A three-phase zero-current-transition and quasi-zero-voltage-transition inverter/rectifier with reduced stresses on devices and components

2013 ◽  
Author(s):  
Elena A. Makovenko
Keyword(s):  
Zero Current ◽  
Three Phase ◽  
Current Transition ◽  
Zero Voltage

scholarly journals A Novel Three-Phase Six-Switch PFC Rectifier with Zero-Voltage-Switching and Zero-Current-Switching Features

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1119 ◽  
Author(s):  
Chun-Wei Lin ◽  
Chang-Yi Peng ◽  
Huang-Jen Chiu
Keyword(s):  
Switching Loss ◽  
Modeling And Analysis ◽  
Zero Voltage Switching ◽  
Current Switching ◽  
Zero Current Switching ◽  
Zero Current ◽  
Three Phase ◽  
The One ◽  
Zero Voltage ◽  
Voltage Switching

A novel three-phase power-factor-correction (PFC) rectifier with zero-voltage-switching (ZVS) in six main switches and zero-current-switching (ZCS) in the auxiliary switch is proposed, analyzed, and experimentally verified. The main feature of the proposed auxiliary circuit is used to reduce the switching loss when the six main switches are turned on and the one auxiliary switch is turned off. In this paper, a detailed operating analysis of the proposed circuit is given. Modeling and analysis are verified by experimental results based on a three-phase 7 kW rectifier. The soft-switched PFC rectifier shows an improvement in efficiency of 2.25% compared to its hard-switched counterpart at 220 V under full load.

Single-Switch Soft-Switched Boost Power Factor Corrector for Modular Applications

2016 ◽  
Vol 7 (2) ◽  
pp. 279
Author(s):  
Tomas A. Gonzalez ◽  
Daniel O. Mercuri ◽  
Hernan E. Tacca ◽  
Maximo E. Pupareli
Keyword(s):  
Power Factor ◽  
High Power ◽  
High Efficiency ◽  
Magnetic Components ◽  
Dc Power ◽  
Zero Current ◽  
Three Phase ◽  
Power Factor Corrector ◽  
Zero Voltage ◽  
Efficiency And Reliability

Modern dc power supplies provide power factor correction but the classical two-stage approach, using hard-switched preregulators, has detrimental effects on efficiency and reliability, particularly for high power applications. With some circuit modifications and the addition of a few magnetic components, diodes and capacitors, we have turned a classical boost power factor corrector into a high efficiency soft-switched version. The proposed converter turns on its single switch with zero current and turns it off with zero voltage. In this paper we explain the proposed changes, we study the waveforms and equations and we verify them with an experimental prototype. We also show how the converter can be used for modular single- and three-phase high power applications.<br /><br />

SOFT-SWITCHING PWM CONVERTER TECHNOLOGIES

1995 ◽  
Vol 05 (04) ◽  
pp. 531-558 ◽  
Author(s):  
GUICHAO HUA ◽  
FRED C. LEE
Keyword(s):  
Power Conversion ◽  
Soft Switching ◽  
Resonant Converters ◽  
Pwm Converter ◽  
Square Wave ◽  
Pwm Converters ◽  
Zero Current ◽  
Current Transition ◽  
Conversion Technologies ◽  
Zero Voltage

The switched-mode power conversion technologies have evolved from the basic PWM converters to resonant converters, quasi-resonant converters, multi-resonant converters, and most recently, to soft-switching PWM converters. In this paper, several typical resonant techniques and several soft-switching PWM techniques are reviewed, and their merits and limitations are assessed. The resonant techniques reviewed include the quasi-resonant converters, multi-resonant converters, Class-E converters, and resonant dc link converters; and the soft-switching PWM techniques reviewed include the zero-voltage-switched (ZVS) quasi-square-wave converters, ZVS-PWM converters, zero-current-switched PWM converters, zero-voltage- transition PWM converters, and zero-current-transition PWM converters.

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