An adaptive fuzzy dead-zone compensation scheme and its application to electro-hydraulic systems

Bessa, Wallace Moreira; Dutra, Max Suell; Kreuzer, Edwin

doi:10.1590/s1678-58782010000100001

Cited by 11 publications

(9 citation statements)

References 20 publications

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“…Especially in the case when big flow rate valve is needed, the valve should be chosen big enough, which increases the overlap area, thus the dead-zone nonlinearity increases. A spool displacement model is adopted [10,20,21] , as shown in Figure 2.…”

Section: System Modelingmentioning

confidence: 99%

“…Sliding mode variable structure control is shown to be an effective way to reject disturbance in electro-hydraulic systems [9] . Furthermore, adaptive sliding mode control [10] can deal with modeling error and nonlinearities, but the fast switching on the sliding surface may cause chattering which can degrade the closed-loop performance. A lot of methods [11,12] are proposed to solve the chattering problem but the common point among these is that tracking precision is compromised when chattering is suppressed.…”

Section: Introductionmentioning

confidence: 99%

“…A lot of methods [11,12] are proposed to solve the chattering problem but the common point among these is that tracking precision is compromised when chattering is suppressed. Intelligent control such as fuzzy control [10] and neural network [13] are alternative approaches. These methods do not need a sophisticated model, but the need of high computational effort has limited the usage of these methods.…”

Section: Introductionmentioning

confidence: 99%

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Adaptive robust dead-zone compensation control of electro-hydraulic servo systems with load disturbance rejection

Wang

Hao

2014

J Syst Sci Complex

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A backstepping method based adaptive robust dead-zone compensation controller is proposed for the electro-hydraulic servo systems (EHSSs) with unknown dead-zone and uncertain system parameters. Variable load is seen as a sum of a constant and a variable part. The constant part is regarded as a parameter of the system to be estimated real time. The variable part together with the friction are seen as disturbance so that a robust term in the controller can be adopted to reject them. Compared with the traditional dead-zone compensation method, a dead-zone compensator is incorporated in the EHSS without constructing a dead-zone inverse. Combining backstepping method, an adaptive robust controller (ARC) with dead-zone compensation is formed. An easy-to-use ARC tuning method is also proposed after a further analysis of the ARC structure. Simulations show that the proposed method has a splendid tracking performance, all the uncertain parameters can be estimated, and the disturbance has been rejected while the dead-zone term is well estimated and compensated.

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Section: System Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Adaptive robust dead-zone compensation control of electro-hydraulic servo systems with load disturbance rejection

Wang

Hao

2014

J Syst Sci Complex

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“…Many researchers employed many methods to improve the performances of control systems with dead-zone inputs. The most common approaches are adaptive schemes [3][4][5][6], fuzzy systems [7][8][9][10][11][12][13][14], neural networks [15][16][17][18], and sliding mode control [19][20][21][22]. In order to compensate the negative effects of the dead-zone nonlinearity, an inverse dead-zone as a method is used.…”

Section: Introductionmentioning

confidence: 99%

Fuzzy Adaptive Prescribed Performance Control for a Class of Uncertain Nonlinear Systems with Unknown Dead‐Zone Inputs

Xiang

Sun

2017

Mathematical Problems in Engineering

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This paper proposes a fuzzy adaptive prescribed performance control scheme for a class of uncertain chaotic systems with unknown control gains and unknown dead-zone inputs. Firstly, an error transformation is introduced to transform the original constrained system into an equivalent unconstrained one. Then, based on the error transformation technique and the predefined performance technique, a fuzzy adaptive feedback control method is developed. It is shown that all the signals of the resulting closed-loop system are bounded. Finally, an illustrative example is given to demonstrate the effectiveness and usefulness of the proposed technique.

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“…In the previous studies, the most common varied parameter by the researchers is the supply pressure [7][8][9][10][11][12][13][14][15][16][17][18][19]. It is well known that, supply pressure plays vital role in the dynamic of an EHA system.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Parameter Variation in Open-Loop and Closed-Loop Control Scheme for an Electro-hydraulic Actuator System

Soon

Ghazali

Jaafar

et al. 2016

IJCA

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An adaptive fuzzy dead-zone compensation scheme and its application to electro-hydraulic systems

Cited by 11 publications

References 20 publications

Adaptive robust dead-zone compensation control of electro-hydraulic servo systems with load disturbance rejection

Adaptive robust dead-zone compensation control of electro-hydraulic servo systems with load disturbance rejection

Fuzzy Adaptive Prescribed Performance Control for a Class of Uncertain Nonlinear Systems with Unknown Dead‐Zone Inputs

The Effects of Parameter Variation in Open-Loop and Closed-Loop Control Scheme for an Electro-hydraulic Actuator System

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