基于传感器最优配置的等价空间故障检测方法  

Parity space approach to fault detection based on optimal sensor location

作　　者：桂卫华[1] 彭涛[2] DING Steven X 何蓓[1] 

机构地区：[1]中南大学信息科学与工程学院,长沙410083 [2]湖南工业大学电气工程系,湖南株洲412008 [3]杜伊斯堡-埃森大学自动控制和复杂系统研究所,杜伊斯堡47048

出　　处：《控制与决策》2007年第7期800-804,共5页Control and Decision

基　　金：国家973计划项目(2002CB312200);湖南省自然科学基金项目(06JJ2064);湖南省教育厅科研项目(04C719).

摘　　要：提出一种基于传感器最优配置的等价空间故障检测方法.针对线性时不变动态系统,给出了传感器最优配置问题的描述,以及基于传感器最优配置的故障检测多目标优化问题的描述.在系统可供测量的N个变量中,选择能获得关于系统故障尽可能多信息的m个变量作为测量变量,在满足对故障具有尽可能高的灵敏度,同时对扰动等未知信号具有尽可能强的鲁棒性的条件下,使整个系统测量成本达到最低.仿真算例说明了所提出设计方法及算法的有效性.A parity space approach to fault detection based on optimal sensor location is proposed. A problem for optimal sensor location and a multi-objective optimal problem based on optimal sensor location are formulated for linear time invariant system, m variables that can attain the amount of information about the fault of process as much as possible out of N available process measurements are selected for measurement outputs. A minimum total measurement cost is achieved when the system is designed to be as sensitive as possible to faults and simultaneously as robust as possible to the unknown inputs such as disturbance. The simulation results show the effectiveness of the proposed approach.

关 键 词：故障检测 传感器最优配置 等价空间方法 多目标优化 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]