Comprehensive Study of Single-Phase AC-DC Power Factor Corrected Converters With High-Frequency Isolation

2011 ◽  
Vol 7 (4) ◽  
pp. 540-556 ◽  
Author(s):  
Bhim Singh ◽  
Sanjeev Singh ◽  
Ambrish Chandra ◽  
Kamal Al-Haddad
Keyword(s):  
Power Factor ◽  
High Frequency ◽  
Single Phase ◽  
Dc Power ◽  
Comprehensive Study

Proposal of a 5kVA single-phase on-line UPS with high frequency isolation and power factor correction

2009 ◽  
Author(s):  
Rene P. T. Bascope ◽  
Carlos G. C. Branco ◽  
Cicero M. T. Cruz ◽  
Eduardo F. de Oliveira ◽  
Gean J. M. Sousa
Keyword(s):  
Power Factor ◽  
High Frequency ◽  
Single Phase ◽  
Power Factor Correction ◽  
On Line

A Novel Single Phase bridgeless AC/DC PFC converter for Low Total Harmonics Distortion and High Power Factor

2018 ◽  
Vol 9 (1) ◽  
pp. 17
Author(s):  
Santhi Mary Antony ◽  
Godwin Immanuel
Keyword(s):  
Power Factor ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Experimental System ◽  
Pi Controller ◽  
Current Loop ◽  
Nonlinear Loads ◽  
Dc Power ◽  
High Power Factor ◽  
Lc Filter

Now day’s the power factor has become a major problem in power system to improve the power quality of the grid, as power factor is affected on the grid due to the nonlinear loads connected to it. Single phase bridgeless AC/DC power factor correction (PFC) topology to improve the power factor as well as the total harmonic distortion (THD) of the utility grid is proposed. By removing the input bridge in conventional PFC converters, the control circuit is simplified; the total harmonics distortion (THD) and power factor (PF) are improved. The PI controller operates in two loops one is the outer control loop which calculates the reference current through LC filter and signal processing. Inner current loop generates PWM switching signals through the PI controller. The output of the proposed PFC topology is verified for prototype using MATLAB circuit simulations. The experimental system is developed, and the simulation results are obtained.

scholarly journals Single Phase AC to DC Isolated ZETA Power Factor Correction Converter fed LED drives

2020 ◽  
pp. 73-80
Author(s):  
S. T. Siddharthan ◽  
Andrew Jones ◽  
S. Kathikeyan
Keyword(s):  
Power Factor ◽  
High Frequency ◽  
Single Phase ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
Supply System ◽  
Unity Power Factor ◽  
Current Harmonic ◽  
High Frequency Transformer ◽  
Bridge Rectifier

This paper deals with PFC-isolated Zeta converter fed LED drive to overcome the power factor problems. The proposed circuit topology consists of diode bridge rectifier and isolated Zeta converter with high frequency transformer. A single –phase supply is used to feed a DBR followed by a filter to avoid any switching ripple in DBR and the supply system. An isolated Zeta converter is operated to work under DCM mode. This combination of DBR and PFC converter is used to feed a LED drive. This converter is simulated in MATLAB platform. This converter provides better results such as unity power factor and less current harmonic distortion.

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