Nonlinear Self-Synchronizing Current Control for Single-Phase AC Inverters

Shruti Pandey and Michael Mclntyre ()
Additional contact information
Shruti Pandey: Electrical and Computer Engineering, University of Louisville, Louisville, KY 40292, USA
Michael Mclntyre: Electrical and Computer Engineering, University of Louisville, Louisville, KY 40292, USA

Energies, 2025, vol. 18, issue 4, 1-11

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.

Keywords: AC angle observer; self-synchronization current control; single-phase grid following inverter control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/4/941/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/4/941/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2025:i:4:p:941-:d:1592305

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().