AC line current variation on a three-phase PWM drive with AC line impedance

Author

Schieman, R.G. ; Khuwatsamrit, T.

Author_Institution

Reliance Electr. Co., Athens, GA, USA

fYear

1990

fDate

7-12 Oct. 1990

Firstpage

1067

Abstract

The AC line current to a fully loaded, three-phase pulse-width modulation (PWM) drive varies with the AC line impedance. The PWM drive consists of a three-phase diode bridge supplying DC power to a bus capacitor and an inverter. The lower the per-phase line inductance, the greater the RMS AC line input current. AC line current peak, and harmonic currents. Results from a computer study that tabulated the RMS current and harmonics are presented. The study considers the effect of reduced line current due to diode current commutation with higher line inductance. Data from a laboratory test set-up are tabulated and confirm the results.<>

Keywords

commutation; electric drives; harmonics; invertors; pulse width modulation; AC line current variation; AC line impedance; DC power; RMS AC line input current; bus capacitor; computer study; diode bridge; diode current commutation; harmonic currents; inverter; pulse-width modulation; three-phase PWM drive; Bridges; Capacitors; Diodes; Impedance; Inductance; Laboratories; Power supplies; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE

Conference_Location

Seattle, WA, USA

Print_ISBN

0-87942-553-9

Type

conf

DOI

10.1109/IAS.1990.152316

Filename

152316