Some design aspects of fully and partially regenerative active snubber networks

Author

Braz, Cesar A. ; Vandelac, Jean-Pierre ; Ziogas, Phoivos D.

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

fYear

1992

fDate

9-13 Nov 1992

Firstpage

330

Abstract

Analytical expressions predicting the energy trapped in snubber network components are developed. These expressions are then used to evaluate the effectiveness of frequently used low-loss snubber networks under full and partial energy recovering conditions. Results show that the additional complexity of a fully regenerative active snubber is not always justified. Depending upon specific operating conditions and snubber component size, zones of yes, no, and maybe exist. The validity of predicted results have been verified on a 30 kVA GTO (gate turn-off thyristor) experimental inverter

Keywords

invertors; network synthesis; overcurrent protection; thyristor applications; 30 kVA; GTO; active snubber networks; design; energy recovering; inverter; network synthesis; overcurrent protection; Hemorrhaging; Inductors; Pulse width modulation converters; Pulse width modulation inverters; Reservoirs; Resistors; Snubbers; Switched capacitor networks; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control, Instrumentation, and Automation, 1992. Power Electronics and Motion Control., Proceedings of the 1992 International Conference on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-0582-5

Type

conf

DOI

10.1109/IECON.1992.254585

Filename

254585