Rosado Galparsoro, LeyreNorambuena, MargaritaSamanes Pascual, JavierLezana, PabloGubía Villabona, EugenioLópez Taberna, Jesús2024-10-092024-10-092023-11-01Rosado, L., Norambuena, M., Samanes, J., Lezana, P., Gubia, E., Lopez, J. (2023) Dual-stage control strategy for a three-level neutral point clamped converter with selective harmonic mitigation PWM. In [IEEE], 2023 International Aegean Conference on Electrical Machines and Power Electronics (ACEMP) & 2023 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM), Istanbul, Turkiye, 2023 (pp. 1-7). IEEE. https://doi.org/10.1109/ACEMP-OPTIM57845.2023.10287062ISBN-680110.1109/ACEMP-OPTIM57845.2023.10287062https://academica-e.unavarra.es/handle/2454/52113Grid-connected converters must meet the requirements imposed by grid codes, such as harmonic emission limits and grid voltage support during voltage dips. Selective harmonic mitigation pulsewidth modulation (SHMPWM) is a very interesting technique for high power converters to meet the maximum harmonic emission levels, while keeping a low switching frequency. However, the combination of this modulation with a proportional integral (PI) controller requires slow dynamics, which makes it difficult to comply with the dynamic response requirements of grid codes. As an alternative, model predictive control (MPC) offers a very fast dynamic response, but a wide spread harmonic spectrum in steady state. Thus, the combination of MPC with a PI controller with SHMPWM is advantageous. In this work, a dual-stage control strategy is implemented. During transients, finite control set MPC (FCS-MPC) is activated to rapidly drive the current to the desired reference, while in steady state, the PI controller with SHMPWM is used. Therefore, the dual-stage control strategy allows to comply with the two requirements of grid codes, becoming a suitable strategy for grid-connected converters.application/pdfeng© 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.Gridconnected power converterLinear controlModel predictive controlSelective harmonic mitigation pulsewidth modulationinfo:eu-repo/semantics/conferenceObject2024-10-09info:eu-repo/semantics/openAccess