This paper compares hard-driven gate-turn-off thyristors (IGCT's) and high-
power insulated gate bipolar transistor (IGBT) modules in a two-level pulse
width modulation inverter, The structure, fundamental operation, and specif
ic characteristics of the considered devices are shown. Simulations enable
a loss comparison of IGCT's and IGBT's in a 1.14-MVA inverter at switching
frequencies of f(s) = 250 Hz/500 Hz. The evaluation of device characteristi
cs is the basis for a derivation of potential applications.