Design of passive fault-tolerant flight controller against actuator failures

The problem of designing passive fault-tolerant flight controller is addressed when the normal and faulty cases are prescribed. First of all, the considered fault and fault-free cases are formed by polytopes. As considering that the safety of a post-fault system is directly related to the maximum va...

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Bibliographic Details
Published inChinese journal of aeronautics Vol. 28; no. 1; pp. 180 - 190
Main Authors Yu, Xiang, Zhang, Youmin
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.02.2015
Subjects
Actuator failure
Actuators
Airplanes
Amplitudes
Control systems
Design engineering
Fault tolerance
Gain
Lyapunov
不确定性
执行器故障
控制器设计
物理变量
系统输出
被动容错
飞行控制器
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Summary:The problem of designing passive fault-tolerant flight controller is addressed when the normal and faulty cases are prescribed. First of all, the considered fault and fault-free cases are formed by polytopes. As considering that the safety of a post-fault system is directly related to the maximum values of physical variables in the system, peak-to-peak gain is selected to represent the relationships among the amplitudes of actuator outputs, system outputs, and reference commands. Based on the parameter dependent Lyapunov and slack methods, the passive fault-tolerant flight controllers in the absence/presence of system uncertainty for actuator failure cases are designed, respectively. Case studies of an airplane under actuator failures are carried out to validate the effectiveness of the proposed approach
Bibliography:The problem of designing passive fault-tolerant flight controller is addressed when the normal and faulty cases are prescribed. First of all, the considered fault and fault-free cases are formed by polytopes. As considering that the safety of a post-fault system is directly related to the maximum values of physical variables in the system, peak-to-peak gain is selected to represent the relationships among the amplitudes of actuator outputs, system outputs, and reference commands. Based on the parameter dependent Lyapunov and slack methods, the passive fault-tolerant flight controllers in the absence/presence of system uncertainty for actuator failure cases are designed, respectively. Case studies of an airplane under actuator failures are carried out to validate the effectiveness of the proposed approach
11-1732/V
actuator tolerant uncertainty prescribed addressed nominal matrices validate outputs designing
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ISSN:1000-9361
DOI:10.1016/j.cja.2014.12.006