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CLC number: TP273.31

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Received: 2003-08-20

Revision Accepted: 2003-12-05

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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.11 P.1413-1417


Nonlinear control for a class of hydraulic servo system

Author(s):  YU Hong, FENG Zheng-jin, WANG Xu-yong

Affiliation(s):  School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China

Corresponding email(s):   mailyu@sina.com

Key Words:  Nonlinear system, Electro hydraulic servo system, Robust control, Backstepping, Lyapunov function

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YU Hong, FENG Zheng-jin, WANG Xu-yong. Nonlinear control for a class of hydraulic servo system[J]. Journal of Zhejiang University Science A, 2004, 5(11): 1413-1417.

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The dynamics of hydraulic systems are highly nonlinear and the system may be subjected to non-smooth and discontinuous nonlinearities due to directional change of valve opening, friction, etc. Aside from the nonlinear nature of hydraulic dynamics, hydraulic servo systems also have large extent of model uncertainties. To address these challenging issues, a robust state-feedback controller is designed by employing backstepping design technique such that the system output tracks a given signal arbitrarily well, and all signals in the closed-loop system remain bounded. Moreover, a relevant disturbance attenuation inequality is satisfied by the closed-loop signals. Compared with previously proposed robust controllers, this paper’s robust controller based on backstepping recursive design method is easier to design, and is more suitable for implementation.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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OM PRAKASH TARAM@IGKVV<omitaram238@gmail.com>

2015-07-20 14:57:53

i will be inneed of hydraulic reserch paper


2014-04-10 14:03:20

I found this will be helpful in my thesis

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