具有状态时滞和控制时滞的不确定系统的鲁棒故障辨识研究

项目名称： 具有状态时滞和控制时滞的不确定系统的鲁棒故障辨识研究

项目编号： No.61304219

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 尤富强

作者单位： 东北大学

项目金额： 23万元

中文摘要： 动态系统的故障辨识技术因其在保障系统正常安全运行方面的重要地位和作用，已成为领域研究热点，但现有的故障辨识研究主要集中在无时滞系统。本项目针对各类工业系统中广泛存在的含有状态时滞和控制时滞的不确定系统，将无时滞系统故障辨识方法拓展到这类不确定时滞系统，以提高故障辨识的快速性、准确性和鲁棒性为宗旨，推进不确定时滞系统故障辨识的研究进程。主要研究内容包括：（1）基于有界实引理，研究不确定时滞系统的鲁棒故障辨识新方法；（2）利用去卷积滤波器技术，研究不确定时滞系统的鲁棒去卷积故障辨识器设计的新方法；（3）借助于H∞控制理论，研究不确定时滞系统的鲁棒H∞故障辨识问题，给出鲁棒H∞故障辨识器设计的新方法。本项目属于应用基础研究，研究成果将为复杂的工业过程、机器人、飞行器等系统的故障辨识提供有效的方法，具有广泛的应用前景，对于故障诊断和容错控制的发展具有重要意义。理论研究预计达到国际先进水平。

中文关键词： 鲁棒故障辨识；去卷积滤波器；H∞控制；时滞；

英文摘要： Fault identification is an important approach to improve the safety and reliability for dynamic systems.Hence, the study on fault identificaiton has become a hot research field, but mainly focuses on delay-free systems. Time delay is commonly encountered in various engineering systems.This project is aiming at presenting effective fault identification methods and extending delay-free system fault identification methods to uncertain systems with time delays in both controlvector and state vector.To improve the swiftness, accuracy and robustness of fault identification of time delay systems, so as to promote the research process of uncertain time delay systems.The main contents include(1) Based on bounded real lemma, we study the robust fault identification problem of time delay systems;(2)based on deconvolution filters,present the corresponding design methods for robust deconvolution fault identifiers;(3)We will also study the robust H∞ fault identification problem of time delay systems based on H∞ control theory, and present methods for robust H∞ fault identification. This project belongs to applied basic researches, the theoretic results of this project will provide effective fault identification methods for complex industry process, robot, aircraft, and so on. The theoretic results of this project will reach

英文关键词： robust fault identification；deconvolution filters；H∞ fault identification；time delay；