Uncertainty analysis and robust trajectory linearization control of a flexible air-breathing hypersonic vehicle

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	Uncertainty analysis and robust trajectory linearization control of a flexible air-breathing hypersonic vehicle
	Pu, Zhiqiang; Tan, Xiangmin; Fan, Guoliang; Yi, Jianqiang
刊名	ACTA ASTRONAUTICA
	2014-08-01
卷号	101 页码:16-32
关键词	Uncertainty Flexible Hypersonic vehicle Trajectory linearization control Extended state observer
英文摘要	Flexible air-breathing hypersonic vehicles feature significant uncertainties which pose huge challenges to robust controller designs. In this paper, four major categories of uncertainties are analyzed, that is, uncertainties associated with flexible effects, aerodynamic parameter variations, external environmental disturbances, and control-oriented modeling errors. A uniform nonlinear uncertainty model is explored for the first three uncertainties which lumps all uncertainties together and consequently is beneficial for controller synthesis. The fourth uncertainty is additionally considered in stability analysis. Based on these analyses, the starting point of the control design is to decompose the vehicle dynamics into five functional subsystems. Then a robust trajectory linearization control (TLC) scheme consisting of five robust subsystem controllers is proposed. In each subsystem controller, TLC is combined with the extended state observer (ESO) technique for uncertainty compensation. The stability of the overall closed-loop system with the four aforementioned uncertainties and additional singular perturbations is analyzed. Particularly, the stability of nonlinear ESO is also discussed from a Lienard system perspective. At last, simulations demonstrate the great control performance and the uncertainty rejection ability of the robust scheme. (C) 2014 Published by Elsevier Ltd. on behalf of IAA.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Aerospace
研究领域[WOS]	Engineering
关键词[WOS]	TRACKING CONTROL ; DESIGN ; GUIDANCE ; MODEL
收录类别	SCI
语种	英语
WOS记录号	WOS:000337998600002
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/4148]
专题	自动化研究所_综合信息系统研究中心
作者单位	Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Pu, Zhiqiang,Tan, Xiangmin,Fan, Guoliang,et al. Uncertainty analysis and robust trajectory linearization control of a flexible air-breathing hypersonic vehicle[J]. ACTA ASTRONAUTICA,2014,101:16-32.
APA	Pu, Zhiqiang,Tan, Xiangmin,Fan, Guoliang,&Yi, Jianqiang.(2014).Uncertainty analysis and robust trajectory linearization control of a flexible air-breathing hypersonic vehicle.ACTA ASTRONAUTICA,101,16-32.
MLA	Pu, Zhiqiang,et al."Uncertainty analysis and robust trajectory linearization control of a flexible air-breathing hypersonic vehicle".ACTA ASTRONAUTICA 101(2014):16-32.