New power factor correction and current harmonic mitigation for AC variable reluctance generator with DC excitation

2003 ◽  
Author(s):  
D. Tsukerman ◽  
R. Rabinovici
Keyword(s):  
Power Factor ◽  
Power Factor Correction ◽  
Current Harmonic ◽  
Variable Reluctance ◽  
Dc Excitation ◽  
Harmonic Mitigation

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 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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