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.

SINGLE-STAGE SINGLE-SWITCHED RECTIFIER/REGULATOR WITH MAGNETIC COUPLED NONDISSIPATIVE SNUBBER

2004 ◽  
Vol 13 (03) ◽  
pp. 557-576
Author(s):  
CHUNG-WOOK ROH ◽  
GUN-WOO MOON ◽  
MYUNG-JOONG YOUN
Keyword(s):  
Power Factor ◽  
Power Supply ◽  
Power Factor Correction ◽  
Power Level ◽  
Harmonic Distortion ◽  
Voltage Regulation ◽  
Single Stage ◽  
Unity Power Factor ◽  
Forward Converter ◽  
Current Harmonic

This paper presents a new single-stage single-switched forward converter with magnetic coupled nondissipative snubber, which gives good power factor correction (PFC), low current harmonic distortion, and tight output voltage regulation. The proposed converter features low switch current and voltage stresses, essential for the design of a single-stage power factor correction converter. The prototype shows that the IEC1000-3-2 requirements are met satisfactorily with nearly unity power factor. This proposed converter with magnetic coupled nondissipative snubber is particularly suited for power supply applications with low power level.

scholarly journals Design, Simulation and Analysis of Single Phase AC to DC Cuk Converter Fed Led Applications

2020 ◽  
pp. 49-56
Author(s):  
R. Kalai Priya
Keyword(s):  
Power Factor ◽  
Fuzzy Logic Control ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Paper Analysis ◽  
Unity Power Factor ◽  
Cuk Converter ◽  
Logic Control ◽  
Bridge Rectifier ◽  
Hysteresis Control

This paper analysis with PFC Cuk converter fed LED drive to overcome the power factor problems. The proposed circuit topology consists of diode bridge rectifier and Cuk converter. Cuk converter is operated to work under CCM mode. This combination of DBR and PFC converter is used to feed a LED drive. This converter is simulated in MATLAB software. This Cuk converter provides better results such as unity power factor and low current harmonic distortion with fuzzy logic control and hysteresis control.

The Effects of Total Harmonics Distortion for Power Factor Correction at Non-Linear Load

2016 ◽  
Vol 7 (2) ◽  
pp. 551 ◽  
Author(s):  
R. A. Rani ◽  
Shakir Saat ◽  
Yusmarnita Yusop ◽  
Huzaimah Husin ◽  
F. K. Abdul Rahman ◽  
...  
Keyword(s):  
Power Factor ◽  
Single Phase ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
The Other ◽  
Linear Load ◽  
Non Linear ◽  
Sinusoidal Waveform ◽  
Non Linear Load ◽  
The Relationship

This paper presents the effect of total harmonic distortion (THD) in power factor correction (PFC) at non-linear load. This study focuses on the relationship between THD and PFC. This is beacuse,the power factor affects THD. This occurs in power system as we have variety of loads, i. e linear load or non-linear load. The variety of loads will influence the sinusoidal waveform, which comes out from harmonic distortion. Thus, based on this study, we can compare the effective method in improving the power factor as it will not disturb the performance of THD. The focus of study is on the single phase load, where the voltage restriction is 240 V.  The analysis will  only focus on the consumer, which depends on the variety of non-linear load. Besides, the parameters for analysis are based on the percentage of THD and the value of power factor. The instrument for measuring the parameter is based on power factor correction device or technique. On the other hand, the method that was used for this study is based on simulation which incorporated the Multisim software. At the end of ths study, we can choose the most effective method that can be used to improve the power factor correction without disturbing the THD.

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

scholarly journals Performance Between PFC Cuk and Bridgeless PFC Cuk Converter with Various Output Voltages

2019 ◽  
Vol 8 (2S2) ◽  
pp. 41-46
Keyword(s):  
Low Power ◽  
Power Factor ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Input Current ◽  
Unity Power Factor ◽  
Cuk Converter ◽  
Maximum Current ◽  
Simulation Results ◽  
Power Application

This paper presents about the comparison between single-phase PFC Cuk converter and bridgeless PFC (BPFC) Cuk converter for low power application. This study attempts to investigate the characteristics of conventional and bridgeless PFC Cuk converter structures with three different output voltages and verified by the simulation results. The BPFC Cuk converter provides a lower Total Harmonic Distortion (THD) of input current than the conventional PFC Cuk converter. However, the conventional PFC Cuk converter has advantage of less maximum current stress at components compared to the BPFC Cuk converter. Conventional and BPFC Cuk converter can achieve an approximately unity power factor (PF).

A Novel Power Factor Correction Modified Bridge Less-CUK Converter for LED Lamp Applications

2016 ◽  
Vol 7 (3) ◽  
pp. 880
Author(s):  
Saravanan D ◽  
Gopinath M
Keyword(s):  
Power Factor ◽  
Power Supply ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
Quality Indices ◽  
Power Utility ◽  
Cuk Converter ◽  
Bridge Rectifier ◽  
Converter Design ◽  
Efficient Power

In recent decades, several research works have been focused on the efficient Power Factor Correction (PFC) converter design in to meet the power supply efficiency. Conventional PFC cuk converter widely uses the full bridge rectifier which had resulted in overall increase of converter losses and inefficiency. This paper is intended to develop a novel PFC Bridgeless cuk converter for LED lamp applications. In this work, the limitations of the conventional PFC Cuk converter are resolved. The major contributions of the proposed work include the minimization in the number of conduction devices and minimization of the power utility devices which in turn resulted in minimal losses and better efficiency. Moreover, the proposed converter works in DCM which requires only one voltage sensor which results in reduced cost. The proposed Modified BL Cuk converter (MBL-CUK) for LED lamp is simulated in MATLAB and the corresponding results show the better power quality indices such as power factor and Total Harmonic Distortion.

Three-phase 15kVA UPS system with power factor correction and high frequency transformer isolation

2009 ◽  
Author(s):  
Rene P. T. Bascope ◽  
Carlos G. C. Branco ◽  
Cicero M. T. Cruz ◽  
Gilberto F. S. Filho ◽  
Luiz D. S. Bezerra
Keyword(s):  
Power Factor ◽  
High Frequency ◽  
Power Factor Correction ◽  
High Frequency Transformer ◽  
Three Phase
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