Title :
A novel fault diagnosis method design and application for civil aircraft system
Author :
Chen, Yongqi ; Zhong, Zhiguang
Author_Institution :
Intell. Sci. & Electromech. Syst. Lab., Ningbo Univ., Ningbo, China
Abstract :
For estimating faults of the system with unknown nonlinear term, a novel fault diagnosis method based on nonlinear compensation term and proportional multiple-integral observer is proposed. In this method, the nonlinear compensation term is constructed by support vector machines (SVM), which can reduce the influence of unknown nonlinear part. Proportional multiple-integral observer based nonlinear compensation term can estimate actuator faults when there are sensor faults or output disturbance in the system. The proposed method is applied in civil aircraft system. Simulation experiments are given to demonstrate the efficiency.
Keywords :
actuators; aerospace computing; aircraft; compensation; fault diagnosis; sensors; support vector machines; civil aircraft system; nonlinear compensation; output disturbance; proportional multiple-integral observer; sensor fault diagnosis method design; support vector machine; unknown nonlinear part; Actuators; Aircraft; Design methodology; Electromechanical systems; Fault detection; Fault diagnosis; Robustness; Sensor systems; State estimation; Support vector machines; Fault observer; compensation term; proportional multiple-integral observer; support vector machines;
Conference_Titel :
Automation and Logistics, 2009. ICAL '09. IEEE International Conference on
Conference_Location :
Shenyang
Print_ISBN :
978-1-4244-4794-7
Electronic_ISBN :
978-1-4244-4795-4
DOI :
10.1109/ICAL.2009.5262684
