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Spacecraft autonomous attitude control method

A technology of attitude control and spacecraft, applied in the direction of attitude control, adaptive control, general control system, etc.

Active Publication Date: 2019-05-31
BEIJING INST OF CONTROL ENG
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Problems solved by technology

[0004] The technical problem of the present invention is: aiming at the problem that the existing control method cannot realize autonomous attitude control of flexibl

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Embodiment Construction

[0051] Aiming at the flexible spacecraft attitude control system with multi-level, diversified control task requirements and restrictive constraints; firstly, the present invention performs feature modeling according to the nonlinear Euler angle kinematics and attitude dynamics of the flexible spacecraft, and completes based on The establishment of the intelligent adaptive control algorithm of the characteristic model mainly includes the golden section control algorithm, the tracking control algorithm, and the fuzzy golden section control algorithm; secondly, according to the nonlinear Euler angle kinematics and attitude dynamics of the flexible spacecraft Non-linear equations, to establish an adaptive fuzzy control algorithm; third, because a single control algorithm in the comprehensive control task cannot meet the overall requirements of the control task, when the system receives a specific control command, according to the pertinence of the control command Select the contro...

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Abstract

A spacecraft autonomous attitude control method includes steps of: 1) performing feature modeling according to a spacecraft kinematics dynamical model to obtain a maintenance tracking control algorithm, a golden section control algorithm, and a fuzzy golden section control algorithm; 2) according to the spacecraft kinematics dynamical model, establishing an adaptive fuzzy control algorithm; 3) according to the type of the input control command of the spacecraft, selecting a control algorithm to determine a spacecraft control law; 4) according to a decision function, determining a supervisory control law; and 5) according to the spacecraft control law and the supervisory control law, determining an execution control law, and controlling the spacecraft attitude according to the execution control law. The spacecraft autonomous attitude control method can provide a control system with a better control performance and a stable performance while meeting the requirements of multi-layer and diverse control tasks.

Description

technical field [0001] The invention relates to a spacecraft autonomous attitude control method, which belongs to the technical field of spacecraft control. Background technique [0002] With the development of space technology, the structure of spacecraft has become more and more complex, and its model is more difficult to describe with precise mathematical formulas, and often has nonlinearity and uncertainty, and is also limited by various constraints. Under the demand of intelligent and autonomous control of spacecraft, how to autonomously control the attitude of spacecraft for complex spacecraft with more and more multi-level and diversified control task requirements is the first problem that needs to be solved. [0003] Facing such problems, traditional control theories and methods encounter difficulties. Some intelligent control methods appearing at present, such as intelligent adaptive control based on feature model, it is controlled according to the dynamic characte...

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Application Information

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IPC IPC(8): G05B13/04G05D1/08
Inventor 冯佳佳王佐伟何刚姚蘅李乐尧张玉洁沈扬帆
Owner BEIJING INST OF CONTROL ENG
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