Results 21 to 30 of about 157,953 (310)

Experimental comparison between proportional and PWM-solenoid valves controlled servopneumatic positioning systems [PDF]

open access: yes, 2017
The performance of the Dynamical Adaptive Backstepping-Sliding Mode Control (DAB-SMC) scheme for positioning of a pneumatic cylinder regulated by two types of PWM-solenoid valves is experimentally investigated.
Abd. Rahman, Ramhuzaini   +1 more
core   +1 more source

Two-step commutation control of switched reluctance motor based on PWM

open access: yesThe Journal of Engineering, 2019
Aiming at the noise suppression of switched reluctance machine (SRM), the two-step commutation control method is improved. Combining this with pulse width modulation (PWM), the optimisation problem of the switching angle is studied and analysed and given
Chuan Yu   +3 more
doaj   +1 more source

FPGA Based Speed Control of a Separately Excited DC Motor [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2010
An armature voltage control is used to control the supplied voltage of an armature of a 2 kW separately excited DC motor. A buck regulator is used to vary the supplied voltage of the motor.
Maan Shaker, Nasseer Basheer, Qusay Ali
doaj   +1 more source

Mutual Enrichment in Ranked Lists and the Statistical Assessment of Position Weight Matrix Motifs [PDF]

open access: yes, 2013
Statistics in ranked lists is important in analyzing molecular biology measurement data, such as ChIP-seq, which yields ranked lists of genomic sequences. State of the art methods study fixed motifs in ranked lists.
Leibovich, Limor, Yakhini, Zohar
core   +3 more sources

Influence of PWM on the proximity loss in permanent magnet brushless AC machines [PDF]

open access: yes, 2008
The winding copper loss can be significantly increased due to skin and proximity eddy current effects. The skin and proximity losses due to fundamental frequency current has been investigated in literature, but the influence of PWM on the skin and ...
Bremner, J.   +5 more
core   +1 more source

Jitter Elimination at Optical Control of Servomotors

open access: yesAdvances in Electrical and Electronic Engineering, 2014
The article describes the application of microcontroller PIC18F25K22 to servomechanism electronics built – in the model of car. Model is controlled optically, in the infrared part of the spectrum. Used microcontroller is optimal for this application – it
Radek Novak, Karel Witas
doaj   +1 more source

Model Predictive Control for Spacecraft Rendezvous in Elliptical Orbits with On/Off Thrusters [PDF]

open access: yes, 2015
IFAC Workshop on Advanced Control and Navigation for Autonomous Aerospace Vehicles. 08/06/2015. SevillaIn previous works, the authors have developed a trajectory planning algorithm for spacecraft rendezvous which computed optimal Pulse-Width Modulated ...
Camacho, Eduardo F.   +2 more
core   +1 more source

WIDE RANGE MODULATION INDEXES FEATURED CARRIER-BASED PWM STEPPED WAVEFORM FOR HALF-BRIDGE MODULAR MULTILEVEL CONVERTERS

open access: yesInternational Islamic University Malaysia Engineering Journal, 2018
: This paper presents simulation results of the influence of wide range modulation index values ( ) in carrier-based PWM strategy for application in generating the stepped waveform.
Majdee Tohtayong   +5 more
doaj   +1 more source

Analysis and Simulation of Unmanned Aircraft Propeller Motor Using PSIM [PDF]

open access: yesEngineering and Technology Journal, 2018
The study and simulation of a PI speed controller for small UAV or quadcopter motor is discussed in this research. The motor under consideration is MAXON 2260 215, which is a brushless DC motor that has permanent magnets on the rotating part and the ...
Ahmed Yousif, Ammar Mohammed
doaj   +1 more source

Analysis and Simulation of Shunt Active Power Filter For Harmonic Cancellation of Non Linear Loads [PDF]

open access: yesEngineering and Technology Journal, 2010
Use of nonlinear loads, such as power converters, power sources,uninterruptible power supply (UPS) units, and arc devices like electric furnaces and fluorescent lamps and large adjustable speed motor drives, is expected to grow rapidly.
Ahmed M. Mohammed
doaj   +1 more source

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