Wide input voltage range high power density high efficiency 10 kW three-phase three-level unity power factor PWM rectifier

2003 ◽  
Author(s):  
J. Minibock ◽  
J.W. Kolar
Keyword(s):  
Power Density ◽  
Power Factor ◽  
High Power ◽  
High Efficiency ◽  
Input Voltage ◽  
High Power Density ◽  
Pwm Rectifier ◽  
Unity Power Factor ◽  
Voltage Range ◽  
Three Phase

scholarly journals Modelling of three phase SVPWM AC-AC converter using unity power factor control

2019 ◽  
Vol 10 (4) ◽  
pp. 1823
Author(s):  
Saidah Saidah ◽  
Hari Sutiksno ◽  
Bambang Purwahyudi ◽  
Taufik Taufik
Keyword(s):  
Power Factor ◽  
Pulse Width Modulation ◽  
High Efficiency ◽  
Input Voltage ◽  
Input Power ◽  
Current Waveform ◽  
Unity Power Factor ◽  
Dc Voltage ◽  
Three Phase ◽  
Power Factor Control

This paper introduces the modelling of a novel three phase AC-AC converter with indirect use of a capacitor as DC voltage link. The proposed converter has high efficiency because it uses Space Vector PWM (SVPWM) technique at both rectificier and inverter stages to operate the pulse width modulation in IGBT switches. The novel converter is equipped with a power factor control to shape the rectifier input current waveform to be sinusoidal and to be in phase with the input voltage. To keep the DC voltage stable, the converter utilizes PI controllers. Simulations are conducted for output voltage from 120 to 300 Volts with output frequency ranging from 30 Hz to 60 Hz. The simulation results show that the converter is able to maintain stable the DC voltage and current. Furthermore, the model demonstrates the benefits of proposed converter in terms of acquiring high input power factor and sinusoidal current waveform at the output side of the inverter.

scholarly journals Power Quality Improved Single Stage High Gain DC to DC Converter

2019 ◽  
pp. 308-313
Author(s):  
B Kunjithapatham ◽  
S. Gnanapragash
Keyword(s):  
Power Density ◽  
Power Factor ◽  
High Power ◽  
Feedback Linearization ◽  
High Efficiency ◽  
Low Cost ◽  
Power Conversion ◽  
High Power Density ◽  
Magnetizing Current ◽  
Single Power

This project presents a single-switch single power-conversion (S3PC) power factor correction (PFC) converter. The control algorithm derived from feedback linearization enables the S3PC converter to obtain good controllability. The proposed converter performs both PFC control and output power control through single power-conversion. The S3PC converter provides high efficiency and high power factor in excess of 0.994.. The proposed converter is able to offer low cost and high power density in step up application due to the following features: ZCS turn-on and ZVS turn-off of switch and ZCS turn-off of diodes regardless of voltage and load variation; low rated lossless snubber; reduced transformer volume compared to fly back based converters due to low magnetizing current. The proposed converter is able to offer high power density in step-up application because of its simple structure; low rated lossless snubber; reduced transformer volume compared to isolation based converters due to low magnetizing current. The proposed converter is capable to stabilize the output efficiency. Experimental results are provided to validate the proposed concept. The Simulation is done with the help of MATLAB Software using Simulink.

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