Banca de QUALIFICAÇÃO: TATYANA AZEVEDO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : TATYANA AZEVEDO
DATA : 30/04/2026
HORA: 08:00
LOCAL: meet.google.com/uhd-vehc-uhm
TÍTULO:

Study of Multilevel Converters Applied to a Combined Series and Parallel Active Filter

PALAVRAS-CHAVES:

Power quality; UPQC; active filters; multilevel converters; DDSRF-PLL.

PÁGINAS: 60
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Elétrica
SUBÁREA: Sistemas Elétricos de Potência
ESPECIALIDADE: Conversão e Retificação da Energia Elétrica
RESUMO:

The increased use of power electronics-based loads has intensified issues related to Power Quality (QEE), such as harmonic distortions, voltage imbalances, and amplitude variations. These phenomena negatively impact the performance and reliability of electrical systems, especially in industrial environments.

As an alternative to traditional solutions based on passive filters, this work investigates the use of the Unified Power Quality Conditioner (UPQC), a structure that integrates series and parallel active filters, allowing for the simultaneous compensation of voltage and current disturbances. The study encompasses system modeling in the dq0 synchronous reference frame, the development of voltage and current control loops, and the implementation of robust synchronization techniques based on the DDSRF-PLL, suitable for non-ideal grid conditions.

Additionally, the application of multilevel converters within the UPQC structure is proposed, aiming to improve the quality of synthesized waveforms and reduce harmonic distortion. Through computer simulations, a comparative analysis will be conducted between the conventional two-level topology and the multilevel approach, considering regulatory power quality indicators and the system's dynamic performance against different disturbances.

The expected results aim to demonstrate the feasibility and benefits of using multilevel converters in power conditioning systems, contributing to the advancement of more efficient and robust solutions in modern electrical grids.

MEMBROS DA BANCA:
Presidente - 1521733 - CLODUALDO VENICIO DE SOUSA
Interno - 1104811 - WANER WODSON APARECIDO GONCALVES SILVA
Externo ao Programa - 1929842 - GUILHERME MONTEIRO DE REZENDE - UNIFEIExterno ao Programa - 2046014 - TIAGO DE SA FERREIRA - UNIFEI