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Submitted by Ricardo Fonseca Buzo (ricardo.f.buzo@unesp.br) on 2020-03-31T14:17:13Z No. of bitstreams: 1 TESE_RICARDO_VERSÃO FINAL.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Submitted by Ricardo Fonseca Buzo (ricardo.f.buzo@unesp.br) on 2020-03-31T14:17:13Z No. of bitstreams: 1 TESE_RICARDO_VERSÃO FINAL.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Submitted by Ricardo Fonseca Buzo (ricardo.f.buzo@unesp.br) on 2020-03-31T14:17:13Z No. of bitstreams: 1 TESE_RICARDO_VERSÃO FINAL.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Submitted by Ricardo Fonseca Buzo (ricardo.f.buzo@unesp.br) on 2020-03-31T14:17:13Z No. of bitstreams: 1 TESE_RICARDO_VERSÃO FINAL.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Submitted by Ricardo Fonseca Buzo (ricardo.f.buzo@unesp.br) on 2020-03-31T14:17:13Z No. of bitstreams: 1 TESE_RICARDO_VERSÃO FINAL.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Submitted by Ricardo Fonseca Buzo (ricardo.f.buzo@unesp.br) on 2020-03-31T14:17:13Z No. of bitstreams: 1 TESE_RICARDO_VERSÃO FINAL.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Submitted by Ricardo Fonseca Buzo (ricardo.f.buzo@unesp.br) on 2020-03-31T14:17:13Z No. of bitstreams: 1 TESE_RICARDO_VERSÃO FINAL.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Approved for entry into archive by Raiane da Silva Santos (raiane.santos@unesp.br) on 2020-03-31T14:58:45Z (GMT) No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Made available in DSpace on 2020-03-31T14:58:45Z (GMT). No. of bitstreams: 1 buzo_rf_dr_ilha.pdf: 1933161 bytes, checksum: 95d02449dd037586bf9baa63c5f90d0b (MD5) Previous issue date: 2020-02-24 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Neste trabalho, um novo algoritmo de localização de faltas é proposto com base em medições de tensão esparsas sincronizadas e não sincronizadas. Para tornar o método proposto mais acessível, tecnicamente, neste trabalho apresenta-se um novo procedimento de manipulação da matriz de impedância que cria diferentes subsistemas. Tal procedimento permite que o processo de localização de faltas seja realizado por meio da resolução de sistemas determinados de equações, o que reduz a complexidade durante a localização das faltas. Para reduzir os efeitos da geração distribuída (GD), um novo conceito é apresentado para o cálculo da corrente de falta, onde dispositivos de medição não são requeridos em barras com GD. O local da falta é identificado via análise da variação de tensão na barra terminal de cada subsistema. O desempenho do método proposto é avaliado em três sistemas de distribuição diferentes com/sem GD. O software DIgSILENT® é utilizado para modelar as redes de distribuição. Os resultados da simulação mostram a robustez do método em vários cenários pré-falta e pós-falta e erros de medição. In this work, a new fault location algorithm is proposed based on sparse synchronized and non-synchronized voltage measurements. To make the proposed method more technically accessible, this work presents a new impedance matrix manipulation procedure that creates different subsystems. Such a procedure allows the fault location process to be carried out by solving determined systems of equations, which reduces the complexity during the fault location. To reduce the effects of distributed generation (DG), a new concept is presented for the fault current calculation, where measuring devices are not required at buses with DG. The fault is located by analyzing the voltage sag at the terminal-bus of each subsystem. The performance of the proposed method is evaluated in three different distribution systems with/without DG. DIgSILENT® software is used to model distribution networks. The simulation results show the robustness of the proposed method under several pre- and during-fault scenarios and measurement errors. CNPq: 141673/2016-8

Submitted by RICARDO FONSECA BUZO null (ricardo.buzo@yahoo.com.br) on 2016-06-23T18:54:42Z No. of bitstreams: 1 Dissertação_final_100%pronta.pdf: 4244820 bytes, checksum: 83a976e2284de9c0a3bcbcd8556da567 (MD5) Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2016-06-27T18:32:12Z (GMT) No. of bitstreams: 1 buzo_rf_me_ilha.pdf: 4244820 bytes, checksum: 83a976e2284de9c0a3bcbcd8556da567 (MD5) Made available in DSpace on 2016-06-27T18:32:12Z (GMT). No. of bitstreams: 1 buzo_rf_me_ilha.pdf: 4244820 bytes, checksum: 83a976e2284de9c0a3bcbcd8556da567 (MD5) Previous issue date: 2016-05-10 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Com o aumento das cargas elétricas não lineares nas redes de distribuição, intensifica-se o nível de correntes harmônicas responsáveis por distorções nos sinais elétricos, o que compromete a qualidade da energia elétrica. O emprego de dispositivos eletromagnéticos constitui atualmente uma alternativa promissora para mitigação de correntes harmônicas de sequência zero. São dispositivos robustos que, quando utilizados isoladamente ou em conjunto com outros arranjos, podem ser técnica e economicamente atraentes. O filtro eletromagnético é um dispositivo inserido paralelamente ao sistema com baixa impedância de sequência zero e elevada impedância de sequência positiva e negativa. Logo, para um filtro ideal, tem-se o confinamento das correntes harmônicas “triplens” sem que o fluxo de potência do sistema seja comprometido. Buscando-se aperfeiçoar o divisor de corrente de sequência zero entre o sistema e o filtro, o bloqueador eletromagnético é inserido em série ao sistema, devido a sua elevada impedância de sequência zero e baixa impedância para as sequências positiva e negativa. Este trabalho, por meio da teoria das transmitâncias, desenvolve uma metodologia de auxílio no dimensionamento e projeto do filtro e bloqueador eletromagnéticos, em função do percentual de filtragem desejado para a corrente de sequência zero. Para isto, são apresentados os equacionamentos das resistências e reatâncias sequenciais do filtro e bloqueador. Inicialmente, o dimensionamento e projeto do filtro são elaborados sem a presença do bloqueador, inserido apenas quando os resultados alcançados não forem satisfatórios. Em síntese, o desempenho do sistema de filtragem dimensionado e projetado é analisado através do próprio método proposto e do PSIM® , programa bastante difundido e consagrado para o desenvolvimento de simulações que envolvem sistemas de potência. Deste modo, é apresentado, consequentemente, um diagnóstico de aderência para o modelo proposto. With the increase of non-linear electrical loads in the distribution networks, intensifies the level of harmonic currents responsible for the distortions in electrical signals, compromising the quality of electricity. The use of electromagnetic devices is currently a promising alternative to mitigation of harmonic currents of zero sequence. They are robust devices that when used alone or in conjunction with other arrangements can be technically and economically attractive. The electromagnetic filter is a device inserted in parallel to the system with low zero sequence impedance and high positive and negative sequence impedance. Thus, for an ideal filter, there is the confinement of “Triplens” harmonic currents without the power flow is compromised. Seeking to improve the zero sequence current divider between the system and the filter, the electromagnetic blocker is inserted in series to the system because of their high zero sequence impedance and low impedance for the positive sequence and negative sequence. This work, using the method of transmittances, develops an aid methodology to measure and design the electromagnetics filter and blocker, depending on the percentage of desired filtering for zero sequence current. For this, the sequential resistance equation and sequential reactance equation are presented to the filter and blocker. Initially, the measure and design filter are made without the presence of the blocker, inserted only when the results achieved are not satisfactory. In short, the filtering system performance measured and designed is analyzed using the proposed method and the PSIM®, widespread and dedicated program for the development of simulations involving electrical circuits. Thus, it is shown, therefore, a diagnosis of tack for the proposed model.