نتایج جستجو برای: phase converter

تعداد نتایج: 619443  

Journal: :IEEE Trans. Industrial Electronics 1993
Marian K. Kazimierczuk Dariusz Czarkowski Nandakumar Thirunarayan

A new phase-controlled resonant inverter is obtained by paralleling the ac loads of two identical parallel resonant inverters. A phase shift between the drive signals of the two inverters controls the amplitude of the output voltage of the new inverter. A voltage-driven rectifier is used as an ac load of the inverter which results in a phase-controlled parallel resonant dc-dc converter. A frequ...

2013
Meisam Sadeghi Mojtaba Khederzadeh

In this paper a new topology of flying capacitor based multicell converter with reduced switches has been introduced. Compared with conventional multicell converters (Flying Capacitor Multicell and Stacked Multicell converters), the proposed converter doubles the number of output voltage levels and the RMS of output voltage by canceling the midpoint of DC source while the number of high frequen...

2014
Ms. M. Ammal Dhanalakshmi Ashly Mary Tom M. Sasikumar

This paper proposes a three phase transformerless AC/AC converter which can perform both buck and boost operations based on the voltage requirements. This AC/AC converter is mainly proposed for the three phase induction motor drives with the intention to reduce the high inrush current of the conventional motor used in industrial applications. The merits of the proposed AC/AC converter can be un...

Journal: :IEEE Trans. Industrial Electronics 2000
Chern-Lin Chen Guo-Kiang Horng

A new passive 28-step current shaper for three-phase rectification is proposed in this paper. With a phase-shifting transformer on the ac side and six interphase transformers on the dc side, per-phase input current can be shaped into a 28-step sinusoidal waveform. The total harmonic distortion of ac input currents obtained is 6.54%, lower than one-half of that in a conventional 12-pulse convert...

2015

A single phase ac-dc soft switched PFC converter with a LCD snubber is presented for dc output voltage regulation. The LCD snubber cell provides zero current switching (ZCS) turn ON and zero voltage switching (ZVS) turn OFF for the converter switch without increasing current or voltage stress. In this study, steady state analysis of proposed PFC converter is presented in detail and the theoreti...

2014
Arnab Ghosh Pradip Kumar Saha Goutam Kumar Panda

In these modern research areas the Non-linear Dynamics is a very popular topic, the researchers study the nonlinear behaviour of every system which can be an industrial machine/instrument or a theoretical aspect. Prior researchers already studied the nonlinear dynamics of Current Controlled DC-DC Boost Converter. But the Power Factor Corrected Boost Converter is a circuit which is used in very ...

2000
J. Abu-Qahouq H. Wei W. Gu I. Batarseh

* This project is funded under the NASA-KSC STTR-Phase I Program. ABSTRACT A single-stage power factor correction converter with softswitching is proposed in this paper. The topology of this converter is derived by adding a resonant circuit to an existing Single-Stage, Single-Switch Power Factor Correction (S PFC) converter. As a result, zero-voltage-switching and zero-current-switching are ach...

2013
A. Gopi R. Saravanakumar

Abstract: This paper proposed a new type of converter called Single Phase Switched Inductor Z-source Matrix Converter (SLMC). It is an ac-to-ac converter with diode bridge bidirectional switch cell. The limitations of existing matrix converter like voltage regulation and quality output issues are overcome in the proposed SLMC by adding the switched inductance. The simulation is performed for di...

Journal: :Sba: Controle & Automação Sociedade Brasileira de Automatica 2012

2011
P. Hari Krishna Prasad Venu Gopal Rao

A constant voltage regulator, to supply constant power loads, is realized using a Switched-capacitor converter. Exhaustive studies have been carried out to find the suitability of available control schemes and finally one control scheme investigated with (i) operation of the converter at different crossover frequencies (ii) operation of the converter at different phase Margins. Various operatin...

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