Development of transmission line protection algorithms and laboratory tests

• Grant number: 25/12545-9
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: October 01, 2025
• End date: September 30, 2026
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Giovanni Manassero Junior
• Grantee: Igor Krasnikovas Perucelo
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 24/03306-8 - Electrical Systems Protection based on Time Series Analysis Techniques in the Context of Energy Transition, AP.R

Abstract

This project develops, implements, and validates two advanced protection functions for transmission lines, both of which were previously proposed and analyzed under FAPESP project 03306-8/2024. The chosen algorithms will be coded on the intelligent electronic device (IED) available at LPROT using the in-house LPROTFRAME framework and then evaluated in a hardware-in-the-loop setup that combines an Omicron CMC-256 test set with a dataset generated from ATP/EMTP simulations of the Brazilian Interconnected Power System. To further enhance the performance analysis, the use of real-time digital simulation will also be explored. The work plan comprises six stages: (i) literature review; (ii) familiarisation with the intelligent electronic device and framework; (iii) implementation of the protection logic; (iv) testing and validation; (v) analysis of the results and (vi) preparation of technical reports and journal articles. Expected outcomes include reduced security failures, faster clearing faults, and overall advances in transmission-line protection tailored to energy-transition scenarios with high shares of renewable generation.