Power factor improvement and voltage harmonics reduction in pulse width modulation AC chopper using bee colony optimization

W Khamsen, A Aurasopon… - IETE Technical …, 2013 - Taylor & Francis
This paper presents a new pulse width modulation (PWM) switching technique for a single
phase AC chopper. In the proposed technique, the switching frequency is fixed and the …

Analysis and control of a single phase AC chopper in series connection with an auto-transformer

H Liu, J Wang - 18th international conference on automation …, 2012 - ieeexplore.ieee.org
In this paper, a novel topology of single phase AC chopper is presented. The AC chopper
has the structure of a combined conventional AC chopper in series connection with an auto …

Multilevel direct PWM AC-AC converters

B Glod, L Parvulescu, D Floricau - 2017 10th International …, 2017 - ieeexplore.ieee.org
Due to an increase in power demand, different direct AC-AC conversion structures were
developed. Classical direct converters present the disadvantage of a high harmonic content …

Capacity uplift in low voltage distribution networks using a novel AC/AC power electronic converter

A Amiri - 2023 - repository.lboro.ac.uk
In order to achieve net zero by 2050 in the UK,“Future Energy Scenarios” by the National
Grid ESO predict an excessive shift from fossil fuels to more sustainable and green energy …

A novel feeding topology for DC electric arc furnaces utilizing PWM‐AC choppers

AD Kolagar, A Shoulaie - International Transactions on …, 2014 - Wiley Online Library
The main contribution of this paper is the study of a new feeding system for direct current
(DC) electric arc furnaces. This system includes pulse‐width modulation‐alternating current …

[PDF][PDF] Improvement of APWM Switching Function with Positive Saw-tooth Waveform for AC Choppers

C Summatta, S Sonasang - Journal of Advanced Development in …, 2023 - ph03.tci-thaijo.org
In AC chopper circuits, the improvement of the input power factor is the Asymmetrical Pulse
Width Modulation (APWM). The modulation signal of APWM has two conventional operation …

[PDF][PDF] Technical Review

T Engineers - IETE Technical Review, 2009 - researchgate.net
Wireless communication systems have evolved over the ages. However, there are some
undesirable effects of a wireless communication channel on the signals transmitted through …

[PDF][PDF] Nouvelles Topologies des convertisseurs AC/AC

DMK Mamen Hocine - archives.univ-biskra.dz
Résumé La conversion alternatif–alternatif directe est un domaine de l'électronique de
puissance dans lequel la technologie thyristor est actuellement la plus utilisée. Cette …

[PDF][PDF] Dynamic analysis and modeling of ac/ac power converters for applications to smart-grid solutions

K Alexandros - 2015 - repository.kulib.kyoto-u.ac.jp
Power electronics field is adapting rapidly to the needs of the new era of power systems
which include smart-grid applications, renewable resources and so on. It is important for the …

SIMULAÇÃO E PROTOTIPAGEM DE UM CONTROLE DE TEMPERATURA EM MALHA FECHADA PARA CHUVEIROS ELÉTRICOS

MG BERNARDO, RCS FREIRE… - … de Automática-CBA, 2019 - sba.org.br
Neste trabalho, propõe-se um controle de temperatura de malha fechado visando o
aquecimento de água em chuveiros elétricos, que tem como restrição baixo custo, pequeno …