fault injection module includes an analog-to-digital converter, a signal transfer circuit, a fault injection processor, a man-machine interface unit and a digital-to-analog converter; and the satellite-born module includes a sensor, a satellite-born controller and an actuator. The test method comprises the following steps of: fault model setting; satellite initialization; orbit and attitude information renewal; the satellite-born controller collects signals of the sensor and outputs actuator command signals to the fault injection module; the actuator receives actuator pseudo command signals and outputs feedback signals to the fault injection module; the moment reverse-solution unit collects the pseudo feedback signals output by the fault injection module and outputs moment control signals to the satellite model. The equipment and the method of the invention have high feasibility and high performance-price ratio.

Description

technical field [0001] The invention relates to a simulation test device and a test method for small satellite attitude control reliability verification in the field of satellite control system test. Background technique [0002] The attitude control system is the most critical subsystem of a small satellite, and its reliability is the basic guarantee for the normal operation of the small satellite. In order to improve the reliability and safety of the control system, it is necessary to establish a monitoring and verification platform to detect the operation of the entire control system, fully simulate the possible working status of the spaceborne components on the ground, and test the emergency management capabilities of the spaceborne controller and fault tolerance, fully expose the problems of the attitude control system, and ensure the reliable operation of the attitude control system. [0003] At present, most of the satellite attitude control ground simulation tests u...

AI Technical Summary

Problems solved by technology

Although the test equipment can carry out semi-physical simulation of satellite attitude control, it is costly, bulky, complex information flow, and the reliability and safety quality of the simulation is difficult to guarantee, and it is difficult to test the emergency management capability and fault tolerance of the spaceborne controller. detection

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