摘要
Purpose-The purpose of this paper is to present the research into fault detection and isolation(FDI)and evaluation of the reduction of performance after failures occurred in the flight control system(FCS)during its mission operation.Design/methodology/approach–The FDI is accomplished via using the multiple models scheme which is developed based on the Extend Kalman Filter(EKF)algorithm.Towards this objective,the healthy mode of the FCS under different type of failures,including the control surfaces and structural,should be considered.It developed a bank of extended multiple models adaptive estimation(EMMAE)to detect and isolate the above mentioned failures in the FCS.In addition,the performances including the flight envelope,the voyage and endurance in cruising are proposed to reference and evaluate the process of mission,especially for UAV under failure conditions.Findings-The contribution of this paper is to provide the information not only about the failures,but also considering whether the UAV can accomplish the task for the ground station.Originality/value-The main contribution of this paper is in the areas of the structural and control surface faults researching,which are occurred in the mission procedures and emphasized the identification of those failures’magnitudes.The FDI scheme includes the performance evaluation,while the evaluation obtained through the extensive numerical simulations and saved in the offline database.As a consequence,it is more accurate and less computationally demanding while evaluating the performance.
基金
This research is supported by the Aeronautical Science Foundation of China,under Grant Number 20100753009.
作者简介
Yueheng Qiu was born in 1984,and received BS and MS degrees from Northwestern Polytechnical University in 2007 and 2010,respectively.Currently,he is a PhD student at the School of Automation,Northwestern Polytechnical University.His main research interests include flight control and simulation,intelligence fault diagnosis,fault-tolerance control and information fusion.Yueheng Qiu is the corresponding author and can be contacted at:qiuyueheng@163.com;Weiguo Zhang was born in 1956 and received his PhD degree in Navigation,Guidance and Control from Northwestern Polytechnical University in 1997.Currently,he is a Professor at the School of Automation,Northwestern Polytechnical University.His research interests include control theory and its application,flight control system design and optimization,system modeling and simulation,and fault tolerance control;Xiaoxiong Liu was born in 1973 and received his PhD degree in Navigation,Guidance and Control from Northwestern Polytechnical University in 2006.Currently,he is an Associate Professor at the School of Automation,Northwestern Polytechnical University.His research interests include flight control and simulation,fault-tolerance control and intelligence computation;Pengxuan Zhao was born in 1986,and received BS and MS degrees from Northwestern Polytechnical University in 2008 and 2011,respectively.Currently,she is an Engineer at the First Aircraft Design Institute of AVIC.Her research is flight simulation.
