Query: A soft switching power factor correction interleaved AC-DC boost converter

Candidate papers:

abstract: In this paper, a novel soft switching power factor correction (PFC) interleaved AC DC boost converter is proposed. In the proposed novel converter, all of the semiconductor devices operate with soft switching. The main switches turn on with zero voltage transition (ZVT) and turn off with zero current transition (ZCT) without any extra voltage or current stresses. Auxiliary switch turns on with zero current switching (ZCS) and turns off with zero voltage switching (ZVS) Besides, the main diodes turn on with zero voltage switching (ZVS) and turns off with ZCS without any extra voltage or current stresses. Owing to interleaved structure, the ripple of the input current and output voltage is reduced. So, power factor quality is significantly good. The output current and voltage are controlled in wide line and load range. The theoretical analysis of converter is clarified and the operating modes are given in detail. The simulation results of converter are obtained for 1.5 kW and 100 kHz. It is observed that the semiconductor devices operate with soft switching (SS) perfectly. Also, the novel proposed converter has 0.99 power factor with sinusoidal current shape.
author_names: Naim Suleyman Ting

Yakup Sahin

Ismail Aksoy
title: A soft switching power factor correction interleaved AC DC boost converter
venue: 2016 10th International Conference on Compatibility, Power Electronics and Power Engineering (CPE POWERENG)
year: 2016

abstract: This paper presents a single phase ac dc ac converter with high frequency isolation, which employs the interleaved technique. The proposed converter is suitable for power quality applications, such as dynamic voltage restorers, uninterruptable power supplies, and voltage regulators. The modeling of power flow is presented, focusing on the minimization of the transformer current. This analysis is improved by the introduction of the actuators type concept, which ensures reduced current through the transformer. Moreover, the effective longitudinal inductance of the series association of the boost inductor and two interphase transformers is determined. The soft switching regions are also obtained as well as their dependency on the phase shift angle. The proposed converter is compared with one indirect ac dc ac topology, which uses the dual active bridge converter as the isolation stage. Experimental results are obtained to show that the proposed converter is able to provide power factor correction, mitigate voltage sags, and regulate the output voltage.
author_names: Olympio Cipriano da Silva Filho

Bruno R de Almeida

Demercil de Souza Oliveira Junior

Tobias Rafael Fernandes Neto
title: High Frequency Isolated AC DC AC Interleaved Converter for Power Quality Applications
venue: IEEE Transactions on Industry Applications
year: 2018

abstract: This paper presents a single phase ac dc ac converter with high frequency isolation, which employs the interleaved technique. The proposed converter is suitable for power quality applications, such as dynamic voltage restorers, uninterruptable power supplies, and voltage regulators. The modeling of power flow is presented, focusing on the minimization of the transformer current. This analysis is improved by the introduction of the actuators type concept, which ensures reduced current through the transformer. Moreover, the effective longitudinal inductance of the series association of the boost inductor and two interphase transformers is determined. The soft switching regions are also obtained as well as their dependency on the phase shift angle. The proposed converter is compared with one indirect ac dc ac topology, which uses the dual active bridge converter as the isolation stage. Experimental results are obtained to show that the proposed converter is able to provide power factor correction, mitigate voltage sags, and regulate the output voltage.
author_names: Olympio C Silva Filho

Bruno Ricardo de Almeida

Demercil de Souza Oliveira Junior

Tobias Rafael Fernandes Neto
title: High Frequency Isolated AC DC AC Interleaved Converter for Power Quality Applications
year: 2018

abstract: This work presents the operation and design of a high power factor power supply. A good power factor is obtained using, as a preregulator circuit, an AC DC boost power converter interleaved using a nondissipative snubber and operating at a frequency of 100 kHz per cell. By using interleaved power converters, one can obtain an overall reduction of the boost inductor, together with reduced switching losses. A nondissipative snubber associated with the forward converter providing the soft commutation switching is used as the DC DC power converter. It also is presented. The output voltage is controlled by PWM with a constant frequency. The complete operating principles, theoretical analysis, relevant equations and simulation results are presented. Experimental results of a prototype rated at 500 watts, with an input AC voltage of 150 Vrms and, an output of 50 Vdc has been implemented in laboratory.
author_names: J A Correa Pinto

A A Pereira

Valdeir J Farias

Luiz C de Freitas

J B Jr Vieira
title: A high frequency switching power supply with power factor correction using a preregulator AC DC interleaved boost with soft commutation
venue: ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics
year: 1997

abstract: This project presents a three phase unity power factor single stage ac dc converter based on an interleaved topology. High power factor and high conversion efficiency can be achieved by a simple single stage circuit with soft switching features. This converter achieves both power factor correction and output voltage regulation in a single stage of power conversion. Some of the main characteristics of the converter are low voltage stress in the main devices, lower total harmonic distortion (THD) when compared with the single switch boost rectifier, small number of components, simple control, and low cost. The proposed rectifier can produce input currents that do not have dead band regions with high PFC, operate with a continuous output current, and minimize the input electromagnetic interference filter size. This converter enjoys natural power factor correction with low line current harmonic distortion and symmetric high frequency voltage and current waveforms while ensuring zero voltage switching for all the switches for a wide variation in load and line voltage. The simulation results are carried proposed topology is evaluated through DC Motor and to analysis by using MATLAB/SIMULINK software simulation results are conferred.
author_names: Rose Swapna

Rosaiah Mudigondala
title: Control of Three Phase Interleaved PFC AC DC Converter fed DC Motor
year: 2016

abstract: This paper proposes a novel single phase single stage ac dc converter with high frequency isolation and power factor correction. Unlike the two stage ac dc converters, the high frequency pulsating voltage is obtained directly from the power factor correction semistage and is applied directly to the dc dc semistage. The proposed topology is designed to be operated in the continuous conduction mode (CCM) and therefore, there is no need for additional input filter. In addition, the interleaving operation helps reducing the current stress and gets a better electro magnetic interference performance. Moreover, all of the power switches in the proposed topology can achieve soft switching commutation. Furthermore, the intermediate dc link capacitor is no longer directly connected to the dc dc stage and the capacitance can be reduced greatly; therefore, the bulk capacitor is replaced by a film capacitor. Frequency characteristics and time domain analysis of the LLC resonant tank is presented in this paper to analyze the characteristics of the proposed converter. Finally, a prototype that converts universal input voltage ranging from 110 to 220 V into 400 V dc output was built and tested to verify the analysis.
author_names: Guangdi Li

Jin Xia

Kun Wang

Yan Deng

Xiangning He

Yousheng Wang
title: A Single Stage Interleaved Resonant Bridgeless Boost Rectifier with High Frequency Isolation
venue: IEEE Journal of Emerging and Selected Topics in Power Electronics
year: 2020

abstract: Abstract: The aim of the project is to develop a high power factor and efficient AC DC converter suitable for charging batteries that are used in electric vehicles. The energy conversion during the battery charging is performed by an ac/dc converter. Boost converters are generally used to realize input PFC and ac/dc conversion. In high power applications, interleaving continuous current mode PFC boost stages are used. A novel, yet simple zero voltage switching (ZVS) interleaved boost power factor correction (PFC) ac/dc converter used to charge the traction battery of an electric vehicle from the utility mains is proposed here. The proposed converter implements soft switching through a simple passive auxiliary circuit placed in between the two phases of the interleaved boost converter. This auxiliary circuit provides reactive current during the transition times of the MOSFETs to charge and discharge the output capacitors of the MOSFETs. In addition, the control system effectively optimizes the amount of reactive current required to achieve ZVS for the power MOSFETs. This optimization is crucial in this application since the converter may work at very light loads for a long period of time. The proposed converter maintains ZVS for the universal input voltage, which includes a very wide range of duty ratios.
author_names: Kaviyadharshini Sivaraman

Bhavani Vaidiyanathan
title: High Power Factor Interleaved Boost ACDC Converter with ZVS for Charging Battery Operated Vehicles
year: 2013

abstract: This paper proposes as a power factor correction pre regulator converter an AC DC interleaved boost flyback using a nondissipative snubber and operating at 100 kHz per cell. That is composed by switches working in ZCS and ZVS way, controlled by PWM. By using interleaved converters, an overall reduction of the boost inductor can be obtained, reducing switching losses without increasing current and voltage stresses. This topology has the advantages of interleaved flyback that eliminates an auxiliary source and an inductor in this configuration. The complete operating principles, theoretical analysis, relevant equations and simulation results are given to show the feasibility of the proposed power factor correction converter. Experimental results are presented in this work, with a power tested with the prototype rated at 2000 Watts.
author_names: Carlos Alberto Gallo

J A Correa Pinto

Luiz C de Freitas

Valdeir J Farias

J B Jr Vieira

Ernane Antonio Alves Coelho
title: Soft switched PWM high frequency with PFC converter using boost flyback converter interleaved
venue: 24th Annual International Telecommunications Energy Conference
year: 2002

abstract: This paper proposes a single stage light emitting diode (LED) driver with interleaving power factor correction (PFC) feature for street lighting applications. The presented circuit integrates an interleaved boost PFC converter with a half bridge type LLC resonant converter into a single stage power converter. The presented AC DC resonant converter uses interleaving methods to achieve input current shaping, and possesses soft switching functions on two active power switches to reduce their switching losses in order to increase the circuit efficiency. The proposed LED driver features low levels of input current ripple, reduced switching losses, high power factor, low total harmonics distortion (THD) of input current, and a reduced components count. Finally, a prototype driver is successfully implemented and tested to provide a 144W rated LED street lighting module with a 110V utility line input voltage. Experimental results demonstrate the feasibility of the proposed circuit.
author_names: Chun-An Cheng

Hung-Liang Cheng

Chien-Hsuan Chang

Fu-Li Yang

Tsung-Yuan Chung
title: A single stage LED driver for street lighting applications with interleaving PFC feature
venue: 2013 International Symposium on Next Generation Electronics
year: 2013

abstract: This paper introduces a new soft switching single phase power factor correction (PFC) boost converter with passive snubber. In the proposed converter, the main switch is turned on under zero current switching (ZCS) and turned off under zero voltage switching (ZVS) owing to the proposed passive snubber. Besides, the main diode is turned on under ZVS and turned off under ZCS. The proposed converter has features such as low cost, simple control, low number of element and high power density. Also, the output current and voltage are controlled by the proposed PFC converter in wide line and load range. The operating modes of the proposed converter are presented in detail. Also, the simulation results of converter are obtained for 1 kW and 100 kHz. It is observed that the new proposed converter has 0.99 power factor with sinusoidal current shape. So, power factor quality is fairly high.
author_names: Naim Suleyman Ting

Nihan Altintas
title: A soft switching single phase power factor correction AC DC boost converter with passive snubber
venue: 2017 4th International Conference on Electrical and Electronic Engineering (ICEEE)
year: 2017