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A Class of Adaptive Extended State Observers for Nonlinear Disturbed Systems
Pu, Zhiqiang; Yuan, Ruyi; Yi, Jianqiang; Tan, Xiangmin
Source PublicationIEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
2015-09-01
Volume62Issue:9Pages:5858-5869
SubtypeArticle
AbstractThis paper proposes a novel class of adaptive extended state observers (AESOs) that significantly expand the applications of extended state observers (ESOs) to nonlinear disturbed systems. An AESO is designed as a linear time-varying form that, as a result, combines both the advantages of theoretical completeness in a conventional linear ESO (LESO) and good practical performance in a conventional nonlinear ESO (NESO). To tune the time-varying observer gains, AESO error dynamics is first transformed into a canonical (phase-variable) form. Then, time-varying PD-eigenvalues are assigned for the canonical system based on differential algebraic spectral theory. Theorems for stability and estimate error bounds of the AESO are given in the presence of unknown disturbances. These theorems also offer some important guidelines for assigning the PD-eigenvalues. To demonstrate the effectiveness of this new observer, two representative applications, including a numerical single-input-single-output example and a practical multiple-input-multiple-output hypersonic vehicle application, are exemplified, and comparison simulations are conducted among AESO, LESO, and NESO. Future work is pointed out in the end.
KeywordActive Disturbance Rejection Control Extended State Observer (Eso) Pd-eigenvalue Stability Analysis Time Varying
WOS HeadingsScience & Technology ; Technology
DOI10.1109/TIE.2015.2448060
WOS KeywordROBUST-CONTROL ; CANONICAL-FORMS ; UNCERTAINTY ; FEEDBACK ; DESIGN ; TRANSFORMATION ; CONVERGENCE
Indexed BySCI
Language英语
WOS Research AreaAutomation & Control Systems ; Engineering ; Instruments & Instrumentation
WOS SubjectAutomation & Control Systems ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS IDWOS:000359560800051
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Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/8911
Collection综合信息系统研究中心
AffiliationChinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Pu, Zhiqiang,Yuan, Ruyi,Yi, Jianqiang,et al. A Class of Adaptive Extended State Observers for Nonlinear Disturbed Systems[J]. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS,2015,62(9):5858-5869.
APA Pu, Zhiqiang,Yuan, Ruyi,Yi, Jianqiang,&Tan, Xiangmin.(2015).A Class of Adaptive Extended State Observers for Nonlinear Disturbed Systems.IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS,62(9),5858-5869.
MLA Pu, Zhiqiang,et al."A Class of Adaptive Extended State Observers for Nonlinear Disturbed Systems".IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 62.9(2015):5858-5869.
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