空间控制技术与应用2025，Vol.51Issue(6)：75-85,11.DOI:10.3969/j.issn.1674-1579.2025.06.007
多源扰动下柔性支撑SGCMG伺服系统的预设时间复合控制
Prescribed-Time Composite Control of Flexible Support SGCMG Servo System Under Multi-Source Disturbances
摘要
Abstract
This paper addresses two complex control challenges in the single-gimbal control moment gyroscope(SGCMG)servo system:1)the uncertain flexibility and synchronous interference induced by a flexible support,and 2)achieving prescribed-time stability and robustness under multi-source disturbances for such uncertain nonlinear systems.To overcome these issues,a prescribed-time composite control strategy is designed.This strategy integrates a prescribed-time high-frequency disturbance observer and a prescribed-time terminal sliding mode speed controller,enabling the observation of high-frequency disturbances and the achievement of desired speed tracking performance within a prescribed time.Compared to existing SGCMG control schemes incorporating flexible support,this paper introduces a prescribed-time control strategy into the SGCMG servo system for the first time.This approach allows for the precise setting of the system response time,significantly improving control precision and response speed while reducing vibration amplitude,thereby enhancing system stability and robustness.The proposed method provides a novel solution for precise attitude control in complex space environments.Finally,a simulation case study is presented to demonstrate and validate the effectiveness of the proposed method.关键词
单框架控制力矩陀螺/柔性支撑/预设时间/干扰观测器/终端滑模Key words
single-gimbal control moment gyroscope/flexible support/prescribed-time/disturbance observer/terminal sliding mode分类
航空航天引用本文复制引用
ZHU Chenglong,ZHOU Yingjiang,LU Ming,JIANG Guoping,MU Chaoxu..多源扰动下柔性支撑SGCMG伺服系统的预设时间复合控制[J].空间控制技术与应用,2025,51(6):75-85,11.基金项目
国家自然科学基金资助项目(62273040和62373197) National Natural Science Foundation of China(62273040 and 62373197) （62273040和62373197）
