Results 11 to 20 of about 4,756 (268)

An Improved Permanent Magnet Synchronous Motor Rotor Position Observer Design Based on Error Harmonic Elimination

open access: yesMachines, 2022
An improved rotor position observer based on sliding mode control was proposed to eliminate estimation error and harmonic ripples for PMSM sensorless control.
Haiying Lv   +5 more
doaj   +1 more source

A Fuzzy Design for a Sliding Mode Observer-Based Control Scheme of Takagi-Sugeno Markov Jump Systems under Imperfect Premise Matching with Bio-Economic and Industrial Applications

open access: yesMathematics, 2022
Fuzzy theory is widely studied and applied. This article introduces an adaptive control scheme for a class of non-linear systems with Markov jump switching.
Obaid Alshammari   +4 more
doaj   +1 more source

Improved nonlinear sliding mode control based on load disturbance observer for permanent magnet synchronous motor servo system

open access: yesAdvances in Mechanical Engineering, 2016
This article presented an improved nonlinear sliding mode control based on disturbance observer for the permanent magnet synchronous motor servo system.
Rongrong Qian, Minzhou Luo, Peng Sun
doaj   +1 more source

Comparative Analysis of a Family of Sliding Mode Observers under Real-Time Conditions for the Monitoring in the Bioethanol Production

open access: yesFermentation, 2022
Online monitoring of fermentation processes is a necessary task to determine concentrations of key biochemical compounds, diagnose faults in process operations, and implement feedback controllers. However, obtaining the signals of all-important variables
Eduardo Alvarado-Santos   +5 more
doaj   +1 more source

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

open access: yesMeasurement and 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 considered to be unknown.
Chen Yunjun   +3 more
openaire   +2 more sources

Disturbance Observer-Based Robot End Constant Contact Force-Tracking Control

open access: yesComplexity, 2019
A disturbance observer-based hybrid sliding mode impedance control method is proposed in this paper, which is able to achieve robot end constant contact force-tracking control without force/torque sensors.
Tie Zhang, Xiaohong Liang
doaj   +1 more source

Extended state observer–based sliding mode learning control for mechanical system

open access: yesMeasurement + Control, 2020
A novel sliding mode learning controller is proposed for uncertain mechanical system in this paper. The model of uncertain mechanical system is listed first, and then extended state observer is designed for the estimation of the uncertainty.
Bing He   +3 more
doaj   +1 more source

Fixed Time Disturbance Observer Based Sliding Mode Control for a Miniature Unmanned Helicopter Hover Operations in Presence of External Disturbances

open access: yesIEEE Access, 2020
This paper presents a novel fixed time sliding mode disturbance observer (FTSMDO) based second-order fixed time sliding mode control (FTSMC) for small scale unmanned helicopter to do hover operations in the presence of external disturbances. Sliding mode
Ihsan Ullah, Hai-Long Pei
doaj   +1 more source

Fault Reconstruction Using Sliding Mode Observers [PDF]

open access: yesAmerican Journal of Applied Sciences, 2006
In this study, a nonlinear sliding observer is proposed to explicitly reconstruct fault signals. The novelty lies in the application of the equivalent output injection concept. Previous work in the area of fault detection has used disruption of the sliding motion to detect faults. The aim of the present study was to design a robust observer that slides
K. Hakiki   +3 more
openaire   +1 more source

Barrier Lyapunov Function-Based Sliding Mode Control for BWB Aircraft With Mismatched Disturbances and Output Constraints

open access: yesIEEE Access, 2019
This paper presents a barrier Lyapunov function based nonsingular fast terminal sliding mode control with fixed-time non-recursive disturbance observer for the blended-wing-body (BWB) aircraft in the presence of mismatched disturbances and output ...
Zhirun Chen   +3 more
doaj   +1 more source

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