A new snubber circuit for diode-clamped four-level inverter and converter

Author

Kim, In-Dong ; Nho, Eui-Cheol

Author_Institution

Dept of Electr. Eng, Pukyong Nat. Univ., Pusan, South Korea

Volume

3

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1375

Abstract

This paper proposes a new snubber circuit for a 4-level inverter and converter. The snubber circuit makes use of an Undeland snubber and McMurray efficient snubber as its basic snubber unit, and can be regarded as a generalized combined Undeland and McMurray efficient snubber. The proposed snubber keeps such good features as fewer number of components, improved efficiency due to low snubber loss, capability of clamping overvoltage across main switching devices, and no unbalance problem of blocking voltage

Keywords

DC-AC power convertors; invertors; overvoltage; power semiconductor diodes; power semiconductor switches; snubbers; switching circuits; blocking voltage unbalance; component number reduction; diode-clamped four-level inverter/converter; efficiency improvement; generalized combined Undeland/McMurray efficient snubber; overvoltage; snubber loss; switching devices overvoltage clamping; Capacitors; Clamps; Diodes; Inductors; Inverters; Resistors; Snubbers; Switches; Switching circuits; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual

Conference_Location

Vancouver, BC

ISSN

0275-9306

Print_ISBN

0-7803-7067-8

Type

conf

DOI

10.1109/PESC.2001.954312

Filename

954312