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The integration of series connection of insulated gate bipolar transistors (IGBTs) and multi-level can achieve high voltage converters with low total harmonics distortion (THD). However, due to the transient voltage unbalance, the series connection technology has not been widely applied. Asynchronous gate drive signals, which cause series-connected IGBTs not to turn-on and turn-off at the same time,...
The tail current of insulation gate bipolar transistor (IGBT), which is difficult to describe accurately, influences the series connection characteristics of IGBTs remarkably. In this paper, the series connection characteristics of 6500V/600A high voltage IGBTs (HV-IGBTs) are analyzed, and a behavior model for series connected HV-IGBTs is proposed. The model is implemented in PSIM with switches, capacitances...
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