Diode and thyristor turn-off snubbers simulation by KREAN and an easy to use design algorithm

Author

Undeland, Tore M. ; Petterteig, A. ; Hauknes, Gundy ; Adnanes, Alf K. ; Garberg, Stig

Author_Institution

Dept. of Electr. & Comput. Eng., Norwegian Inst. of Technol., Trondheim, Norway

fYear

1988

fDate

2-7 Oct. 1988

Firstpage

647

Abstract

RC snubbers must be used for limiting the overvoltages at the diode or thyristor reverse recovery transients. This is true for the application range from line frequency conversion to the output rectifiers in switched-mode DC power supplies. An insight into the mechanism of the turn-off waveforms is obtained by simulations and calculations, and the tradeoffs between overvoltages and losses are presented. An easy-to-use nomogram for the selection of the snubber components is given. A computer program dedicated for power electronic circuit analysis under development, KREAN, is used for the simulations, and is briefly described.<>

Keywords

circuit analysis computing; digital simulation; overvoltage protection; semiconductor diodes; thyristors; KREAN; RC snubbers; computer program; design algorithm; diode; losses; nomogram; overvoltage; power electronic circuit analysis; reverse recovery transients; switched-mode DC power supplies; thyristor; turn-off snubbers simulation; turn-off waveforms; Circuit analysis computing; Circuit simulation; Computational modeling; Diodes; Frequency conversion; Rectifiers; Snubbers; Surges; Switched-mode power supply; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1988., Conference Record of the 1988 IEEE

Conference_Location

Pittsburgh, PA, USA

Type

conf

DOI

10.1109/IAS.1988.25131

Filename

25131