Active disturbance rejection control for spacecraft relative motion in libration point orbits subject to actuator saturation and time-delays

Wenchao Li, Jianlin Chen, Yang Yu, Lei Cheng, Jianping Yuan

Research output: Contribution to journalConference articlepeer-review

Abstract

In this paper, a novel ADRC scheme is introduced for a class of spacecraft relative motion system with actuator saturation and time-delays. The relative kinematics and dynamics between two spacecrafts are modeled with dual quaternions to avoid singular points. A set of dimensionless variables is introduced to improve the computation accuracy. Considering communication time-delays and actuator saturation, an extended state observer with time-delays predictor and an anti-windup compensator are designed. Then, a composite controller is designed to eliminate the total disturbances. Finally, the effectiveness of the proposed methodology is verified for the spacecraft rendezvous and docking system.

Original languageEnglish
JournalProceedings of the International Astronautical Congress, IAC
Volume2023-October
StatePublished - 2023
Event74th International Astronautical Congress, IAC 2023 - Baku, Azerbaijan
Duration: 2 Oct 20236 Oct 2023

Keywords

  • ADRC
  • Anti-windup
  • Dual quaternion
  • Libration point orbits
  • Time-delays

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