Quick attitude maneuver control method and system for double-super satellite in two-cabin unlocking state

Abstract

The invention provides a quick attitude maneuver control method and system for a double-super satellite in an unlocked state, and the method comprises the following steps: planning an attitude maneuver path according to the quality characteristics of two cabins (a platform cabin and a load cabin) of the double-super satellite and the control moment and angular momentum of an execution mechanism, and generating a feedforward control moment; according to the attitude maneuver planning result, combining the mass of the two cabins and the mass center positions of the two cabins to generate a translation feedforward control force of the mass centers of the two cabins; designing a feedforward and feedback combined control law, it is guaranteed that an attitude maneuver control path is consistent with a planned path in the unlocking state of the two cabins, and meanwhile it is guaranteed that the two cabins do not collide through relative mass center position control. According to the method, two objectives of attitude rapid maneuvering control in an unlocked state of two cabins of the double-super satellite are realized: 1, the spatial orientation of a load cabin is rapidly adjusted; and 2, the two cabins do not collide. The method can also provide a basis for specific engineering design of attitude rapid maneuvering control under the double-super-satellite two-cabin unlocking state.

Description

technical field [0001] The invention relates to satellite attitude dynamics and control, in particular to a method and system for rapid maneuvering control of attitude of a novel double-super satellite with two compartments unlocked. Background technique [0002] The requirements for attitude pointing accuracy and stability of future advanced spacecraft are two orders of magnitude higher than the current level. Traditionally, the fixed-connection design of the load and the platform is adopted, and the dynamic characteristics of the two are deeply coupled, which makes it difficult to achieve the double-exceeding index of the load. Although the active and passive micro-vibration suppression methods have achieved certain results, the defects of the limited fixed-connection design, It is difficult to achieve double super indicators. [0003] The ultra-high pointing accuracy and ultra-high stability (double super) satellite platform breaks the traditional fixed connection design...

AI Technical Summary

Problems solved by technology

However, the invention is mainly aimed at steady-state control, and does not involve the attitude rapid maneuvering control method of the double-super satellite and the two cabins in the unlocked state, and does not clarify the translational control method of the center of mass of the two cabins around the center of mass of the entire satellite during the rapid attitude maneuvering process.

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