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AC losses in Bi-2223 Single-Pancake Coils From 72 to 1152 Hz—Modeling and Measurements Abstract: Studies of ac losses in superconducting materials, particularly in pancake coils, are of great ...
This article presents two single-phase to single-phase three-wire converters based on two-level and three-level neutral-point-clamped legs. The converters present a shared-leg between the grid and ...