Results 111 to 120 of about 42,783 (242)

On abolishing symmetry requirements in the formulation of a five-level selective harmonic elimination pulse-width modulation technique [PDF]

open access: yes, 2006
Selective harmonic elimination pulse width modulation (SHE-PWM) techniques offer a tight control of the harmonic spectrum of a given voltage waveform generated by a power electronic converter along with a low number of switching transitions.
Agelidis, V.G.   +2 more
core   +1 more source

Optimized Dual ANN Control Technique for Efficient Energy Management System (EMS) of Microgrid

open access: yesEnergy Science &Engineering, EarlyView.
Proposed methodology. ABSTRACT The escalating global energy demand necessitates a shift towards sustainable and environmentally friendly alternatives. While renewable energy sources like solar and wind energy offer promising solutions, their intermittent nature poses significant challenges for grid integration.
Bin Li   +5 more
wiley   +1 more source

Impact of PWM strategies on RMS current of the DC-link Voltage Capacitor of a dual-three phase drive [PDF]

open access: yes, 2014
The major drawback of usual dual three-phase AC machines, when supplied by a Voltage Source Inverter (VSI), is the occurrence of extra harmonic currents which circulate in the stator windings causing additional losses and constraints on the power ...
DUGUEY, Jean-François   +2 more
core   +4 more sources

A Low‐Cost and Compact High‐Frequency Gallium Nitride Gradient Power Amplifier for Low‐Field MRI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To reduce the upfront cost of small, low‐field MRI systems, while expanding the capabilities of their gradient systems. Methods A gradient power amplifier was designed to leverage the lowering cost of Gallium Nitride (GaN) power transistors and high speed logic, to achieve high efficiency and responsiveness for driving gradient coils ...
N. Reid Bolding   +7 more
wiley   +1 more source

ANN Controller Based Single phase Inverter in Smart City

open access: yesInternational Transactions on Electrical Engineering and Computer Science, 2023
Solar-grid integration is a method for incorporating large amounts of photovoltaic (PV) supply to the grid. Advanced inverter technology, smart grids technology, islanding detection technology, solar-grid forecasting technology, grid-plant protection ...
HyunHo Park
doaj  

CARRIER BASED PWM TECHNIQUE AND ADAPTIVE NEURAL NETWORK BASED ROTOR RESISTANCE ESTIMATOR FOR THE PERFORMANCE ENHANCEMENT OF VECTOR CONTROLLED INDUCTION MOTOR DRIVES

open access: yesThe Journal of Engineering Research, 2019
In this paper, the carrier based Pulse Width Modulation (PWM) technique and neural network based rotor resistance estimator are proposed for vector controller Induction motor (IM) drives. The popular sine PWM is used for induction motor drive.
Venkadesan A
doaj   +1 more source

IMPLEMENTASI PULSE WIDTH MODULATION (PWM) PADA SISTEM BLENDING KACANG MENGGUNAKAN SENSORLOADCELL BERBASIS MIKROKONTROLER

open access: yesJURNAL TEKNISI, 2021
Penelitian ini bertujuan untuk mempermudah pedagang membuat saus kacang menggunakan teknologi komputer, maka diperlukan sistem yang digunakan sebagai penentu waktu penghalusan dan pencampuran kacangdengan air. Dalam hal ini akan diterapkan suatu teknik Pulse Width Modulation (PWM). PWMitu sendiri adalah suatu teknik modulasi dengan mengubah lebar pulsa
openaire   +2 more sources

A hybrid multilevel converter for medium and high voltage applications [PDF]

open access: yes, 2010
This paper investigates the suitability of the hybrid multilevel converter for medium and high voltage application. The converter operation, modulation, and capacitor voltage balancing method are described in detail.
Adam, Grain Philip   +4 more
core  

DUAL THREE-PHASE ADJUSTABLE SPEED DRIVE WITH SYNCHRONIZED SPACE-VECTOR MODULATION

open access: yesProblems of the Regional Energetics, 2008
Split-phase symmetrical motor drive on the base of two voltage source inverters, controlled by algorithms of synchronized pulse width modulation (PWM), has been investigated.
Oleschuk V.I.   +3 more
doaj  

Design and implementation of a three-level single-phase H-bridge inverter using SHE-PWM

open access: yesDiscover Electronics
The need to generate a pure sinusoidal signal with very low Total Harmonic Distortion (THD) motivates the search for the most effective modulation technique among existing methods.
Jalil Akaaboune   +3 more
doaj   +1 more source

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