对于具有未知的控制系数,干扰和零动态的严格反类系统,规定的时间控制弱干扰脱问题
Na Wang1, Xiaoping Liu2, Yajing Zhao3
1School of Information and Electrical Engineering, Shandong Jianzhu University, Jinan, 250101, China.
ISA transactions
|August 29, 2025
概括
这项研究引入了一种新型的适应性定时控制器,可确保任务完成和稳定,即使有干扰. 它克服了现有的控制器长期运行和干扰减弱的局限性.
科学领域:
- 控制工程
- 非线性系统理论
- 机器人技术
背景情况:
- 现有的定时控制器面临着长期运行的挑战,因为调节功能定义不好或无法区分.
- 在规定的时间控制中,干扰脱一直是一个重要的未解决的问题.
研究的目的:
- 为不确定的非线性系统设计适应式控制器,以减轻干扰并限制系统输出错误在规定的时间.
- 在没有干扰的情况下确保系统状态的局限性稳定性.
主要方法:
- 使用指数函数的线性组合来实现无限时间可微分的现有规定的时间调整函数的平滑.
- 定义一个新的加权标准来处理系统的不确定性和干扰.
- 为严格反类非线性系统构建适应性定时几乎干扰解控制器.
主要成果:
- 拟议的控制器有效地克服了先前方法中非可区分函数引起的与无限制衍生品相关的问题.
- 在规定的时间之前和之后,比较模拟显示出优于现有的控制器的性能.
- 控制器在减轻干扰的影响方面表现出显著的有效性.
结论:
- 开发的适应性定时控制器为具有干扰的非线性系统提供了更好的性能和稳定性.
- 这种新的方法提高了在装配线操纵器等现实场景中规定的时间控制的可靠性和应用性.
- 控制器在规定的时间内确保任意小的输出误差界限和有限的稳定性.
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