Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7153683 | Chinese Journal of Aeronautics | 2018 | 12 Pages |
Abstract
A synchronous control of relative attitude and position is required in separated ultra-quiet spacecraft, such as drag-free, disturbance-free, and distributed spacecraft. Thus, a twistor-based synchronous sliding mode control is investigated in this paper to solve the control problem of relative attitude and position among separated spacecraft modules. The twistor-based control design and the stability proof are implemented using the Modified Rodrigues Parameter (MRP). To evaluate the effectiveness of the proposed control method, this paper presents a case study of separated spacecraft flying control considering the mass uncertainty and external disturbances. In addition, a simulation study of the Proportional-Derivative (PD) control is also presented for comparison. The results indicate that the twistor-based sliding mode controller can ensure global asymptotic stability. The states converge fast with ultra-precision and ultra-stability in both the attitude and position. Moreover, the proposed twistor-based sliding mode control system is robust to the mass uncertainty and external disturbances.
Related Topics
Physical Sciences and Engineering
Engineering
Aerospace Engineering
Authors
Qing LI, Lei LIU, Yifan DENG, Shuo TANG, Yanbin ZHAO,