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213 articles for “DC motor”
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Research ArticleOpen accessEvery word in the titleArtificial Neural Network Based Rotor Capacitive Reactance Control for Energy Efficient Wound Rotor Induction MotorK. Ranjith Kumar, S. Palaniswami, K. Siva KumarProblem statement: The Rotor reactance control by inclusion of external capacitance in the rotor circuit has been in recent research for improving the performances of Wound Rotor Induction Motor (WRIM). The rotor capacitive reactance is adjusted such that for any desired load torque the efficiency of the WRIM is maximized. The rotor external capacitance can be controlled using a dynamic … …Journal of Computer Science, Vol. 8, Issue 7 · 26 May 2012 · 7,162 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSimplified Modeling, Analysis and Simulation of Permanent Magnet Brushless Direct Current Motors for Sensorless OperationE. Kaliappan, C. ChellamuthuProblem statement: In this study, a simplified modeling and experimental analysis of Permanent Magnet Brushless DC (PMBLDC) motors for Sensorless operation using MATLAB/SIMULINK. This model provides a mechanism for monitoring and controlling the voltage, current, speed and torque response. Approach: BLDC motor is modeled as sub-blocks. The inverter and switching function are implemented as S-function builder block. The Sensorless scheme … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 16 May 2012 · 7,643 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFunctional Recovery of Upper Limb Post-Stroke: Mental Practice with Motor and Non-Motor ImageryAline Furtado Bastos, Beatriz Cantanhede Carrapatoso, Marco Orsini et al.Problem statement: Mental Practice (MP) with motor imagery consists of a method of training in which motor imagery is used to improve performance. The aim of this study was to investigate the efficacy of MP with motor imagery on motor recovery of the paretic upper limb of post-stroke patients in comparison with MP with non-motor imagery. Approach: Four post-stroke patients … …Current Research in Medicine, Vol. 3, Issue 1 · 29 Mar 2012 · 9,215 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMultiresolution Analysis Based Effective Diagnosis of Induction MotorsHouda Ben Attia Sethom, Mediha Ajjabi GhedamsiProblem statement: Effective detection and localization of unbalance voltage supply affecting an induction motor may be compromised in presence of additionnal noise. Approach: In order to overcome the non possibility of the default detection and localization in presence of noise, the use of the discrete wavelet transform and especially the MultiResolution Analysis algorithm, to remove efficiently the noise associated to … …American Journal of Applied Sciences, Vol. 9, Issue 5 · 20 Feb 2012 · 8,102 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDynamic Partial Reconfiguration Contribution on System on Programmable Chip Architecture for Motor Drive ImplementationHedi Abdelkrim, Slim Ben Othman, Ahmed Karim Ben Salem, Slim Ben SaoudProblem statement: Nowadays, Reconfigurable System on Chip (RSoC) shows great potential in many high performance applications that benefit from Hardware customization. Approach: In this study, we present a design approach of FPGA based Controller for electromechanical system. In this way, we present solutions obtained by Hardware/Software Code sign methodology targeted for the implementation of a motor control drive system using … …American Journal of Engineering and Applied Sciences, Vol. 5, Issue 1 · 18 Feb 2012 · 8,978 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDesign and Simulation of a Soft Switched Dc Boost Converter for Switched Reluctance MotorX. Felix Joseph, S. Pushpa KumarProblem statement: This study presents the design and simulation of a soft switched boost converter for a switched reluctance motor with a closed loop controller. A soft switching scheme is proposed in the converter with minimum components, which reduces the switching loss and stress across the switch so that the harmonic generation is reduced in the output. The switch used … …American Journal of Applied Sciences, Vol. 9, Issue 3 · 2 Feb 2012 · 7,176 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMotor Imagery and Stroke Neurorehabilitation: An Overview of Basic Concepts and Therapeutic EffectsAmanda Lopes Abbas, Marina Fortuna Lucas, Silmar Teixeira et al.Problem statement: Motor Imagery (MI), which corresponds to an active process during which the representation of a specific action is internally reproduced into working memory without any motor output. It represents the result of conscious access to the content of a movement intention, which is usually performed unconsciously during movement preparation. Approach: This review study aims to provide information on … …Neuroscience International, Vol. 2, Issue 2 · 21 Jan 2012 · 7,587 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGenotoxic Profile of Motor Garage WorkersNandan M. Shastri, Hemlata PantProblem statement: One way to study the effects on an exposed population is to conduct monitoring studies, using relevant biological parameters with a short term manifestation, such as cytogenetic analysis express the damages to the DNA or to the chromosomes resulting from exposure can be identified. The present study was thus designed to elucidate the effect motor garage environment on … …American Journal of Infectious Diseases, Vol. 7, Issue 3 · 15 Oct 2011 · 8,001 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOptimized High Frequency Signal Injection Based Permanent Magnet Synchronous Motor Rotor Position Estimation Applied to Washing MachinesOlfa Bel Hadj Brahim Kechiche, Houda Ben Attia Sethom, Hafedh Sammoud, Ilhem Slama BelkhodjaProblem statement: This study investigates a novel optimized scheme of a High Frequency Signal Injection (HFSI) based sensor less technique in order to carry out a precise and robust rotor position error estimation of a Permanent Magnet Synchronous Motor (PMSM) drive designed for washing machines. The study was carried out for standstill condition, where precise position information was required for … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 3 · 29 Sep 2011 · 9,514 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleClassifying Single Trail Electroencephalogram Using Gaussian Smoothened Fast Hartley Transform for Brain Computer Interface during Motor ImageryV. B. Deepa, P. Thangaraj, S. ChitraProblem statement: Brain-Computer Interface (BCI) is a emerging research area which translates the brain signals for any motor related actions into computer understandable signals by capturing the signal, processing the signal and classifying the motor imagery. This area of work finds various applications in neuroprosthetics. Mental activity leads to changes of electrophysiological signals like the Electroencephalogram (EEG) or Electrocorticogram (ECoG). … …Journal of Computer Science, Vol. 7, Issue 5 · 7 May 2011 · 6,658 accessesView PDFCite