Position Control of Electro‐Hydraulic Actuator System With Disturbances Compensation.
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| Title: | Position Control of Electro‐Hydraulic Actuator System With Disturbances Compensation. |
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| Authors: | Wang, Yunfei1,2,3 (AUTHOR), Ding, Haigang3 (AUTHOR) haierdhg@126.com, Man, Jiaxiang4 (AUTHOR) |
| Source: | Energy Science & Engineering. Feb2026, Vol. 14 Issue 2, p831-842. 12p. |
| Subject Terms: | *Sliding mode control, *Tracking control systems, *Observability (Control theory), *Actuators, *Nonlinear control theory, *Lyapunov stability |
| Abstract: | This paper proposes a new output feedback controller based on global fast terminal sliding mode with disturbances rejection to achieve accurate position tracking control for electro‐hydraulic cylinder system. The typical mathematical model of the asymmetric cylinder electro‐hydraulic system is established as Brunovsky form. Then high‐order sliding mode observer is designed to estimate system states with only available displacement signal, and nonlinear disturbance observer is introduced to estimate and compensate for lumped disturbances including external disturbances, modeling errors and parameter uncertainties. Besides, a global fast terminal sliding mode control method is proposed to improve system convergence speed and position tracking accuracy, whose stability is proved through Lyapunov theory. Furthermore, simulations are carried out to verify the estimation performance of the designed state observer and disturbance observer, and the estimation accuracy of the disturbance observer reaches 82.71%. Finally, an asymmetric cylinder test rig is constructed and the experimental results show that the tracking accuracy of sinusoidal motion with 100 mm amplitude and step motion with 20 mm amplitude can reach 97.2% and 93.9% respectively compared with the total stroke of the motion, indicating the superiority of the designed output feedback controller. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| FullText | Links: – Type: pdflink Text: Availability: 1 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 191576650 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Position Control of Electro‐Hydraulic Actuator System With Disturbances Compensation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wang%2C+Yunfei%22">Wang, Yunfei</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ding%2C+Haigang%22">Ding, Haigang</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> haierdhg@126.com</i><br /><searchLink fieldCode="AR" term="%22Man%2C+Jiaxiang%22">Man, Jiaxiang</searchLink><relatesTo>4</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energy+Science+%26+Engineering%22">Energy Science & Engineering</searchLink>. Feb2026, Vol. 14 Issue 2, p831-842. 12p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Sliding+mode+control%22">Sliding mode control</searchLink><br />*<searchLink fieldCode="DE" term="%22Tracking+control+systems%22">Tracking control systems</searchLink><br />*<searchLink fieldCode="DE" term="%22Observability+%28Control+theory%29%22">Observability (Control theory)</searchLink><br />*<searchLink fieldCode="DE" term="%22Actuators%22">Actuators</searchLink><br />*<searchLink fieldCode="DE" term="%22Nonlinear+control+theory%22">Nonlinear control theory</searchLink><br />*<searchLink fieldCode="DE" term="%22Lyapunov+stability%22">Lyapunov stability</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This paper proposes a new output feedback controller based on global fast terminal sliding mode with disturbances rejection to achieve accurate position tracking control for electro‐hydraulic cylinder system. The typical mathematical model of the asymmetric cylinder electro‐hydraulic system is established as Brunovsky form. Then high‐order sliding mode observer is designed to estimate system states with only available displacement signal, and nonlinear disturbance observer is introduced to estimate and compensate for lumped disturbances including external disturbances, modeling errors and parameter uncertainties. Besides, a global fast terminal sliding mode control method is proposed to improve system convergence speed and position tracking accuracy, whose stability is proved through Lyapunov theory. Furthermore, simulations are carried out to verify the estimation performance of the designed state observer and disturbance observer, and the estimation accuracy of the disturbance observer reaches 82.71%. Finally, an asymmetric cylinder test rig is constructed and the experimental results show that the tracking accuracy of sinusoidal motion with 100 mm amplitude and step motion with 20 mm amplitude can reach 97.2% and 93.9% respectively compared with the total stroke of the motion, indicating the superiority of the designed output feedback controller. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=191576650 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/ese3.70384 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 831 Subjects: – SubjectFull: Sliding mode control Type: general – SubjectFull: Tracking control systems Type: general – SubjectFull: Observability (Control theory) Type: general – SubjectFull: Actuators Type: general – SubjectFull: Nonlinear control theory Type: general – SubjectFull: Lyapunov stability Type: general Titles: – TitleFull: Position Control of Electro‐Hydraulic Actuator System With Disturbances Compensation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wang, Yunfei – PersonEntity: Name: NameFull: Ding, Haigang – PersonEntity: Name: NameFull: Man, Jiaxiang IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20500505 Numbering: – Type: volume Value: 14 – Type: issue Value: 2 Titles: – TitleFull: Energy Science & Engineering Type: main |
| ResultId | 1 |