Banca de DEFESA: JOSÉ RAIMUNDO LIMA JÚNIOR

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : JOSÉ RAIMUNDO LIMA JÚNIOR
DATE: 04/09/2023
TIME: 14:00
LOCAL: online
TITLE:

Two-Terminal Traveling-Wave-Based Non-Homogeneous Transmission-Line Protection

KEY WORDS:

Transmission line protection,non-homogeneous transmission lines, hybrid lines, Traveling waves

PAGES: 90
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Sistemas Elétricos de Potência
SPECIALTY: Transmissão da Energia Elétrica, Distribuição da Energia Elétrica
SUMMARY:

This work presents a two-terminal traveling-wave-based protection algorithm applied to non-homogeneous transmission lines comprising any number of sections with different topologies and considering the effect of the sampling rate. Existing two-terminal traveling wave protection functions cannot protect the line under close-in faults and present limitations in non-homogeneous transmission lines. However, the effects of the sampling rate, considered in the proposed method, result in well-defined protection and unprotected zones, essential for protection security and development of solutions to deal with the issue of close-in faults in non-homogeneous transmission lines. Furthermore, the algorithm can accurately detect the faulted section, allowing its use in advanced protection functions such as adaptive automatic auto-reclosing and high-speed protection schemes. A protection device was modeled considering a sampling frequency equal to 1 MHz, including functions to detect traveling waves via wavelet transform, and the proposed protection algorithm to discriminate line internal from external faults, and to select the faulted section. The algorithm was evaluated using a large number of Alternative Transients Program (ATP) fault simulations. The results show that the algorithm is robust and reliable for protection devices installed in non-homogeneous lines.

COMMITTEE MEMBERS:
Presidente - 1807863 - FLAVIO BEZERRA COSTA
Interno - 1543191 - LUIZ FELIPE DE QUEIROZ SILVEIRA
Externo à Instituição - FELIPE VIGOLVINO LOPES - UFPB
Externo à Instituição - KLEBER MELO E SILVA - UnB
Externo à Instituição - WASHINGTON ARAUJO NEVES - UFCG