Title :
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
fDate :
6/23/1905 12:00:00 AM
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;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954312
