Nieto Cardona, Juan Diego , Montero-Robina, Pablo , GÓMEZ-ESTERN AGUILAR, FABIO
No
Ieee Industrial Electronics Society
Article
Científica
01/01/2019
000522050605115
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.
Neutral-point clamped (NPC); pulse-width modulation (PWM); power electronics; inverter