An anti-interference attitude control method and verification device based on flywheel output deviation

Abstract

The invention relates to a flywheel output deviation based anti-interference attitude control method and a verification device.The verification device comprises a real-time simulation target unit, an attitude determining module, an attitude control module, a reaction flywheel set, a test master control module and a triaxial air bearing table; the real-time simulation target unit calculates an aircraft attitude kinematic model; the attitude determining module filters and solves attitude information; the attitude control module calculates an attitude control algorithm and provides a torque control command for the reaction flywheel set; the reaction flywheel set receives a torque control command and transmits an output torque signal to the real-time simulation target unit; the test master control module is used for transmitting a control method switching signal to the attitude control module, and the attitude control unit executes a corresponding control algorithm according to the control method switching signal; the triaxial air bearing table simulates a mechanical environment for an aircraft in outer space.It is verified by the verification device that the flywheel output deviation based anti-interference attitude control method is effective; control precision of the attitude control system is improved.

Description

technical field [0001] The invention relates to an anti-interference attitude control method based on flywheel output deviation, a verification device and a verification method, which can be used to verify various attitude control methods including the anti-interference attitude control method based on flywheel output deviation; for the output deviation of flywheel An anti-jamming control method is proposed to counteract and suppress the interference. This method can significantly improve the real-time performance, precision and stability of the system, and further improve the control performance of the attitude control system. The invention belongs to the field of attitude control of aircraft. Background technique [0002] As the most ideal actuator for long-life satellites, the flywheel is also a key component of modern high-precision satellite attitude control. The flywheel is also called the momentum moment storage. By changing the momentum moment vector of the flywheel,...

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Problems solved by technology

Factors such as dynamic and static imbalance of the flywheel rotor, structural resonance of the flywheel, electromagnetic nonlinearity of the flywheel point machine and other factors cause the flywheel to generate disturbance vibration during operation, and the disturbance torque greatly reduces the satellite pointing accuracy and stability

The document "Real-time Simulation of Micro-satellite Attitude Control Based on Air-floor Platform" published in "Journal of Beijing University of Aeronautics and Astronautics" Volume 36 No. 7 in July 2010 established a semi-physical simulation experiment platform for the attitude control of a single rigid body micro-satellite A real-time simulation study was carried out. The control algorithm is the traditional PID control method. This method cannot effectively offset the interference caused by the output deviation of the flywheel, and fails to achieve the purpose of fine anti-interference.

[0005] Attitude control system test devices have been widely used in the development of aircraft. The 502 domestic aerospace institutes, the 812 aerospace institutes, and Harbin Institute of Technology, Tsinghua University, Beihang University and other universities have developed attitude control system test devices, but now Some attitude control system test devices are usually developed for a specific type of aircraft, and some are only for a specific space mission. They are built to verify a specific method, ignoring the influence of flywheel output deviation interference, and cannot be used for targets including those based on flywheel output. Research on Multiple Anti-jamming Attitude Control Methods Including Deviation

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