Gain scheduling control method for space rendezvous system considering linearization error

Abstract

The invention provides a space rendezvous system gain scheduling control method with linearization errors taken into consideration, and relates to a spacecraft orbit rendezvous gain scheduling control method. The space rendezvous system gain scheduling control method solves the problem that due to the fact that according to an existing aircraft orbit rendezvous control method, input saturation and parameter uncertainty caused by the linearization errors are ignored, time consumption is high when an aircraft orbit rendezvous task is completed. According to the space rendezvous system gain scheduling control method, the parameter uncertainty caused by the linearization errors is taken into consideration and endowed with exact meanings, an aircraft orbit rendezvous relative movement model is established, a gain scheduling controller of an aircraft orbit rendezvous is then designed, the aircraft orbit rendezvous is controlled through the gain scheduling controller, and the rendezvous task is completed. The space rendezvous system gain scheduling control method is mainly used for controlling the aircraft orbit rendezvous.

Description

technical field

[0001] The invention relates to a gain scheduling control method of a spacecraft orbit rendezvous system. Background technique

[0002] Spacecraft orbital rendezvous is a very important flight operation technique. A successful rendezvous is a prerequisite for some advanced space operations, such as on-orbit assembly, recovery, resupply and maintenance of large infrastructure such as space stations, space laboratories, space communication and remote sensing platforms, and international space rescue services. The orbit control problem of spacecraft rendezvous is one of the important components of spacecraft rendezvous and docking technology. In the past few decades, the problem of orbital rendezvous control of spacecraft has received extensive attention.

[0003] Orbital rendezvous is subject to general constraints, of which the constraints on the acceleration that the thrusters can produce are critical. This is because if the acceleration obtained according...

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