2025-05-302025-05-302024-12Aguirre Martínez, M.A., Wilson-Veas, A.H., Kouro, S., Rojas, C.A., León, J.I. y Vázquez Pérez, S. (2024). Extended Period Control Approach FCS-MPC for Three Phase NPC Power Converters. IEEE Transactions on Power Electronics, 40 (4), 4927-4937. https://doi.org/10.1109/TPEL.2024.3511263.0885-89931941-0107https://hdl.handle.net/11441/173747Finite control set model predictive control (FCS-MPC) selects a voltage vector state at fixed sampling period without the use of a modulator. As a direct consequence, the conventional implementation of FCS-MPC presents variable switching frequency. Period control approach (PCA-FCS-MPC) for a two-level three-phase inverter is effective in controlling the switching frequency without the need of a modulation stage. However, its implementation for a three-level three-phase inverter is not straightforward due to the need for synchronizing the commutation of all the power semiconductors in each leg. This work presents a new method to implement this strategy in a three phase three-level neutral point clamped voltage source inverter (NPC-VSI), named direct grouping, which modifies the approach of PCA such that its implementation becomes possible on the NPC-VSI. This new method, along with a state-of-the art solution, are analyzed in detail to establish a metric for the evaluation of their performance, from which the new proposal shows improved outcome. Experimental results validate the switching frequency control performance, flexibility, and efficacy of the proposed strategy.application/pdf10 p.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/Finite control set (FCS)fixed switching frequencymodel predictive control (MPC)three-level neutral point clamped (NPC) voltage source converterinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.1109/TPEL.2024.3511263