Lyapunov-based finite control set applied for current control of grid-connected single-phase inverter under distorted voltage conditions | Zendy

Lucas Demetrius Augusto | Zendy; Yuri De Oliveira Cota | Zendy; Jose Alberto Torrico Altuna | Zendy; Alfeu Joaozinho Sguarezi Filho | Zendy

Open Access

Lyapunov-based finite control set applied for current control of grid-connected single-phase inverter under distorted voltage conditions

Author(s) -

Lucas Demetrius Augusto,

Yuri De Oliveira Cota,

Jose Alberto Torrico Altuna,

Alfeu Joaozinho Sguarezi Filho

Publication year - 2025

Publication title -

ieee access

Language(s) - English

Resource type - Magazines

SCImago Journal Rank - 0.587

H-Index - 127

eISSN - 2169-3536

DOI - 10.1109/access.2025.3598607

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

The growing use of renewable energy sources, primarily driven by climate change, necessitates synchronization with the electricity grid for the effective and reliable operation of single-phase inverters connected to the grid. However, when the system is subject to distortions and variations in the grid voltage, inverter control can be compromised. To mitigate these problems, this article presents a predictive controller based on the Finite Control Set Model Predictive Control, which utilizes a Lyapunov stability criterion in discrete time. The proposed controller operates on a single-phase inverter connected to the grid, aiming to enhance total harmonic distortion performance. The control system, which uses a phase-locked loop for synchronization, incorporates Lyapunov stability concepts to ensure that the controlled variables remain close to their reference values, even in the face of grid disturbances. Experimental tests show that the proposal is viable in practice, keeping total harmonic distortion below 5%, within the limits set by power quality standards. The controller’s performance was evaluated under ideal and distorted grid conditions, and compared with a repetitive controller and a sliding mode controller combined with PI. Additionally, an analysis of parametric variations in the system was conducted. The results obtained show that the proposed strategy has superior performance in terms of harmonic suppression, validating its effectiveness and practical applicability.

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