控制理论(社会学)
扰动(地质)
航天器
否定
控制(管理)
计算机科学
控制工程
工程类
人工智能
航空航天工程
古生物学
生物
程序设计语言
作者
Guangcheng Ma,Guangcheng Ma,Guan Wang,Hongwei Xia,Changwen Chen
标识
DOI:10.1177/10775463241284319
摘要
This paper proposes a selectively anti-disturbance control design for low-frequency flexible spacecraft while meeting strict convergence time constraints. Conditional disturbance negation (CDN) is investigated to make maximum use of disturbances by compensating harmful ones selectively while profiting from beneficial ones, which suppresses chattering in variables. Exact-time control (ETC) achieves exact and independent appointment of the convergence time by introducing a regulation function in the predefined-time control with neural networks (NN) removing singularity. ETC combined with CDN guarantees time accuracy and small chattering simultaneously. The globally exact-time stability analysis is conducted rigorously, and the boundedness of all variables can be achieved. Comparative simulations demonstrate the superiority and feasibility of the proposed controller.
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