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

by Namwon Kim, Renata Rezende Da Costa Reis Kimpara, Michael R Starke
Publication Type
Conference Paper
Book Title
2025 IEEE Applied Power Electronics Conference and Exposition (APEC)
Publication Date
Page Numbers
703 to 710
Publisher Location
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
Conference Date
-

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.