A class of adaptive predefined-time extended state observers for high-order strict-feedback systems
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作者:
Lv, Jixing
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机构:
Harbin Inst Technol, Sch Aeronaut, Harbin 150001, Peoples R ChinaHarbin Inst Technol, Sch Aeronaut, Harbin 150001, Peoples R China
Lv, Jixing
[1
]
Ju, Xiaozhe
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机构:
Harbin Inst Technol, Sch Aeronaut, Harbin 150001, Peoples R China
Harbin Inst Technol Shenzhen, Sch Aeronaut, Shenzhen, Peoples R ChinaHarbin Inst Technol, Sch Aeronaut, Harbin 150001, Peoples R China
Ju, Xiaozhe
[1
,2
]
Wang, Changhong
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机构:
Harbin Inst Technol, Sch Aeronaut, Harbin 150001, Peoples R ChinaHarbin Inst Technol, Sch Aeronaut, Harbin 150001, Peoples R China
Wang, Changhong
[1
]
Kao, Yonggui
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机构:
Harbin Inst Technol Weihai, Sch Math, Weihai, Peoples R ChinaHarbin Inst Technol, Sch Aeronaut, Harbin 150001, Peoples R China
Kao, Yonggui
[3
]
Jiang, Yushi
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Beijing Inst Space Long March Vehicle, Natl Key Lab Sci & Technol Test Phys & Numer Math, Beijing, Peoples R ChinaHarbin Inst Technol, Sch Aeronaut, Harbin 150001, Peoples R China
Jiang, Yushi
[4
]
机构:
[1] Harbin Inst Technol, Sch Aeronaut, Harbin 150001, Peoples R China
[2] Harbin Inst Technol Shenzhen, Sch Aeronaut, Shenzhen, Peoples R China
[3] Harbin Inst Technol Weihai, Sch Math, Weihai, Peoples R China
[4] Beijing Inst Space Long March Vehicle, Natl Key Lab Sci & Technol Test Phys & Numer Math, Beijing, Peoples R China
Fast state estimation for nonlinear systems has been a key issue in control theory and the recently developed predefined-time stability acts as an effective tool for the problem. However, the studies of predefined-time state observer for nonlinear systems are rare. In this article, we consider the predefined-time extended state observer (PTESO) design for a class of high-order strict-feedback systems subject to H & ouml;lder continuous nonlinearities and lumped disturbance. By developing an adaptive mechanism and using time-varying functions, a class of adaptive PTESOs is designed to estimate the unavailable states and the lumped disturbance, in which the convergence time can be tightly and explicitly preset by only one parameter, irrelevant to the initial conditions. The adaptive mechanism is used to improve the transient performance under wide-range lumped disturbance. Moreover, thanks to the design of the time-varying gains, the PTESO could realize fast observation with trivial peaking observation errors. Finally, simulation results are provided to illustrate the effectiveness of the proposed observer.
机构:Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Sec, Chongqing 400044, Peoples R China
Yang, Huanyu
Wang, Yujuan
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机构:
Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Sec, Chongqing 400044, Peoples R ChinaChongqing Univ, State Key Lab Power Transmiss Equipment & Syst Sec, Chongqing 400044, Peoples R China
Wang, Yujuan
Song, Yongduan
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机构:Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Sec, Chongqing 400044, Peoples R China
Song, Yongduan
Shao, Zhuwu
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机构:Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Sec, Chongqing 400044, Peoples R China
机构:
Liaoning Univ, Sch Math & Stat, Shenyang 110036, Peoples R ChinaLiaoning Univ, Sch Math & Stat, Shenyang 110036, Peoples R China
Fu, Lulu
Ma, Ruicheng
论文数: 0引用数: 0
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机构:
Liaoning Univ, Sch Math & Stat, Shenyang 110036, Peoples R ChinaLiaoning Univ, Sch Math & Stat, Shenyang 110036, Peoples R China
Ma, Ruicheng
Pang, Haozhe
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机构:
Liaoning Univ, Sch Math & Stat, Shenyang 110036, Peoples R ChinaLiaoning Univ, Sch Math & Stat, Shenyang 110036, Peoples R China
Pang, Haozhe
Fu, Jun
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机构:
Northeastern Univ, State Key Lab Synthet Automat Proc Ind, Shenyang 110819, Peoples R ChinaLiaoning Univ, Sch Math & Stat, Shenyang 110036, Peoples R China
Fu, Jun
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS,
2022,
359
(08):
: 3492
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3516