Abstract
Grid-connected single-phase inverters require accurate phase detection for synchronization and power control. Traditionally, phase-locked loops (PLLs) are used to estimate grid parameters. This paper proposes a novel approach that determines the grid phase angle using only current feedback, eliminating the need for grid voltage measurements or cascaded control schemes. The proposed method integrates a phase angle observer with a current controller to regulate real and reactive power. Lyapunov stability analysis and hardware experiments validate the effectiveness of the approach.
Recommended Citation
S. Pandey and M. Mclntyre, "Nonlinear Self-Synchronizing Current Control for Single-Phase AC Inverters," Energies, vol. 18, no. 4, article no. 941, MDPI, Feb 2025.
The definitive version is available at https://doi.org/10.3390/en18040941
Department(s)
Electrical and Computer Engineering
Publication Status
Open Access
Keywords and Phrases
AC angle observer; self-synchronization current control; single-phase grid following inverter control
International Standard Serial Number (ISSN)
1996-1073
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2025 The Authors, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
01 Feb 2025
