Constrained predictive control based on a large-signal model for a three-phase inverter connected to a microgrid

Cita com:
hdl:2117/366886
Document typeArticle
Defense date2022-07-21
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
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Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
Small-signal models are the mostly used to model and design in inverter-dominated microgrids. Conversely, this paper proposes a large-signal model for grid-forming inverters connected to a microgrid based on the active and reactive power dynamic equations. In this work, it is proposed to use this nonlinear model to develop a constrained predictive control for the inverters connected to a microgrid. The main features of this proposed control are: first, direct voltage control (in amplitude and frequency) is not necessary; second, stability is guaranteed under a wide range of line impedances (hence, the virtual impedance is not needed); and third, the proposed control can operate with unbalanced and nonlinear loads. Moreover, a theoretical stability analysis is presented. Selected experimental results show that the proposed control operates satisfactorily in case of a load step change, a load imbalance, and nonlinear loads.
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CitationAlfaro, C. [et al.]. Constrained predictive control based on a large-signal model for a three-phase inverter connected to a microgrid. "IEEE transactions on industrial electronics", 21 Juliol 2022, vol. 69, núm. 7.
ISSN0278-0046
Publisher versionhttps://ieeexplore.ieee.org/document/9492749
Collections
- Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial - Articles de revista [1.323]
- Doctorat en Enginyeria Electrònica - Articles de revista [127]
- Departament d'Enginyeria Electrònica - Articles de revista [1.658]
- SEPIC - Sistemes Electrònics de Potència i de Control - Articles de revista [116]
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