Improved charge control with adjustable input power factor and optimized switching pattern for a 150 kHz three-phase buck rectifier

2008 ◽  
Author(s):  
Callaway J. Cass ◽  
Rolando Burgos ◽  
Fred Wang ◽  
Dushan Boroyevich
Keyword(s):  
Power Factor ◽  
Input Power ◽  
Charge Control ◽  
Switching Pattern ◽  
Three Phase

Reduced switch count three-phase AC-to-AC converters with input Power Factor Control

2012 ◽  
Author(s):  
Antonio L. de Lacerda ◽  
Edison R. C. da Silva ◽  
Euzeli C. Dos Santos ◽  
Cursino B. Jacobina
Keyword(s):  
Power Factor ◽  
Input Power ◽  
Three Phase ◽  
Ac Converters ◽  
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.

Experimental Investigation and Analysis of Induction Motors Operation under Single-Phasing Condition

2020 ◽  
Vol 8 (2) ◽  
pp. 90-99
Author(s):  
Basim Alsayid
Keyword(s):  
Experimental Investigation ◽  
Induction Motor ◽  
Power Factor ◽  
Induction Motors ◽  
Input Power ◽  
Comparative Approach ◽  
Protective Device ◽  
Three Phase ◽  
Unbalanced Voltage ◽  
Factor Input

A three-phase induction motor will continue to operate when a disturbance of some sort causes the source voltages of the motor to become unbalanced. When an induction motor is operated at unbalanced voltage supply the performance characteristics like efficiency, power factor, input power, output power and losses are affected.  The single-phasing occurs when one phase fails as a result of a fuse blowing, protective device opening on one phase of the motor, open phase on one terminal of the motor or other causes. This paper will analyze the operation of a 3-phase induction motor under normal balanced source voltages first, then under single phasing experimentally in order to follow a comparative approach.

scholarly journals A New Three-Phase Boost-Type Voltage Regulator With Unity Input Power Factor

2000 ◽  
Vol 120 (12) ◽  
pp. 1501-1507 ◽  
Author(s):  
T. S. Radwan ◽  
A. E. Lashine ◽  
M. A. Rahman
Keyword(s):  
Power Factor ◽  
Input Power ◽  
Voltage Regulator ◽  
Three Phase
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