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Active robust control scheme for uncertainty and flexibility suppression of air-breathing hypersonic vehicles
Pu, Zhiqiang; Yuan, Ruyi; Tan, Xiangmin; Yi, Jianqiang; Zhiqiang Pu
2014
Conference NameThe 33rd Chinese Control Conference
Source PublicationProceedings of the 33rd Chinese Control Conference, CCC 2014, p 2265-2270
Conference DateSeptember 11, 2014
Conference PlaceNanjing, China
AbstractInevitable uncertainties and cross couplings between rigid and flexible modes pose huge challenges to control design for flexible air-breathing hypersonic vehicles. This paper addresses an active robust control scheme that can simultaneously suppress uncertainties and flexible modes using active approaches rather than inherent system robustness. Couplings between different rigid and flexible modes are analyzed, providing insights into internal coupling behaviors. Generally, the active robust control scheme consists of two components: a nonlinear extended state observer (ESO) and a notch filter. The ESO is designed to estimate and compensate diverse uncertainties. For specific high-frequency uncertainties, the ESO estimated values could excite the flexible modes and then cause instabilities. So the notch filter is designed to actively suppress the specific high-frequency estimated signals induced by ESO. Both nonlinear and linear approaches are discussed for the notch filter design. At last, several representative simulations are conducted to demonstrate the advantages of the proposed active robust control scheme.
KeywordActive Control Uncertainty Flexibility Suppression Hypersonic Vehicle Extended State Observer Notch Filter
Indexed ByEI
Document Type会议论文
Identifierhttp://ir.ia.ac.cn/handle/173211/10807
Collection综合信息系统研究中心
Corresponding AuthorZhiqiang Pu
AffiliationInstitute of Automation,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Pu, Zhiqiang,Yuan, Ruyi,Tan, Xiangmin,et al. Active robust control scheme for uncertainty and flexibility suppression of air-breathing hypersonic vehicles[C],2014.
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