2026-04-07T10:21:34Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/55592024-03-04T09:41:59Zcom_20.500.11984_473col_20.500.11984_478

00925njm 22002777a 4500 dc Mazuela, Mikel author 2021 Selective harmonic elimination–pulsewidth modulation (SHE–PWM) is a modulation technique widely used to improve the efficiency and harmonic content in medium-voltage high-power converters. Among these converters, the three-level neutral-point-clamped (3L-NPC) converter is one of the most utilized topologies. However, the 3L-NPC converter requires a proper balancing of dc-link capacitor voltages. This article presents a control technique, based on pulse shifting method, to regulate the neutral point voltage when SHE-PWM is utilized. The proposed technique performs well with any power factor and it can also be directly applied to T-type converters and easily extrapolated to other multilevel topologies. The proposed method is experimentally validated in a scaled-down power converter and a full-scale medium-voltage 3L-NPC converter. 1557-9948 https://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=164915 https://hdl.handle.net/20.500.11984/5559 Voltage control Modulation Harmonic analysis Topology Switches Capacitors Reactive power DC-Link Neutral Point Control for 3L-NPC Converters Utilizing Selective Harmonic Elimination PWM