Banca de DEFESA: HUGO MATHEUS TEIXEIRA COTRIM GOMES

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : HUGO MATHEUS TEIXEIRA COTRIM GOMES
DATE: 19/08/2022
TIME: 14:00
LOCAL: meet.google.com/dod-xwdt-equ
TITLE:

A GRID IMPEDANCE ESTIMATION METHOD TO SUPPORT STABILITY AND POWER QUALITY IN GRID-CONNECTED INVERTERS

KEY WORDS:

Grid impedance estimation, Newton-Raphson method, Inverters, Active damping, stability analysis, adaptive control

PAGES: 98
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Eletrônica Industrial, Sistemas e Controles Eletrônicos
SPECIALTY: Controle de Processos Eletrônicos, Retroalimentação
SUMMARY:

This work proposes a method to estimate a grid impedance suitable for grid-connected inverters in an electric power distribution system. The procedure is based on variations in active and reactive powers injected into the power system by the grid-connected inverter. The variation provokes changes in the voltage and current values at the Point of Common Coupling (PCC). The changes are used to estimate the grid resistance and inductance through a Newton-Raphson numerical analysis. Moreover, the estimated impedance is used to adapt an active damping technique of the inverter's control system. The proposed method is verified by simulations in the PSIM environment and experimentally in real-time through a Hardware-in-the-Loop (HIL) testing platform

BANKING MEMBERS:
Presidente - 1666309 - FABIANO FRAGOSO COSTA
Interno - 1484412 - FERNANDO AUGUSTO MOREIRA
Interno - 1889072 - TITO LUIS MAIA SANTOS
Externo à Instituição - ALFEU JOÃOZINHO SGUAREZI FILHO - UFABC
Externo à Instituição - FERNANDO PINHABEL MARAFÃO - UNESP
Externo à Instituição - DARLAN ALEXANDRIA FERNANDES - UFPB