Title :
Universal voltage clamping circuit for T-type neutral-point-clamped (TNPC) converters
Author :
Weiyi Feng ; Lizhi Xu ; Weiqiang Zhang ; Hongyang Wu
Author_Institution :
Delta Power Electron. Center, Delta Electron. (Shanghai) Co., Ltd., Shanghai, China
Abstract :
In this paper, a universal voltage clamping circuit for the T-type neutral-point-clamped (TNPC) converter is introduced. It is shown that, for any TNPC implementation, the proposed voltage clamping circuit can well suppress all voltage spikes of power devices at the switching transients. Therefore, the devices can operate in a much safer region.
Keywords :
power convertors; transients; T-type neutral-point-clamped converters; power devices; switching transients; universal voltage clamping circuit; voltage spikes; Capacitors; Clamps; Inductance; Inverters; Semiconductor diodes; Switches; Transient analysis; TNPC converter; Voltage clamping;
Conference_Titel :
Electronics and Application Conference and Exposition (PEAC), 2014 International
Conference_Location :
Shanghai
DOI :
10.1109/PEAC.2014.7037850
