适应性事件触发控制不确定非线性系统的不确定方向的多次间歇性执行器故障的不确定非线性系统
Xinpeng Fang1, Huijin Fan2, Lei Liu2
1School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan 430074, China; School of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, United Kingdom.
ISA transactions
|April 17, 2025
概括
本研究涉及不确定的非线性系统中间歇性的反向执行器故障. 一个新的自适应事件触发的容错控制方案通过管理不确定的故障方向来提高系统安全性和寿命.
科学领域:
- 控制系统工程 控制系统工程
- 耐故障控制控制的控制方式
- 非线性系统是非线性系统.
背景情况:
- 间歇性的反向执行器故障对系统稳定性,安全性和寿命构成重大风险.
- 现有的耐故障控制方法不足以处理多个间歇性故障,方向不确定,特别是当它们的数量可能无限时.
- 这些断层的不可预测性需要先进的控制策略.
研究的目的:
- 调查适应事件触发的故障耐受性控制对于不确定的非线性系统,面临不确定的方向的多次间歇性执行器故障.
- 开发一种控制方案,能够管理无限数量的反向故障.
- 提高系统安全性和延长运行寿命.
主要方法:
- 提出了具有定义符号属性的新Nussbaum函数,以处理反向故障模式.
- 基于零碎集成的矛盾论证的开发,以确保Nussbaum函数在间歇和多重故障下具有边界性.
- 引入一个新的事件触发机制,考虑信号的变化大小和速度,以管理频繁的控制信号变化.
主要成果:
- 对所有闭环信号的全球统一边界的证明.
- 系统输出向参考轨迹的非对称跟踪.
- 通过模拟验证拟议的耐故障控制方案的有效性和优势.
结论:
- 开发的自适应事件触发式耐故障控制方案有效地管理不确定非线性系统中间歇性的反向执行器故障.
- 提出的方法确保系统稳定性和性能,尽管复杂的故障场景.
- 该方法在系统安全和寿命延长方面提供了显著的改进.
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