Decentralized asymptotic fault tolerant control of near space vehicle with high order actuator dynamics

In this paper, a decentralized asymptotic fault tolerant control system is proposed for near space vehicle (NSV) attitude dynamics. First, NSV reentry mode is described, and the actuator failure model is developed whose behavior is described by high-order dynamics. Next, the multi-model based fault diagnosis and identification (FDI) algorithm is proposed for high order actuator dynamics, which can accurately diagnose and identify the fault in short time. Based on sliding mode, command filter, and backstepping technique, using information of FDI, a constrained fault tolerant control (FTC) is designed for reentry NSV. Finally, simulation results are given to demonstrate the effectiveness and potential of the proposed FTC scheme. & 2013 The Franklin Institute. Published by Elsevier Ltd. All rights reserved. 2.00 & 2013 The Franklin Institute. Published by Elsevier Ltd. All rights reserved. rg/10.1016/j.jfranklin.2013.02.025 was partially supported by the National Key Basic Research Program (no. 2012CB215202), the 111 18), the National Natural Science Foundation of China (61273171, 61034005, 61174058), the National ience Foundation of China (2011ZA52009, 2012ZA52017), PAPD, Funding of Jiangsu Innovation Program Education (CXZZ11-0213), funding for Outstanding Doctoral Dissertation in NUAA (BCXJ12-04), the Research Funds for the Central Universities, and Engineering and Physics Sciences Research Council, UK . ding author. Tel.: þ86 25 84892305; fax: þ86 25 84892300. dresses: [email protected], [email protected] (B. Jiang). r is also with the School of Electrical and Electronic Engineering, The University of Adelaide, Adelaide, SA ia. D. Xu et al. / Journal of the Franklin Institute 350 (2013) 2519–2534 2520