Performance evaluation of distance protection of transmission lines connected with VSC-HVDC system using closed-loop test in RTDS

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017

Autores

Alam, MM (Autor) Outra; Helder Leite (Autor) FEUP; Silva, N (Autor) Outra; Carvalho, AD (Autor) Outra

Revista

Título: Electric Power Systems Research

Vol. 152

Páginas: 168-183

ISSN: 0378-7796

Editora: Elsevier

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 18 Citações

Outras Informações

ID Authenticus: P-00N-250

DOI: 10.1016/j.epsr.2017.06.025

Abstract (EN): Voltage Source Converter (VSC) based High Voltage Direct Current (HVDC) can control voltage and power flow on ac transmission lines with the priority of reactive current support during the fault as suggested in the grid codes for HVDC connections. Furthermore, the fault current contribution from the converter is limited in magnitude and modified in the waveform in order to protect the power electronic devices during the fault, which on the other hand affects the apparent impedance seen by the distance relay. This paper addresses the challenges faced by the distance protection of transmission lines connected with VSC-HVDC system by performing a closed-loop test of a commercial distance relay using Real Time Digital Simulator (RTDS). The power system with VSC is modeled in detail under a more-realistic scenario in RTDS so that the performance of the distance protection can be tested under near to actual field conditions. The responses of the commercial distance relay for balanced and unbalanced faults are analyzed. The oscillograph data of the voltage, current and protection bits recorded by the relay are extracted and compared with the simulation results.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 16