为了实现高加西-苏杰诺非线性系统的稳健故障检测
Jitao Li1, Xu Fang2, Zhihao Zhang3
1College of Mechanical and Electrical Engineering, Harbin Engineering University, 150001, PR China.
ISA transactions
|May 21, 2024
概括
本研究提出了一个新的强大的故障检测观察员设计,用于离散时间非线性系统. 该方法使用有限频率指数和峰值分析,以提高故障灵敏度和干扰排斥.
科学领域:
- 控制系统工程 控制系统工程
- 非线性系统分析 非线性系统分析
- 检测和诊断故障的检测和诊断.
背景情况:
- 强大的故障检测对于离散时间非线性系统的可靠运行至关重要.
- 现有的方法在表征故障灵敏度和干扰强度时可能表现为保守或低于最佳性能.
- 塔卡吉-苏杰诺 (T-S) 模糊模型被广泛用于表示非线性系统.
研究的目的:
- 为离散时间的Takagi-Sugeno非线性系统开发一种新的,强大的故障检测观测器设计.
- 通过使用有限频域技术来提高故障灵敏度和干扰强度.
- 为了减少与观察者设计相关的保守主义.
主要方法:
- 使用有限频率的H-指数来量化故障灵敏度.
- 采用有限频率的H∞指数来进行干扰强度的表征.
- 应用峰值分析来导出故障检测的动态值.
- 开发一个代算法,以尽量减少设计保守主义.
主要成果:
- 拟议的方法实现了对离散时间TS非线性系统的可靠故障检测观察员设计.
- 理论分析证实,新方法的性能与现有方法相比或优于现有方法.
- 模拟结果验证了开发的故障检测策略的有效性和实用性.
结论:
- 新的有限频率H-/H∞和基于峰值对峰值分析的方法为离散时间TS非线性系统的故障检测提供了强大的解决方案.
- 代算法有效地减少了保守主义,提高了观察者的表现.
- 拟议的方法提供了一个可行的和有效的工具,以确保系统的安全性和可靠性.
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