Transmission Line Protection Performance in the Presence of Wind Power Plants: Study on the Busbar Capacitance Modeling During Relay Testing Procedures

Felipe  V. Lopes; Jônatas  S. Costa; Tiago  R. Honorato; Rodrigo  T. Toledo; Letícia A. Gama; Paulo  S. Pereira Jr; Gustavo  S. Salge; Moisés  J. B. B. Davi

doi:10.48011/sbse.v1i1.2184

Felipe V. Lopes University of Brasilia
Jônatas S. Costa University of Brasilia
Tiago R. Honorato University of Brasilia
Rodrigo T. Toledo University of Brasilia
Letícia A. Gama University of Brasilia
Paulo S. Pereira Jr Conprove Engineering, Industry and Commerce
Gustavo S. Salge Conprove Engineering, Industry and Commerce
Moisés J. B. B. Davi Conprove Engineering, Industry and Commerce

DOI: https://doi.org/10.48011/sbse.v1i1.2184

Keywords: Busbar capacitance, Phasor-based relays, Protection systems, Power systems, Time-domain relays, Transmission lines, Wind power plants

Abstract

In this paper, the performance of transmission line differential and distance protection functions available in phasor- and time-domain-based relays is evaluated considering the presence of wind power plants. In the proposed study, an investigation on the system busbar capacitance modeling during relay testing procedures is carried out, indicating differences verified in the number of operations and operation times of four real protective relays. The obtained results reveal that the busbar capacitance modeling is critical for some protection functions, affecting mainly the reliability of transient-based algorithms.