Three-Phase Power Factor Correction Converter Based on One-Cycle Control in Aircraft Electric Power System

2010 ◽  
Vol 97-101 ◽  
pp. 2903-2908
Author(s):  
Yu Rong Nan ◽  
Na Meng
Keyword(s):  
Power System ◽  
Electric Power ◽  
Power Factor ◽  
Power Factor Correction ◽  
Input Voltage ◽  
Electric Power System ◽  
Unity Power Factor ◽  
Light Load ◽  
Three Phase ◽  
Sawtooth Waveform

Traditional three-phase PFC converters based on one-cycle control (OCC) exhibit instabi- lity at light load conditions.This will cause much more harmonic current which is harmful to the syterm.To overcome this disadvantage, this paper introduces a modified three-phase power factor correction(PFC) converter based on one-cycle control in aircraft electric power system. The input voltage multiplies a gain and its result is added to the actual sensed current,then the sum of them is compared with the sawtooth waveform to yield switching signal.This is the modified contorl mathod. Finally the MATLAB simulations at heavy and light loads as well as the transfer between them are carried. The simulation results show that the improved control circuit can achieve unity power factor and exhibit stability at light loads.

Fast time-varying phasor analysis in the balanced three-phase large electric power system

1995 ◽  
Vol 40 (11) ◽  
pp. 1975-1982 ◽  
Author(s):  
V. Venkatasubramanian ◽  
H. Schattler ◽  
J. Zaborszky
Keyword(s):  
Power System ◽  
Electric Power ◽  
Electric Power System ◽  
Fast Time ◽  
Time Varying ◽  
Three Phase ◽  
Phasor Analysis

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.

A Hybrid Three-Phase and Single-Line Operation Mode Analysis Model for an Electric Power System

2019 ◽  
Vol 3 (3) ◽  
pp. 15-23
Author(s):  
Andrey V. PAZDERIN ◽  
◽  
Nikita D. MUKHLYNIN ◽  
Pavel Yu. BANNYKH ◽  
Il’ya D. POLYAKOV ◽  
...  
Keyword(s):  
Power System ◽  
Electric Power ◽  
Operation Mode ◽  
Electric Power System ◽  
Mode Analysis ◽  
Single Line ◽  
Analysis Model ◽  
Three Phase
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