Current waveform distortion in power factor correction circuits employing discontinuous-mode boost converters

Author

Liu, Kwang-Hwa ; Lin, Yung-Lin

Author_Institution

ITT PowerSystems Corp., Tucson, AZ, USA

fYear

1989

fDate

26-29 Jun 1989

Firstpage

825

Abstract

For active power factor correction circuits employing discontinuous-mode boost converters, the line current will automatically follow the sinusoidal line-voltage waveform. However, due to the modulation of the input inductor current discharging time, there is certain distortion in the AC line-current waveform. It is found that the modulation of inductor current discharging time is a function of the line voltage and the output voltage of the boost converter. For practical design considerations, the waveform distortion and the maximum power factor achievable are derived and presented in a graph form as functions of the ratio of line voltage to output voltage

Keywords

electric distortion; power convertors; power factor; AC line-current waveform; active power factor correction circuits; discontinuous-mode boost converters; input inductor current discharging time; waveform distortion; Active circuits; Active inductors; Load flow; Passive circuits; Power factor correction; Power supplies; Reactive power; Rectifying circuits; Switching circuits; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1989. PESC '89 Record., 20th Annual IEEE

Conference_Location

Milwaukee, WI

Type

conf

DOI

10.1109/PESC.1989.48565

Filename

48565