disturbance observer based nonlinear control for overhead cranes subject to uncertain disturbances

Disturbance-observer-based nonlinear control for overhead … May 01, 2020 · 1) To the best of our knowledge, this is the first finite time disturbance observer-based nonlinear control method for the regulation and disturbance rejection of the crane system. 2) Because of the exact compensation of the designed disturbance observer, uncertain disturbances could be completely removed from the system output in finite time. Disturbance-observer-based nonlinear control for overhead … The regulation and disturbance rejection problems of the underactuated overhead crane system in the presence of uncertain disturbances are considered in this paper. A novel nonlinear control method, along with a finite time disturbance observer, is proposed for the crane system. Disturbance-observer-based nonlinear control for overhead … The regulation and disturbance rejection problems of the underactuated overhead crane system in the presence of uncertain disturbances are considered in this paper. A novel nonlinear control method, along with a finite time disturbance observer, is proposed for the crane system. Different from existing control methods, one important feature of the proposed method is that uncertain disturbances … Disturbance-observer-based nonlinear control for overhead … Disturbance-observer-based nonlinear control for overhead cranes subject to uncertain disturbances. Highlights•A finite time nonlinear control method, along with a finite time disturbance observer, is proposed for the crane control.•The disturbance can be estimated in finite time and the closed-loop system’s states are convergent in finite time.•The proposed method is continuous …
 Disturbance-observer-based nonlinear control for overhead …

(PDF) Observer-Based Nonlinear Robust Control of Floating … Observer-Based Nonlinear Robust Control of Floating Container Cranes Subject to Output Hysteresis Article (PDF Available) in Journal of Dynamic Systems Measurement and Control 141(11) · June 2019 … Robust Disturbance Rejection Based Control with Extended … May 21, 2019 · In this paper, the problem of load transportation and robust mitigation of payload oscillations in uncertain tower-cranes is addressed. This problem is tackled through a control scheme based on the philosophy of active-disturbance-rejection. Here, a general disturbance model built with two dominant components: polynomial and harmonic, is stated. Then, a disturbance observer is formulated … (PDF) Adaptive Fuzzy Observer based Hierarchical Sliding Mode … based hierarchical sliding mode control for uncertain 2D overhead cranes, Cyber-Physical Systems, DOI: 10.1080/23335777.2019.1607908 To link to this article: https://doi.or g/10.1080/23335777.2019 … Nonsingular fast terminal sliding‐mode control for nonlinear … Xianqing Wu, Kexin Xu, Xiongxiong He, Disturbance-observer-based nonlinear control for overhead cranes subject to uncertain disturbances, Mechanical Systems and Signal Processing, 10.1016/j.ymssp.2020.106631, 139, (106631), (2020). Combined control with sliding mode and partial feedback … Xianqing Wu, Kexin Xu, Xiongxiong He, Disturbance-observer-based nonlinear control for overhead cranes subject to uncertain disturbances, Mechanical Systems and Signal Processing, 10.1016/j.ymssp.2020.106631, 139, (106631), (2020).

An Energy-based Nonlinear Coupling Control for Offshore Ship … Jun 10, 2018 · In addition to having such typical nonlinear underactuated property, as it is well known, an offshore ship-mounted crane also suffers from much unexpected persistent disturbances induced by sea waves or currents, which, essentially different from an overhead crane fixed on land, cause much difficulty in modeling and controller design. Modeling and energy-based fuzzy controlling for underactuated … Most existing models for overhead cranes take a geodetic coordinate system as the reference coordinate system, for which it is usually difficult to prove the stability of the system when persistent external disturbances exist. 45 In this article, we build a mathematical model of overhead cranes with load transferring, lowering, and persistent external disturbances. An LMI-Based Simple Robust Control for Load Sway Rejection of … In the double-pendulum rotary crane case, the load sway properties become more complicated so that the difficulty of design and analysis of crane control system is increased. Moreover, the change of rope length not only affects the stability of the system, but also leads to the decline of control performance. In order to solve the foregoing problems, a simple model for controller design is … Disturbance-observer-based antiswing control of underactuated … In this study, based on the finite-time sliding mode control method, an antiswing control law is designed for the underactuated crane systems in two-dimensional space with external disturbance. The finite-time disturbance observer is utilised to estimate the external disturbance and develop the finite-time control law. An Energy-based Nonlinear Coupling Control for Offshore Ship … Jun 10, 2018 · In addition to having such typical nonlinear underactuated property, as it is well known, an offshore ship-mounted crane also suffers from much unexpected persistent disturbances induced by sea waves or currents, which, essentially different from an overhead crane fixed on land, cause much difficulty in modeling and controller design.
 An Energy-based Nonlinear Coupling Control for Offshore Ship …

Real-Time Robust and Optimized Control of a 3D Overhead Crane … A new and advanced control system for three-dimensional (3D) overhead cranes is proposed in this study using state feedback control in discrete time to deliver high performance trajectory tracking with minimum load swings in high-speed motions. By adopting the independent joint control strategy, a new and simplified model is developed where the overhead crane actuators are used to design the … Robust Tracking Control of a Quadrotor UAV Based on Adaptive … In this paper, a robust adaptive sliding mode control scheme is developed for attitude and altitude tracking of a quadrotor unmanned aerial vehicle (UAV) system under the simultaneous effect of parametric uncertainties and consistent external disturbance. The underactuated dynamic model of the quadrotor UAV is first built via the Newton–Euler formalism. Considering the nonlinear and … Uncertainty and Disturbance Estimator–Based Control for … Robust Control of Uncertain Nonlinear Systems With State Delays Based on an Uncertainty and Disturbance Estimator Int. J. Robust Nonlinear Control 1049-8923, to be published. Robust Constrained Trajectory Tracking Control for Quadrotor … In this paper, a trajectory tracking control scheme for a quadrotor unmanned aerial vehicle (UAV) under unknown external disturbance and input saturation is developed. This scheme On Convergence of the Nonlinear Active Disturbance Rejection … (2018) Sliding Mode Control of the Penicillin Fermentation System Based on Nonlinear Disturbance Observer. 2018 IEEE 7th Data Driven Control and Learning Systems Conference (DDCLS) , 714-717. (2018) Robust Flat Filtering Control of a Nonlinear Manipulator-Direct Current Motor System.

On Convergence of the Nonlinear Active Disturbance Rejection … (2016) Extended state observer for uncertain lower triangular nonlinear systems subject to stochastic disturbance. Control Theory and Technology 14 :3, 179-188. (2016) Robust flat filtering DSP based control of the boost converter.

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