Faults Accommodation Based on Online Fault Identi.cation
In this paper, we consider the fault accommodation for a class of linear time invariant (LTI) systems with an innovation form. The considered faults are mainly sensor and actuator faults. In the.rst place, the underlying faults are parameterized such that they can be estimated using the input-output data. If the system is time invariant, the actuator and sensor fault magnitudes can be identi.ed by the proposed method. The fault diagnosis result is further applied to the fault accommodation in the control system. The sensor bias errors or the actuator bias errors are removed from the feedback signals or the controller output action. A simulation example is given to show the effectiveness of the proposed methods.
Fault Detection Fault identi.cation Fault accommodation Fault tolerant control
Lihua Liu Xiukun Wei
Department of Automation, Beijing Information Science & Technology University, Beijing 100192, China Delft Center for Systems and Control, Delft University of Technology, Delft 2628 CD, The Netherlands
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
5272-5277
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）