Modeling and analysis of common-mode voltages generated in medium voltage PWM-CSI drives

Author

Rodríguez, José ; Morán, Luis ; Pontt, Jorge ; Osorio, Ruben ; Kouro, Samir

Author_Institution

Electron. Eng. Dept., Univ. Tecnica Federico Santa Maria, Valparaiso, Chile

Volume

18

Issue

3

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

873

Lastpage

879

Abstract

Common-mode voltages appear in pulse-width modulated current-source inverters (PWM-CSIs) drives due to the operating principles of the input rectifier and the output inverter. This paper presents the modeling and analysis of a medium voltage current-source inverter drive, using the Matlab software. Simulated results of the model are in close agreement with experimental waveforms obtained from an industrial AC drive, which shows overvoltages of up to 100%, generating important insulation stresses at the motor stator terminals.

Keywords

AC motor drives; DC-AC power convertors; PWM invertors; circuit analysis computing; electric machine analysis computing; MV CSI; Matlab; PWM current-source inverters; common-mode voltages; computer simulation; industrial AC motor drives; input rectifier; insulation stresses; motor stator terminals; operating principles; output inverter; overvoltages; AC generators; Insulation; Mathematical model; Medium voltage; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Rectifiers; Stress; Surges;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2003.810855

Filename

1198067