Results 111 to 120 of about 13,609 (184)

ANN Optimised RPWM Technique for Minimisation of Conducted EMI in Three-Phase Voltage Source Inverters

open access: yesPower Electronics and Drives
Sinusoidal pulse width modulation (SPWM) is a conventional control technique for three-phase voltage source inverters (VSIs), but it often introduces electromagnetic interference (EMI) and acoustic noise in connected induction loads.
Halidu Abdul Mumin   +2 more
doaj   +1 more source

Analytical Modelling and Verification of Bus-Clamping Modulation Technique for Switched-Capacitor Converter

open access: yesModelling and Simulation in Engineering, 2017
Space vector modulation techniques have advantages of high output voltages and reduced harmonic content as they utilize the dc bus effectively. Bus-clamped pulse width modulation classified in space vector techniques has the ability to reduce the ...
Amarnath Yalavarthi, Akbar Ahmad
doaj   +1 more source

Vectorial formalism for analysis and design of polyphase synchronous machines [PDF]

open access: yes, 2003
A vectorial formalism for analysis and design of polyphase synchronous machines without reluctance and saturation effects is described. We prove the equivalence of such a machine with a set of magnetically independent machines, which are electrically and
BOUSCAYROL, Alain   +2 more
core   +5 more sources

Transmission of Stereo Audio Signals with Lasers [PDF]

open access: yes, 2014
An alternative method for transmitting audio signals via the use of laser technology was presented here. The primary focus of this document is on the audio amplifier subsystem including the design, simulation, and performance results. Simulations using
Curbow, William Austin
core   +1 more source

Harmonic elimination by switching angle optimization technique for multilevel inverter [PDF]

open access: yes, 2019
The needs for a free harmonic and high rating power source is increased to meet the required industry applications. In this project, a 7-level Cascaded H-Bridge Multilevel Inverter (CHBMLI) with two various controllers are presented.
Altayib Sahhouk, Masoud Albasheer
core   +1 more source

Analysis of two level and three level inverters [PDF]

open access: yes, 2010
The power electronics device which converts DC power to AC power at required output voltage and frequency level is known as inverter. Inverters can be broadly classified into single level inverter and multilevel inverter.
Mohanty, Piyus, Sahoo, Saransh
core  

A novel transformer-less eleven-level inverter with optimized Buck–Boost controller and minimal switch design for grid-connected PV systems

open access: yesAutomatika
This study introduces an innovative hybrid power quality system designed to address power quality issues in grid-connected photovoltaic (PV) systems. The system features a transformer-less eleven-level inverter and integrates an optimized Buck–Boost (BBC)
N. Gowtham   +3 more
doaj   +1 more source

Coconut dehusker machine [PDF]

open access: yes, 2017
Generally, coconut is dehusked manually using either a machete or a spike. These methods required skill labor and tiring to use. Attempts made so far in development of dehusking tools have been only partially successful and not effective in replacing ...
Che Mat, Faez   +5 more
core  

Time-Domain, Steady-State Torque Calculation of Voltage-Source Pulse-Width-Modulated Inverter Fed Induction Motors [PDF]

open access: yes
Evaluation of torque pulsation associated with the harmonics of pulse width modulated (PWM) inverter-fed drives is important, particularly at low speed.
Hsu, J.S.
core  

Simulation model of the mono-phased inverter with pulses width modulation [PDF]

open access: yes, 2003
The article presents a model of pulse width modulation based on the assessment of a certain harmonic content of the inverter synthetic voltage. The commutation moments of the pulses (with the same amplitude but with different widths) are computed in the ...
Cremenescu, Gh.
core  

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