Discrete-Time Fractional-Order Sliding Mode Attitude Control of Multi-Spacecraft Systems Based on the Fully Actuated System Approach
In practical applications, most systems operate based on digital signals obtained through sampling. Applying fractional-order control to spacecraft attitude control is meaningful for achieving better performance, especially in the coordination of the multi-spacecraft attitude system. In this paper,...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-07-01
|
| Series: | Fractal and Fractional |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-3110/9/7/435 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849733701302222848 |
|---|---|
| author | Yiqi Chen Shuyi Shao |
| author_facet | Yiqi Chen Shuyi Shao |
| author_sort | Yiqi Chen |
| collection | DOAJ |
| description | In practical applications, most systems operate based on digital signals obtained through sampling. Applying fractional-order control to spacecraft attitude control is meaningful for achieving better performance, especially in the coordination of the multi-spacecraft attitude system. In this paper, a discrete-time fractional-order sliding mode attitude control problem is studied for multi-spacecraft systems based on the fully actuated system approach. Firstly, a discrete-time disturbance observer based on the fractional-order theory is constructed to estimate the disturbance. Secondly, a discrete-time fractional-order sliding mode controller is designed by combining the transformed fully actuated discrete-time system and the disturbance observer. Subsequently, every spacecraft can track the desired attitude under the designed controller. Finally, the simulation results show that the developed control method achieves faster convergence, smaller overshoot, and higher control accuracy. |
| format | Article |
| id | doaj-art-b37dce0f33d24de1a1e8c64d2ce57dee |
| institution | DOAJ |
| issn | 2504-3110 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fractal and Fractional |
| spelling | doaj-art-b37dce0f33d24de1a1e8c64d2ce57dee2025-08-20T03:07:58ZengMDPI AGFractal and Fractional2504-31102025-07-019743510.3390/fractalfract9070435Discrete-Time Fractional-Order Sliding Mode Attitude Control of Multi-Spacecraft Systems Based on the Fully Actuated System ApproachYiqi Chen0Shuyi Shao1College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaCollege of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaIn practical applications, most systems operate based on digital signals obtained through sampling. Applying fractional-order control to spacecraft attitude control is meaningful for achieving better performance, especially in the coordination of the multi-spacecraft attitude system. In this paper, a discrete-time fractional-order sliding mode attitude control problem is studied for multi-spacecraft systems based on the fully actuated system approach. Firstly, a discrete-time disturbance observer based on the fractional-order theory is constructed to estimate the disturbance. Secondly, a discrete-time fractional-order sliding mode controller is designed by combining the transformed fully actuated discrete-time system and the disturbance observer. Subsequently, every spacecraft can track the desired attitude under the designed controller. Finally, the simulation results show that the developed control method achieves faster convergence, smaller overshoot, and higher control accuracy.https://www.mdpi.com/2504-3110/9/7/435discrete-time controlfractional-order controlfully actuated system approachdisturbance observercooperative control |
| spellingShingle | Yiqi Chen Shuyi Shao Discrete-Time Fractional-Order Sliding Mode Attitude Control of Multi-Spacecraft Systems Based on the Fully Actuated System Approach Fractal and Fractional discrete-time control fractional-order control fully actuated system approach disturbance observer cooperative control |
| title | Discrete-Time Fractional-Order Sliding Mode Attitude Control of Multi-Spacecraft Systems Based on the Fully Actuated System Approach |
| title_full | Discrete-Time Fractional-Order Sliding Mode Attitude Control of Multi-Spacecraft Systems Based on the Fully Actuated System Approach |
| title_fullStr | Discrete-Time Fractional-Order Sliding Mode Attitude Control of Multi-Spacecraft Systems Based on the Fully Actuated System Approach |
| title_full_unstemmed | Discrete-Time Fractional-Order Sliding Mode Attitude Control of Multi-Spacecraft Systems Based on the Fully Actuated System Approach |
| title_short | Discrete-Time Fractional-Order Sliding Mode Attitude Control of Multi-Spacecraft Systems Based on the Fully Actuated System Approach |
| title_sort | discrete time fractional order sliding mode attitude control of multi spacecraft systems based on the fully actuated system approach |
| topic | discrete-time control fractional-order control fully actuated system approach disturbance observer cooperative control |
| url | https://www.mdpi.com/2504-3110/9/7/435 |
| work_keys_str_mv | AT yiqichen discretetimefractionalorderslidingmodeattitudecontrolofmultispacecraftsystemsbasedonthefullyactuatedsystemapproach AT shuyishao discretetimefractionalorderslidingmodeattitudecontrolofmultispacecraftsystemsbasedonthefullyactuatedsystemapproach |