This work presents methods for reducing overshoot voltages across the drain-source of silicon carbide (SiC) MOSFETs in grid-
connected hybrid active neutral-point-clamped (ANPC) inverters. Compared with 3-level NPC-type inverter, the hybrid ANPC inverter
can realize the high efficiency. However, SiC MOSFETs conduct its switching operation at high frequencies, which cause high
overshoot voltages in such devices. These overshoot voltages should be reduced because they may damage switching devices and
result in electromagnetic interference (EMI). Two major strategies are used to reduce the overshoot voltages, namely, adjusting the
gate resistor and using a snubber capacitor. In this paper, advantages and disadvantages of these methods will be discussed. The
effectiveness of these strategies is verified by experimental results.
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