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Banca de QUALIFICAÇÃO: FERNANDO LINO

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : FERNANDO LINO
DATA : 16/06/2021
HORA: 14:00
LOCAL: ttps://meet.google.com/xeq-ihue-hdu
TÍTULO:
A CONTRIBUTION TO THE STUDY OF PLLS APPLIED TO ELECTRICAL ENERGY SYSTEMS

PÁGINAS: 55
GRANDE ÁREA: Outra
ÁREA: Multidisciplinar
RESUMO:
This work presents a new method to calculate the angular position of the network voltage based on
 a discrete set of angles in the condition of failures in the distribution systems, such as symmetrical
 and asymmetric voltage sags, unbalance, harmonic distortions and frequency changes. This method 
is inspired by the principles of the discrete set of angles using the predictive control model. In this way,
 the proposal uses the One-Cycle Fourier Fourier filter (OCF) to estimate the positive
 sequence of the voltage vector in stationary frame. The positive sequence extracted from this
 filter are then treated by an algorithm that is implemented by a set of discrete positions (FPS - Finite Position Set) 
to estimate the phase angle to increase the performance of a PLL (Phase-Locked Loop) algorithm, based 
on the structure of a second order generalized integrator (SOGI - Second Order Generalized Integra-tor), 
using the OCF filter to filter the αβ stationary voltages generated directly by the SOGI structure. In addition,
 a comparison is made between conventional SOGI and also with a moving average filter
 (MAF - Moving Average Filter), and this filter is applied to the synchronous voltages produced by the
 αβ-dq transformation in the output of the SOGI structure 
 by different harmonic distortions and with sinking voltages similar to those obtained in
 energy networks under fault conditions validate the contributions.

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 1907748 - ALFEU JOAOZINHO SGUAREZI FILHO
Membro Titular - Examinador(a) Interno ao Programa - 1545701 - IVAN ROBERTO SANTANA CASELLA
Membro Titular - Examinador(a) Externo à Instituição - CLAUDIONOR FRANCISCO DO NASCIMENTO - UFSCAR
Membro Suplente - Examinador(a) Interno ao Programa - 1671333 - EDMARCIO ANTONIO BELATI
Notícia cadastrada em: 14/05/2021 10:44
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