T30.4 - A Zero Harmonic Distortion Grid-Connected Grid-Forming Converter for Battery Energy Storage System Applications

Thursday, March 20, 2025

9:00 AM – 9:20 AM ET

Location: Level Three, A316

Technical Lecture Presenter(s)

Gabriel Vilkn Vilkn Ramos

Universidade Federal de Minas Gerais

Presentation Paper

Co-Author(s)

FZ

Fangzhou Zhao

Department of Energy Aalborg University
TP

Thiago Parreiras

Centro Federal de Educação Tecnológica de Minas Gerais
XW

Xiongfei Wang

KTH Royal Institute of Technology
Braz de Jesus Cardoso Filho, PhD

Universidade Federal de Minas Gerais

The present work proposes the application of the Zero Harmonic Distortion Converter (ZHD) as a grid-connected grid-forming (GFM) converter due to its inherently sinusoidal voltage source characteristic without the need for capacitive filtering, low parts count, off-the-shelf power circuitry with a simple open-loop control structure that does not contribute to possible control interaction and resonances in grid-connected mode. These features are achieved by the harmonic cancellation in a three-winding transformer along with harmonic elimination using the Selective Harmonic Elimination Pulse Width Modulation (SHE PWM). The ZHD GFM converter it’s a compelling alternative for GFM battery energy storage systems (BESS) in medium-voltage applications.