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The short-circuit behavior of power devices is highly relevant for converter design and fault protection. In this paper, the degradation during short circuit of a 10-kV 10-A 4H-SiC MOSFET is investigated at 6 kV dc-link voltage. The study aims to present the behavior of the device during short-circuit transients as it sustains increasing short-circuit pulses during its lifetime. As the short-circuit...
In this work, a novel high performance 10 kV / 240 A silicon carbide (SiC) metal-oxide field-effect transistor (MOSFET) power module design is presented. The key features for this power module include reworkability, low parasitic design, low thermal resistance design, equal current sharing of high voltage power MOSFETs, and low profile and small form factor. The design tradeoffs to achieve these characteristics...
A high-efficiency, 2.3-MW, medium-voltage, three-level inverter utilizing 4.5-kV Si/SiC (silicon carbide) hybrid modules for wind energy applications is discussed. The inverter addresses recent trends in siting the inverter within the base of multimegawatt turbine towers. A simplified split, three-layer laminated bus structure that maintains low parasitic inductances is introduced along with a low-voltage,...
This paper discusses recent trends in wind turbine electrical architecture resulting from utility interconnect and public siting requirements. These trends together with constant need to reduce the cost-of-energy place a premium on wind turbine inverter efficiency. This need is addressed by the use of a medium voltage, three-level inverter with 4HN structure silicon carbide barrier diode located in...
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