Constrained predictive control based on a large-signal model for a three-phase inverter connected to a microgrid
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
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.
© 2022 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 works.
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.
- Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial - Articles de revista [1.323]
- Doctorat en Enginyeria Electrònica - Articles de revista 
- Departament d'Enginyeria Electrònica - Articles de revista [1.658]
- SEPIC - Sistemes Electrònics de Potència i de Control - Articles de revista