Results 11 to 20 of about 33,178 (299)

Universal nonlinear disturbance observer for robotic manipulators

open access: yesInternational Journal of Advanced Robotic Systems, 2023
Dynamic uncertainties and unknown disturbances will degrade the tracking performance of robots. When using a disturber observer-based controller, the key to effectively compensate for these uncertainties is to measure or estimate as accurately as ...
Feilong Zhang   +3 more
doaj   +1 more source

Adaptive Control for Multi-Shaft with Web Materials Linkage Systems

open access: yesInventions, 2021
In this paper, a fuzzy disturbance observer and a high-gain disturbance observer based on a variable structure controller are applied to deal with imprecise multi-shaft with web materials linkage systems taking into account the variation of the moment of
Van Trong Dang   +6 more
doaj   +1 more source

Variable universe adaptive fuzzy sliding mode projective synchronization of hyperjerk system based on disturbance observer

open access: yesSN Applied Sciences, 2021
In this paper, a sliding mode projective synchronization strategy based on disturbance observer and fuzzy system is presented to implement projective synchronization of hyperjerk system with low time-varying disturbance and white noise.
Baojie Zhang   +3 more
doaj   +1 more source

Output feedback sliding mode control based on adaptive sliding mode disturbance observer

open access: yesMeasurement + Control, 2022
In this paper, an adaptive sliding mode disturbance observer is designed to counteract the disturbance actively. By designing the adaptive laws, the assumptions on the disturbance are relaxed in the proposed observer, its first derivative upper bound is ...
Chen Yunjun   +3 more
doaj   +1 more source

Bipartite Containment Disturbance Rejection Using Disturbance Observers

open access: yesIEEE Access, 2022
This paper mainly addresses bipartite containment control of multi-agent systems (MASs) subject to exogenous disturbances. With dynamic gain technique independent of any global information, the disturbance observer method is applied to estimate disturbances generated by heterogeneous nonlinear exosystems.
Jie Wu 0021   +2 more
openaire   +2 more sources

A Guide to Design Disturbance Observer [PDF]

open access: yesJournal of Dynamic Systems, Measurement, and Control, 2013
The goal of this paper is to clarify the robustness and performance constraints in the design of control systems based on disturbance observer (DOB). Although the bandwidth constraints of a DOB have long been very well-known by experiences and observations, they have not been formulated and clearly reported yet.
Sariyildiz, Emre, Ohnishi, Kouhei
openaire   +3 more sources

Time-varying disturbance observer based on regulating boundary layer thickness sliding mode control for microelectromechanical systems gyroscope

open access: yesMeasurement + Control, 2022
This paper presents a robust control methodology for a microelectromechanical systems gyroscope, which named time-varying disturbance observer based on regulating boundary layer thickness sliding mode control First, the micro electromechanical systems ...
Van Nam Giap   +2 more
doaj   +1 more source

Disturbance Observers [PDF]

open access: yes, 2020
Disturbance observer is an inner-loop output-feedback controller whose role is to reject external disturbances and to make the outer-loop baseline controller robust against plant's uncertainties. Therefore, the closed-loop system with the DOB approximates the nominal closed-loop by the baseline controller and the nominal plant model with no ...
openaire   +2 more sources

NON-LINEAR OBSERVER-BASED CONTROL OF FLEXIBLE-JOINT MANIPULATORS USED IN MACHINE PROCESSING [PDF]

open access: yes, 2012
Lien vers la version éditeur: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1727347&resultClick=3This paper proposes to use a non-linear observer to build the state and the external force of flexible manipulator robots ...
ABBA, Gabriel   +5 more
core   +1 more source

Consensus Disturbance Rejection With Disturbance Observers [PDF]

open access: yesIEEE Transactions on Industrial Electronics, 2015
This paper deals with consensus disturbance rejection of network-connected dynamic systems using disturbance observers. The control objective of consensus disturbance rejection is to achieve a common state trajectory for the network-connected subsystems that are under deterministic disturbances.
openaire   +2 more sources

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