| 基于时间冗余的一致空间法在故障检测及隔离中的应用 |
| |
| 引用本文： | 谢铁钢. 基于时间冗余的一致空间法在故障检测及隔离中的应用[J]. 北京理工大学学报, 2002, 22(4): 476-480. DOI: 10.3969/j.issn.1001-0645.2002.04.020 |
| |
| 作者姓名： | 谢铁钢 |
| |
| 作者单位： | 北京理工大学,自动控制系,北京,100081 |
| |
| 摘 要： | 研究基于时间冗余的一致空间法在线性时不变系统故障检测及隔离中的应用.指出系统在某一时刻某个故障在一致空间中位于固定方向.通过选取最优转换矩阵,将这一方向与其它因素在一致空间中所在方向相分离,提出一种故障隔离的方法.仿真实验表明,在传感器、执行器和元件均可能发生故障并且系统存在未知输入的情况下可实现故障检测及隔离.
|
| 关 键 词： | 一致空间 一致向量 时间冗余 故障检测 故障隔离 |
| 文章编号： | 1001-0645(2002)04-0476-05 |
| 收稿时间： | 2001-09-20 |
| 修稿时间： | 2001-09-20 |
Application of Time Redundancy Based Parity Space Approach in Fault Detection and Isolation |
| |
| XIE Tie gang. Application of Time Redundancy Based Parity Space Approach in Fault Detection and Isolation[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2002, 22(4): 476-480. DOI: 10.3969/j.issn.1001-0645.2002.04.020 |
| |
| Authors: | XIE Tie gang |
| |
| Affiliation: | Dept. of Automatic Control, Beijing Institute of Technology, Beijing100081, China |
| |
| Abstract: | Fault detection and isolation in linear time invariant systems is studied using the time redundancy based parity space approaches. It is pointed out that a given fault at a given time lies in the fixed direction in the parity space. The method for fault isolation is presented by separating this fixed direction from the directions in the parity space of the other factors by using optimal transformation matrices. Simulation experiments show that faults can be detected and isolated when sensors, actuators and components may all have faults and that the system has unknown inputs. |
| |
| Keywords: | parity space parity vector time redundancy fault detection fault isolation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京理工大学学报》浏览原始摘要信息 |
|
点击此处可从《北京理工大学学报》下载全文 |
