Results 11 to 20 of about 57,713 (309)

Sliding mode disturbance observer and sliding mode controller for quadrotor UAV

open access: yesJournal of Physics: Conference Series, 2022
Abstract The dynamics of quadrotor UAV is described considering internal uncertainty and external disturbance. The control system of quadrotor UAV is divided into inner loop attitude control system and outer loop position control system, In order to solve the problem of underactuated character.
Jie Chen, Hongchao Zhao
openaire   +1 more source

Sliding mode adaptive state observation for time-delay uncertain nonlinear systems [PDF]

open access: yes, 2008
In this paper a method to design robust adaptive sliding mode observers (ASMO) for a class of nonlinear time- delay systems with uncertainties, is proposed. The objective is to achieve insensitivity and robustness of the proposed sliding mode observer to
Raoufi, R., Zinober, A.S.I.
core   +1 more source

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

Improved Rotor Flux-Based SMO and RBF-PID Control Strategy for PMSM

open access: yesActuators, 2023
This paper proposes a control strategy that combines an improved flux-based sliding mode observer with a Radial Basis Function Proportional-Integral-Derivative (RBF-PID) controller for the control of Permanent Magnet Synchronous Motors (PMSM).
Weiyang Wang   +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

A novel position and velocity observer for robust control ofswitched reluctance motors [PDF]

open access: yes, 1998
A new position and velocity sensorless control algorithm for the switched reluctance motor (SRM) drive is presented, which employs a sliding mode observer technique to estimate the motor speed and rotor position.
Chan, CC, Chau, KT, Zhan, YJ
core   +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

Home - About - Disclaimer - Privacy