Results 11 to 20 of about 2,010,715 (317)

Sensorless position control of permanent magnet motors with pulsating current injection and compensation of motor end-effects [PDF]

, 2011
The sensorless position control of permanent-magnet motors is successfully implemented by superimposing a high-frequency voltage signal on the voltage reference or adding a high-frequency current signal to the current reference.
G Pellegrino, CUPERTINO, Francesco, Pellegrino G, Cupertino, F., SALVATORE L., Pellegrino, Gian-Mario Luigi, CUPERTINO F, Giangrande, P., P Giangrande, Salvatore, L., GIANGRANDE P, L Salvatore, PELLEGRINO, GIAN - MARIO LUIGI, F Cupertino   +13 more
core   +1 more source

Development of lower-limb rehabilitation exercises using 3-PRS Parallel Robot and Dynamic Movement Primitives

Multidisciplinary Journal for Education, Social and Technological Sciences, 2020
The design of rehabilitation exercises applied to sprained ankles requires extreme caution, regarding the trajectories and the speed of the movements that will affect the patient.
Rafael J. Escarabajal, Fares J. Abu-Dakka, José L. Pulloquinga, Vicente Mata, Marina Vallés, Ángel Valera   +5 more
doaj   +1 more source

Position Control of Quadrotor UAV Based on Cascade Fuzzy Neural Network

Energies, 2022
In this article, a cascade fuzzy neural network (FNN) control approach is proposed for position control of quadrotor unmanned aerial vehicle (UAV) system with high coupling and underactuated.
Jinjun Rao, Bo Li, Zhen Zhang, Dongdong Chen, Wojciech Giernacki   +4 more
doaj   +1 more source

Distributed control of positive systems [PDF]

IEEE Conference on Decision and Control and European Control Conference, 2011
A system is called positive if the set of non-negative states is left invariant by the dynamics. Stability analysis and controller optimization are greatly simplified for such systems. For example, linear Lyapunov functions and storage functions can be used instead of quadratic ones.
openaire   +3 more sources

FPGA-Based Hybrid Stepper Motor Drive System Design by Variable Structure Control

Actuators, 2021
A stepper motor is usually operated in position open-loop control for simplicity. However, in order to improve the transient and steady-state performances of the stepper motor-based drive system, a high performance stepper motor drive system is usually ...
Chiu-Keng Lai, Bo-Wei Lin, Hsiang-Yueh Lai, Guan-You Chen   +3 more
doaj   +1 more source

Investigation of X and Y Configuration Modal and Dynamic Response to Velocity Excitation of the Nanometer Resolution Linear Servo Motor Stage with Quasi-Industrial Guiding System in Quasi-Stable State

Mathematics, 2021
Research institutions and industrial enterprises demand high accuracy and precision positioning systems to fulfil cutting edge requirements of up-to-date technological processes in the field of metrology and optical fabrication.
Artur Piščalov, Edgaras Urbonas, Darius Vainorius, Jonas Matijošius, Artūras Kilikevičius   +4 more
doaj   +1 more source

Positive state controllability of positive linear systems [PDF]

Systems & Control Letters, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chris Guiver, Dave Hodgson, Stuart Townley   +2 more
openaire   +3 more sources

Study of Dynamic Performance and Control Strategy of Variable Stiffness Actuator System Based on Two-Inertial-System

Mathematics, 2023
The study of position control for variable stiffness actuators is important for improving their energy efficiency and robustness. In this paper, for the previously proposed nonlinear variable stiffness actuator, firstly, a dynamic model of the variable ...
Zemin Yang, Xiaopeng Li, Jinchi Xu, Renzhen Chen, Hexu Yang   +4 more
doaj   +1 more source

Backstepping Based Formation Control of Quadrotors with the State Transformation Technique

Applied Sciences, 2017
In this paper, a backstepping-based formation control of quadrotors with the state transformation technique is proposed. First, the dynamics of a quadrotor is derived by using the Newton–Euler formulation. Next, a backstepping-based formation control for
Keun Uk Lee, Yoon Ho Choi, Jin Bae Park
doaj   +1 more source

Design and Position Control of Overhang-Type Rail Mover Using Dual BLAC Motor

Energies, 2021
This paper presents the design and position control scheme of an overhang-type rail mover system driven by a dual Brushless AC (BLAC) motor with a simple Hall position sensor inside each motor.
Kiwan Cho, Dong-Hee Lee
doaj   +1 more source