نتایج جستجو برای: hierarchical structure terminal sliding mode control under actuated system

تعداد نتایج: 5347545  

2012
AHMET SOFYALI ELBROUS M. JAFAROV

Sliding mode control algorithms with classical and modified discontinuous reaching laws for purely magnetic attitude control of small satellites are proposed and compared with each other in this work. They are designed by following the steps characteristic to the variable structure control method and the magnetic attitude control problem. The asymptotical stability of the control laws is proven...

In this paper, we have exploited the first-order sliding mode control method to track the ECG data of the human heart by three different nonlinear control laws. In order to lessen the intrinsic chattering of the classic sliding mode control system, smooth function approximations of the control input, by means of the hyperbolic tangent and the saturation function, were used. The fast Fourier tra...

A. Chaari L. Chaouech M. Soltani

This article presents a fuzzy sliding-mode control scheme for a class of Takagi-Sugeno (T-S) fuzzy which are subject to norm-bounded uncertainties in each subsystem. The proposed stabilization method can be adopted to explore T-S uncertain fuzzy systems (TSUFS) with various local control inputs. Firstly, a new design is proposed to transform TSUFS into sliding-mode dynamic systems.In addi...

A. Khodayari , A. Ghaffari , B. Gharehpapagh , S. Salehinia ,

In this paper a control system has been designed to improve traffic conditions in car following maneuver. There are different methods to design a control system. In this paper design approach is based on the Fuzzy sliding mode control (FSMC) system. The aim of designing FSMC system is to achieve safe and desire longitudinal distance and less lateral displacement. In orde...

Journal: :amirkabir international journal of modeling, identification, simulation & control 2015
v. behnamgol a. r. vali i. mohammadzaman

in this paper, a new smooth second order sliding mode control is proposed. this algorithm is a modified form of super twisting algorithm. the super twisting guarantees the asymptotic stability, but the finite time stability of proposed method is proved with introducing a new particular lyapunov function. the proposed algorithm which is able to control nonlinear systems with matched structured u...

2008
T. Floquet J. P. Barbot

The concept of sliding mode control [11, 27, 32] has been extended to the problem of the state estimation by an observer, both for linear [10, 32] and nonlinear systems [1, 8, 28, 34]. Using the same design theory as variable structure control laws, the observer trajectories are constrained to evolve after a finite time on a suitable sliding manifold, by the use of a discontinuous output inject...

2014
Dezhi Xu Bin Jiang Moshu Qian Jing Zhao

We propose a terminal sliding mode control (SMC) law based on adaptive fuzzy-neural observer for nonaffine nonlinear uncertain system. First, a novel nonaffine nonlinear approximation algorithm is proposed for observer and controller design. Then, an adaptive fuzzy-neural observer is introduced to identify the simplified model and resolve the problem of the unavailability of the state variables...

Gholam Reza Arab Markadeh, Nasrin Banimehdi

This paper proposes an improved direct active and reactive power control (DPC) strategy for a grid-connected doubly fed induction generator (DFIG) based wind-turbine system under unbalanced grid voltage condition. The method produces required rotor voltage references based on the sliding mode control (SMC) approach in stationary reference frame, without the requirement of synchronous coordinate...

Journal: :international journal of robotics 0
mojtaba rostami kandroodid university of tehran faezeh farivar islamic azad university science and research branch mahdi aliyari shoorehdeli k.n. toosi university of technology maysam zamani pedram k.n. toosi university of technology

this paper presents a gaussian radial basis function neural network based on sliding mode control for trajectory tracking and vibration control of a flexible joint manipulator. to study the effectiveness of the controllers, designed controller is developed for tip angular position control of a flexible joint manipulator. the adaptation laws of designed controller are obtained based on sliding m...

Journal: :Machines 2023

Hysteresis in a piezoelectric actuator must be compensated for, and this compensation constitutes the main challenge high-precision motion control of piezo-actuated stages. This paper presents an output-feedback sliding-mode (SMC) scheme to suppress unknown nonlinearity; scheme, hysteresis behavior is considered external disturbance, complex models are thus not required. The functions absence t...

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