光学精密工程2024，Vol.32Issue(24)：3566-3579,14.DOI:10.37188/OPE.20243224.3566
集群航天器自主拼接控制地面实验系统设计
Key technology research on autonomous docking control simulation system for clustered spacecraft
摘要
Abstract
To address the issues of low accuracy and excessive complexity in ground-based three-degree-of-freedom air-floating platform simulations for autonomous spacecraft cluster docking experiments,we de-signed a continuous small-thrust,high-precision full-physical simulation system.This system was based on an embedded architecture and employed cascaded PID rotor propulsion control.Initially,a dynamic model for the ground-based full-physical simulation system,incorporating disturbance correction,was es-tablished.This model was developed based on the relative on-orbit dynamics of spacecraft clusters and the analysis of disturbances present in the ground simulation environment.A decoupled rotor propulsion sys-tem was then designed,which was integrated with a motion capture system,a master control host comput-er,and a lower control platform.The simulation spacecraft unit was developed using the μCOS operating system,and a three-degree-of-freedom motion control system was implemented based on a cascaded PID algorithm.Subsequent dual-spacecraft autonomous docking air-floating experiments were conducted to val-idate the system.The experimental results demonstrated that the simulation data generated by the dynam-ic model of the full-physical simulation system closely matched the experimental data.Specifically,the measured attitude pointing control accuracy of the ground simulation spacecraft was found to be no less than 0.1°,while the position control accuracy was no less than 1 mm.These results indicate that the devel-oped system meets the high-precision requirements necessary for semi-physical simulation of autonomous spacecraft cluster docking.Furthermore,the successful implementation of this system provides a reference framework for the development of large-scale satellite cluster simulation systems.The approach described in this paper offers a practical solution for overcoming the challenges associated with ground-based simula-tions of spacecraft docking,ensuring both accuracy and system simplicity,which are crucial for advancing the study and development of spacecraft cluster operations.关键词
集群航天器/自主拼接/全物理仿真系统/PID控制/旋翼推进Key words
clustered spacecraft/autonomous docking/full physical simulation system/PID/rotor pro-pulsion control分类
信息技术与安全科学引用本文复制引用
许传晓,康国华,武俊峰,陶新勇,吴佳奇,周佳艺,吴阳..集群航天器自主拼接控制地面实验系统设计[J].光学精密工程,2024,32(24):3566-3579,14.基金项目
江苏省双创人才项目(No.JSSCBS20210181) （No.JSSCBS20210181）
