Results 21 to 30 of about 11,368 (242)

Actuator fault reconstruction using FDI system based on sliding mode observers [PDF]

open access: yesINCAS Bulletin, 2022
Interplanetary space missions require spacecraft autonomy in order to fulfill the mission objective. The fault detection and isolation (FDI) system increases the level of autonomy and can ensure the safety of the spacecraft by detecting and isolating ...
Florin-Adrian STANCU   +1 more
doaj   +1 more source

Simulation research of the second order sliding mode observer of sensorless permanent magnet synchronous motor

open access: yesGong-kuang zidonghua, 2014
For eliminating chattering caused by traditional sliding mode observer used in sensorless control of permanent magnet synchronous motor, a sliding mode observer based on the second order sliding mode control method was proposed to estimate position and ...
DENG Xinzhong
doaj   +1 more source

Dynamics of an impact oscillator near a degenerate graze [PDF]

open access: yes, 2010
We give a complete analysis of low-velocity dynamics close to grazingfor a generic one degree of freedom impact oscillator. This includes nondegenerate (quadratic) grazing and minimallydegenerate (cubic) grazing, corresponding respectively to ...
D R J Chillingworth   +2 more
core   +1 more source

Chattering: an overlooked peculiarity of rocking motion [PDF]

open access: yes, 2022
Complete chattering occurs when a structure undergoes a theoretically infinite sequence of impacts in finite time, that eventually bring the structure to the state of persistent (continuous) contact.
Giouvanidis, Anastasios   +2 more
core   +1 more source

A New Backstepping Sliding Mode Guidance Law Considering Control Loop Dynamics [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2016
In this paper, a new procedure for designing the guidance law considering the control loop dynamics is proposed. The nonlinear guidance loop entailing a first order lag as the control loop dynamics is formulated. A new finite time and smooth backstepping
Vahid Behnamgol   +2 more
doaj  

Intelligent Adaptive Jerk Control With Dynamic Compensation Gain for Permanent Magnet Linear Synchronous Motor Servo System

open access: yesIEEE Access, 2020
In this paper, an intelligent adaptive jerk control (IAJC) with dynamic compensation gain for the permanent magnet linear synchronous motor (PMLSM) servo system was proposed to improve robustness and tracking performance against nonlinear and time ...
Hao Yuan, Ximei Zhao, Dongxue Fu
doaj   +1 more source

Design a Second Order Sliding Mode Controller for Electrical Servo Drive Systems [PDF]

open access: yesEngineering and Technology Journal, 2019
The aim of this paper is to design and study a powerful second-order sliding mode controller for electrical servo drive systems. The suggested controller can successfully overcome the chattering problem that was usually facing such systems during ...
Shams Hashim, Ahmed Hamoudi
doaj   +1 more source

Second-order sliding mode control of time delay systems [PDF]

open access: yesActa Montanistica Slovaca, 2003
The contribution of the paper is a proposal of the second-order sliding mode control of time delay systems developed analogously to the first-order version.
Fišer Jaromír, Zítek Pavel
doaj  

Finite Time Thrust Vector Tracker based on a New Smooth Second Order Adaptive Sliding Mode Controller [PDF]

open access: yesInternational Journal of Research and Technology in Electrical Industry
This paper introduces a novel adaptive second-order sliding mode algorithm for finite-time control of uncertain nonlinear systems. Traditional first-order sliding modes are hindered by chattering and dependence on the upper bound of uncertainty. Although
Mohammad Asadi   +2 more
doaj   +1 more source

Model-Based SMC Strategy for Speed Control With a Sensorless Load-Torque SM Observer: Analysis and Experimental Validation Using an IM

open access: yesIEEE Access
This article investigates speed control of ac motors under load-torque uncertainty by employing the model-based sliding-mode control (MBSMC). Since using sensors reduces the reliability of the control and increasing the cost, a sensorless sliding-mode ...
Mohammad Tavakoli bina   +2 more
doaj   +1 more source

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