March 2026

Conference Paper

A Grid-Forming Split-Phase Three-Leg Inverter with Unbalanced Loading and Active Power Decoupling

By:
Kim, Namwon ; Rezende Da Costa Reis Kimpara, Renata ; Starke, Michael R
Page Number:
703-710
Book Title:
2025 IEEE Applied Power Electronics Conference and Exposition (APEC)
Publication Date:
March 12, 2026
Publisher Location:
IEEE, New Jersey, United States of America
Conference Name:
IEEE Applied Power Electronics Conference and Exposition 2025 (APEC)
Conference Location:
Atlanta, Georgia, United States of America
Conference Sponsor:
IEEE, IEEE IAS, IEEE PELS, PSMA
View DOI Listing:
https://doi.org/10.1109/APEC48143.2025.10977089

Abstract

This paper presents a split-phase three-leg inverter that regulates 180-degree phase-shifted AC voltages to support residential house loads under unbalanced loading conditions and decouples double line frequency power pulsation by utilizing the third half-bridge switching leg. The active power decoupling function is added without extra active switching components. The control feasibility and effectiveness are verified through MATLAB Simulink simulation and controller hardware-in-the-loop test.