Methodology for detection and location of high impedance faults in power distribution systems with distributed generation

• Grant number: 20/06935-5
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: May 01, 2021
• End date: March 31, 2024
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: José Carlos de Melo Vieira Júnior
• Grantee: Gabriela Nunes Lopes
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

The protection of Distribution Systems (DSs) against High Impedance Faults (HIFs) is an arduous task that attracts the interest of companies and researchers worldwide. The random behavior, the possibility of ambiguity concerning other DS events, and the small magnitude of the HIF current waveforms prevent the quick and effective protection of traditional methods. With the increasing insertion of Distributed Generation (DG) in DSs, a greater level of difficulty is added to the accomplishment of this type of protection. It should also be noted that the possible damage to the equipment of the medium voltage network, as well as risks to people and animals, are associated with the occurrence of HIFs and induce the search for new techniques and protection devices. However, there is no fully efficient solution for protection against this type of fault. Therefore, this project proposes the development of a protection algorithm against HIFs, which contains the detection and location of the fault. This study will also include the analysis of the system behavior with different levels of DG penetration. Additionally, the robustness of all steps of the algorithm about other common events and to topological and loading changes in DSs will be analyzed. Finally, as a result, it is intended to obtain a complete algorithm for protection against HIFs. (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

TRONDOLI, L. H. P. C.; LOPES, G. N.; VIEIRA, J. C. M.. Configurable stochastic model for high impedance faults simulations in electrical distribution systems. Electric Power Systems Research, v. 205, p. 12-pg., 2022-04-01. (20/06935-5)

NOZELA, MARCO A. S.; LOPES, GABRIELA N.; TRONDOLI, LUIZ H. P. C.; VIEIRA, JOSE CARLOS M.; IEEE. Analysis of Source and Load-side High Impedance Faults Using Stockwell Transform. 2021 WORKSHOP ON COMMUNICATION NETWORKS AND POWER SYSTEMS (WCNPS), v. N/A, p. 6-pg., 2021-01-01. (19/27329-9, 20/06935-5)

LOPES, GABRIELA N.; MENEZES, THIAGO S.; VIEIRA, JOSE CARLOS M.; IEEE. Harmonic Selection-based Analysis for High Impedance Fault Location Using Stockwell Transform and Random Forest. 2022 20TH INTERNATIONAL CONFERENCE ON HARMONICS & QUALITY OF POWER (ICHQP 2022), v. N/A, p. 6-pg., 2022-01-01. (20/06935-5)

LOPES, GABRIELA N.; MENEZES, THIAGO S.; VIEIRA, JOSE CARLOS M.; IEEE. Evaluation of Metrics to Detect High Impedance Faults Using Real Current Signals. 2022 20TH INTERNATIONAL CONFERENCE ON HARMONICS & QUALITY OF POWER (ICHQP 2022), v. N/A, p. 6-pg., 2022-01-01. (20/06935-5)