Semi-physical platform for satellite executing mechanism online reconstitution and control method

Abstract

The invention discloses a semi-physical platform for satellite executing mechanism online reconstitution and a control method and belongs to the technical field of aerospace. The semi-physical platform comprises a remote control computer, a remote measuring computer, a satellite-borne control computer and a model simulation computer. In the control method, the satellite-borne control computer determines the attitude angle and the angular velocity of a satellite according to an attitude measurement value of a sensor, and solves a control law and a distributive law according to a target control signal to obtain an actual control signal of an executing mechanism; the executing mechanism produces an attitude control moment under the effect of the actual control signal. According to the semi-physical platform for satellite executing mechanism online reconstitution and the control method, the system resources are fully utilized, the control system design is simplified, the system robustness is improved, and the design complexity of a controller is reduced.

Description

Technical field [0001] The invention discloses a semi-physical platform and a control method for online reconstruction of a satellite actuator, and belongs to the technical field of aerospace. Background technique [0002] The attitude control system, as one of the most complicated subsystems in the satellite's many subsystems, plays a very key role in satellite control. However, because the satellite works in a complex space environment for a long time, the components of the attitude control system are prone to failure, and certain measures need to be taken to ensure the performance of the attitude control system in the event of a failure. The National Aeronautics and Space Administration (NASA) first proposed the concept of reconfiguration control in 1982, which was developed on the basis of traditional redundancy control theory. Reconfiguration control means that when one or more of the key components of the system fails or fails, the structure of the system is changed, and s...

AI Technical Summary

Problems solved by technology

Existing semi-physical simulation platforms for satellite attitude control mostly use Matlab to write applications, compile and generate codes from Simulink models through RTW, and download them to the target machine for semi-physical simulation. Although the method is simple, it requires high hardware requirements for the target machine and the code is portable performance is poor, and its real-time performance cannot meet the performance requirements of engineering satellite attitude control systems

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