Figures-of-Merit and current metric for the comparison
of IGCTs and IGBTs in Modular Multilevel Converters


IGCTs and IGBTs are compared in the case of a HVDC MMC. Specific figures of merit, and a current metric providing simple means to compare them, are introduced and discussed. Simulation results of a MMC model and figures of merit are shown to provide consistent result, proving that the proposed figures of merit are a very simple and fast way to select the best semiconductor switch. Furthermore, our analysis supports the growing interest in IGCTs for MMCs, as they are found to produce the lowest level of losses.

Arthur Boutry, Cyril Buttay, Bruno Lefebvre, Florent Morel, Colin Davidson

Presented at EPE’20 ECCE Europe