Experimental Investigation of the Commutations of a 3L-ANPC Phase Leg Using 4.5-kV–5.5-kA IGCTs
作者： Daniel Andler , Rodrigo Alvarez , Steffen Bernet , Jose Rodriguez
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摘要: Three-level active neutral-point-clamped (NPC) (ANPC) (3L-ANPC) voltage-source converters (3L-ANPC VSCs) offer three additional switch states and an increase of commutations by a factor four, compared to the three-level NPC converter. This paper presents, for first time, detailed analysis all 3L-ANPC VSC using high-power 5SHY55L4500 integrated gate-commutated thyristors. Starting with description switching commutations, new 3-kV 5-kA medium-voltage testbench is described. To verify function this derives suitable sequences analyzes transients in detail dc-link voltages 2.13-2.43 kV load currents 3.95-4.36 kA. The experimental investigations show that, although ANPC substantially differ from do not present critical operating conditions power semiconductors or converters. Thus, 32 can be applied converter realization.
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