scholarly journals Vibrating coordinates frame transformation based unity power factor control of a three-phase converter at grid voltage imbalance and harmonics

2021 ◽  
pp. 1-1
Author(s):  
Sebastian Wodyk ◽  
Grzegorz Iwanski
Keyword(s):  
Power Factor ◽  
Unity Power Factor ◽  
Grid Voltage ◽  
Three Phase ◽  
Phase Converter ◽  
Frame Transformation ◽  
Power Factor Control

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 Soft-Switching Circuit for Three-Phase Converter with Unity Power Factor.

1997 ◽  
Vol 117 (2) ◽  
pp. 142-149 ◽  
Author(s):  
Katsunori Taniguchi ◽  
Katsuya Hirachi ◽  
Hisaichi Irie
Keyword(s):  
Power Factor ◽  
Soft Switching ◽  
Switching Circuit ◽  
Unity Power Factor ◽  
Three Phase ◽  
Phase Converter
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