Switched Hybrid Control for Spacecraft Attitude Control With Flexible and Guaranteed Performance

IF 4.9 2区 计算机科学 Q1 AUTOMATION & CONTROL SYSTEMS
Jiakun Lei;Tao Meng;Dongyu Li;Kun Wang;Weijia Wang;Zhonghe Jin
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Abstract

This article addresses the challenge of achieving spacecraft attitude control with guaranteed performance while significantly reducing actuator activation frequency. To tackle this issue, we propose the concept of switched hybrid control and further integrate it with a modified prescribed-performance control (PPC) scheme. To enhance the robustness of the PPC control, we introduce the concept of a zeroing barrier function (ZBF). Coupled with a projection-operator-based modification dynamics, this approach assesses and adjusts the envelope in response to the risk of violating performance envelope constraints. Subsequently, a control mode switching strategy, considering the safety of the performance envelope and the system’s motion velocity, is proposed. This strategy automatically switches between intermittent and continuous control modes to select an appropriate control command execution strategy, thereby reducing actuator activation frequency under proper circumstances. Furthermore, we demonstrate the boundedness of the closed-loop system for different control modes and establish a uniform upper bound of the Lyapunov certificate throughout the entire time domain, thereby proving the overall uniformly ultimately bounded (UUB) of the system. Finally, numerical simulation results are presented to validate the effectiveness of the proposed control scheme.
柔性和性能保证航天器姿态控制的切换混合控制
本文解决了在保证航天器姿态控制性能的同时显著降低致动器激活频率的挑战。为了解决这个问题,我们提出了切换混合控制的概念,并将其与改进的规定性能控制(PPC)方案进一步集成。为了提高PPC控制的鲁棒性,引入了归零势垒函数(ZBF)的概念。结合基于投影算子的修改动态,该方法评估和调整包络线,以响应违反性能包络线约束的风险。在此基础上,提出了一种兼顾性能包络安全性和系统运动速度的控制模式切换策略。该策略在间歇和连续控制模式之间自动切换,选择合适的控制命令执行策略,从而减少执行器在适当情况下的激活频率。进一步证明了闭环系统在不同控制模式下的有界性,并在整个时域内建立了Lyapunov证书的一致上界,从而证明了系统的整体一致最终有界(UUB)。最后给出了数值仿真结果,验证了所提控制方案的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
IEEE Transactions on Control Systems Technology
IEEE Transactions on Control Systems Technology 工程技术-工程:电子与电气
CiteScore
10.70
自引率
2.10%
发文量
218
审稿时长
6.7 months
期刊介绍: The IEEE Transactions on Control Systems Technology publishes high quality technical papers on technological advances in control engineering. The word technology is from the Greek technologia. The modern meaning is a scientific method to achieve a practical purpose. Control Systems Technology includes all aspects of control engineering needed to implement practical control systems, from analysis and design, through simulation and hardware. A primary purpose of the IEEE Transactions on Control Systems Technology is to have an archival publication which will bridge the gap between theory and practice. Papers are published in the IEEE Transactions on Control System Technology which disclose significant new knowledge, exploratory developments, or practical applications in all aspects of technology needed to implement control systems, from analysis and design through simulation, and hardware.
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