Study of the Vienna Converter: Assessment of Harmonic Impacts and Interactions

• Grant number: 25/07518-2
• Support Opportunities: Scholarships abroad - Research Internship - Master's degree
• Start date: September 01, 2025
• End date: February 28, 2026
• Field of knowledge: Engineering - Electrical Engineering - Industrial Electronics, Electronic Systems and Controls
• Principal Investigator: Augusto Matheus dos Santos Alonso
• Grantee: Samila Pereira de Oliveira
• Supervisor: Elisabetta Tedeschi
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Institution abroad: Universitá degli Studi di Trento, Italy
• Associated to the scholarship: 24/07994-6 - Study of Supraharmonic Distortion Caused by Electric Vehicle Chargers in Microgrids, BP.MS

Abstract

The increasing insertion of electric vehicle chargers (EVCs) in low-voltage distribution networks has led to problems related to power quality, mostly related to the switched operation of the embedded power electronics. In particular, even if different filtering stages are employed in the power electronics circuits of such EVCs, these filters can interact with the line impedances, as well as with devices connected in parallel to the charger, resulting in harmonic interactions that can intensify and/or create resonance conditions. In view of this, this proposal aims to develop and analyze the model of a three-phase Vienna rectifier converter, implementing it computationally, in order to evaluate the impact of its connection to a low-voltage grid. Furthermore, we intend to study the harmonic interactions between its filters and grid impedances, as well as the effects of a possible parallel operation of EVCs. (AU)