DOI: 10.3390/en16155595 ISSN: 1996-1073
Application of Nonlinear Optimization for Fault Location in Transmission Lines with Series Compensation Protected by Varistors
Simone Aparecida Rocha, Rodrigo Tomas Nogueira Cardoso, Eduardo Gonzaga Da Silveira, Alex-Sander Amavel Luiz- Energy (miscellaneous)
- Energy Engineering and Power Technology
- Renewable Energy, Sustainability and the Environment
- Electrical and Electronic Engineering
- Control and Optimization
- Engineering (miscellaneous)
- Building and Construction
This paper introduces a novel approach to fault localization in transmission lines with series compensation using nonlinear optimization. The objective function minimization provides information on the fault distance and the current at which the protective varistor starts conducting. Terminal source data, the maximum current capacity of the capacitor, and the operating curve of the metal oxide varistor protection element are not required. The proposed method successfully met the predefined objectives, with a maximum error of 1.13% in simulated scenarios. In validating the method using real cases from a Brazilian energy concessionaire, the errors were below 0.5%.