Title Capacitor voltage balancing modulation approach for 5-Level DCC in inverter application
Authors Nieto Cardona, Juan Diego, Montero-Robina, Pablo, GÓMEZ-ESTERN AGUILAR, FABIO, GÓMEZ-ESTERN AGUILAR, FABIO
External publication No
Means Ieee Industrial Electronics Society
Scope Article
Nature Científica
Area International
Publication date 01/01/2019
ISI 000522050605115
Abstract This article presents a modulation strategy for 5-level diode clamped for inverter applications. This modulation aims to implement a strategy to use the nearest-level modulation (NLM) in 5-level diode-clamped converter (DCC) while dealing with the capacitor voltage issue. In this way, a commutation-saving modulation approach is proposed. To achieve such purpose, the model of the converter is deeply analyzed and an strategy to select the common component is proposed. Such strategy is calculated offline and the solution is stored as a multidimensional array to be used during online operation. The effectiveness and good performance of the strategy is therefore validated by simulation results.
Keywords Neutral-point clamped (NPC); pulse-width modulation (PWM); power electronics; inverter
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