Satellite attitude control Ground full physical simulation intelligent control system

Abstract

The invention provides a satellite attitude controlled ground full-physical simulation intelligent control system, comprising a pressure regulating valve, a pressure sensor, a spirit level, a weighing sensor and a controller, wherein the control end of the pressure regulating valve and the output end of the pressure sensor are connected with the controller, and the spirit level and the output end of the weighing sensor are connected with the controller; the spirit level measures the levelness of a base and outputs data to the controller, and the weighing sensor measures the weight of a test bed in real time and outputs data to the controller; based on the thought of fussy intelligent control, a dependent variable is selected for establishing a system model, the controller enabling the system to be asymptotically stable is designed according to the Lyapunov stability analysis theory, the conservatism of the system design is lower by adopting the thought of piecewise linearization, and the description rules of the controlled object and the controller are not limited so as to improve the flexibility of the system design. The system is simple in principle and convenient to maintain.

Description

technical field [0001] The invention relates to measurement technology, in particular to a satellite attitude control ground full physical simulation intelligent control system. Background technique [0002] The special operating environment of the space vehicle makes the ground simulation test particularly important. The core equipment of the full physical ground simulation system developed for the space vehicle is an air flotation simulation platform based on the air flotation ball bearing. The air film formed between the bearing seats makes the simulated platform body float, so as to realize the relative motion condition of approximately frictionless, so as to simulate the mechanical environment in which the satellite is subjected to a small disturbance moment in outer space. Among them, the eddy current moment and bearing capacity are the two most critical indicators. Different air supply pressure and bearing capacity will show different eddy current moments. The eddy cu...

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Problems solved by technology

However, this method does not involve issues such as bearing capacity and air supply pressure, and cannot be directly used to adjust the stability of the aircraft attitude control ground simulation system

[0004] Chinese invention patent application number: CN201410390718, the patent name is a test system and method for simulating the three-axis attitude coupling motion of a flexible satellite using a single-axis air-floor table. By expanding the function of the single-axis air bearing table, the combination of physical characteristics and mathematical models is adopted, and the calculation of the mathematical model is used to integrate the three-axis coupling torque, the disturbance torque of the flexible attachment and the The space environment disturbance torque is realized by the torque output device, which can improve the effectiveness of using a single-axis air bearing table to verify the single-axis attitude movement of the flexible satellite, and more truly reflect the single-axis attitude movement of the satellite in orbit. Debugging and analysis of floating platform stability, etc.

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