Disturbance Rejection Control With Voltage Constraint for Electro-Hydraulic System Involving Unknown Dead-Zones and Drastic Supply Pressure Variation
In the article, we use the proportional directional valve (PDV) with unknown dead-zones to regulate the electro-hydraulic system (EHS) which has parametric uncertainties including the drastic supply pressure variation; moreover, the external disturbance occurs when the EHS works; in addition, the co...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9081954/ |
| _version_ | 1818457112191172608 |
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| author | Shengfei Liu Liwu Wang Chun Li Qinglin Sun Zengqiang Chen Mingwei Sun Xianyi Zeng |
| author_facet | Shengfei Liu Liwu Wang Chun Li Qinglin Sun Zengqiang Chen Mingwei Sun Xianyi Zeng |
| author_sort | Shengfei Liu |
| collection | DOAJ |
| description | In the article, we use the proportional directional valve (PDV) with unknown dead-zones to regulate the electro-hydraulic system (EHS) which has parametric uncertainties including the drastic supply pressure variation; moreover, the external disturbance occurs when the EHS works; in addition, the control voltage applied to the PDV is expected to satisfy the prescribed bound. All of these factors make controller design a challenging problem. The unknown dead-zones, the external disturbance, the drastic supply pressure variation and other parametric uncertainties are viewed as a total disturbance which can be estimated by the linear extended state observer (LESO). Furthermore, a novel robust disturbance rejection position controller with voltage constraints is proposed to compensate for the dead-zones and improve the tracking performance of the EHS regulated by the PDV when the drastic supply pressure variation and the external disturbance occur. The stability analysis is given to ensure that the tracking error of the closed-loop EHS regulated by the proposed controller can converge to the arbitrarily small neighborhood of the origin. Experiments are carried out to verify the effectiveness of the proposed control method. Comparative experimental results demonstrate that the proposed controller can make the load follow the reference trajectory accurately in the presence of the unknown dead-zones and the external disturbance when the supply pressure varies drastically. |
| first_indexed | 2024-12-14T22:37:23Z |
| format | Article |
| id | doaj.art-bb40d748e8884a10869cbb951a8e3c7b |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-14T22:37:23Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-bb40d748e8884a10869cbb951a8e3c7b2022-12-21T22:45:06ZengIEEEIEEE Access2169-35362020-01-018845518456810.1109/ACCESS.2020.29911629081954Disturbance Rejection Control With Voltage Constraint for Electro-Hydraulic System Involving Unknown Dead-Zones and Drastic Supply Pressure VariationShengfei Liu0Liwu Wang1Chun Li2Qinglin Sun3https://orcid.org/0000-0002-8118-2285Zengqiang Chen4https://orcid.org/0000-0002-1415-4073Mingwei Sun5Xianyi Zeng6College of Artificial Intelligence, Nankai University, Tianjin, ChinaBeijing Institute of Space Mechanics and Electricity, Beijing, ChinaBeijing Institute of Space Mechanics and Electricity, Beijing, ChinaCollege of Artificial Intelligence, Nankai University, Tianjin, ChinaCollege of Artificial Intelligence, Nankai University, Tianjin, ChinaCollege of Artificial Intelligence, Nankai University, Tianjin, ChinaGemtex Laboratory, Ecole Nationale Supérieure des Arts et Industries Textiles, Roubaix, FranceIn the article, we use the proportional directional valve (PDV) with unknown dead-zones to regulate the electro-hydraulic system (EHS) which has parametric uncertainties including the drastic supply pressure variation; moreover, the external disturbance occurs when the EHS works; in addition, the control voltage applied to the PDV is expected to satisfy the prescribed bound. All of these factors make controller design a challenging problem. The unknown dead-zones, the external disturbance, the drastic supply pressure variation and other parametric uncertainties are viewed as a total disturbance which can be estimated by the linear extended state observer (LESO). Furthermore, a novel robust disturbance rejection position controller with voltage constraints is proposed to compensate for the dead-zones and improve the tracking performance of the EHS regulated by the PDV when the drastic supply pressure variation and the external disturbance occur. The stability analysis is given to ensure that the tracking error of the closed-loop EHS regulated by the proposed controller can converge to the arbitrarily small neighborhood of the origin. Experiments are carried out to verify the effectiveness of the proposed control method. Comparative experimental results demonstrate that the proposed controller can make the load follow the reference trajectory accurately in the presence of the unknown dead-zones and the external disturbance when the supply pressure varies drastically.https://ieeexplore.ieee.org/document/9081954/Disturbance rejection controlelectro-hydraulic systemvoltage constraintunknown dead-zonesdrastic supply pressure variationlinear extended state observer |
| spellingShingle | Shengfei Liu Liwu Wang Chun Li Qinglin Sun Zengqiang Chen Mingwei Sun Xianyi Zeng Disturbance Rejection Control With Voltage Constraint for Electro-Hydraulic System Involving Unknown Dead-Zones and Drastic Supply Pressure Variation IEEE Access Disturbance rejection control electro-hydraulic system voltage constraint unknown dead-zones drastic supply pressure variation linear extended state observer |
| title | Disturbance Rejection Control With Voltage Constraint for Electro-Hydraulic System Involving Unknown Dead-Zones and Drastic Supply Pressure Variation |
| title_full | Disturbance Rejection Control With Voltage Constraint for Electro-Hydraulic System Involving Unknown Dead-Zones and Drastic Supply Pressure Variation |
| title_fullStr | Disturbance Rejection Control With Voltage Constraint for Electro-Hydraulic System Involving Unknown Dead-Zones and Drastic Supply Pressure Variation |
| title_full_unstemmed | Disturbance Rejection Control With Voltage Constraint for Electro-Hydraulic System Involving Unknown Dead-Zones and Drastic Supply Pressure Variation |
| title_short | Disturbance Rejection Control With Voltage Constraint for Electro-Hydraulic System Involving Unknown Dead-Zones and Drastic Supply Pressure Variation |
| title_sort | disturbance rejection control with voltage constraint for electro hydraulic system involving unknown dead zones and drastic supply pressure variation |
| topic | Disturbance rejection control electro-hydraulic system voltage constraint unknown dead-zones drastic supply pressure variation linear extended state observer |
| url | https://ieeexplore.ieee.org/document/9081954/ |
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