Desenvolvimento de um projeto de Hardware-In-the-Loop (HIL) integrado ao software PSP-UFU para análise de proteção de sistemas elétricos de potência utilizando relés

Abstract

This Final Year Project presents the development of a Hardware-In-the-Loop (HIL) system integrated with the PSP-UFU software for simulation and analysis of power system protection. Originating from a Scientific Initiation project, the objective was to connect real protection relays to a virtual simulation environment, enabling practical and safe testing scenarios. PSP-UFU was used as the simulator, the Arduino UNO board served as the communication interface, and the Python programming language was employed to manage data transfer between software and hardware. By exporting data from PSP-UFU in CSV format, a system for serial data transmission and reception was implemented using Arduino, allowing the evaluation and visualization of relay operation. Additionally, an electronic converter with Sinusoidal Pulse Width Modulation (SPWM) modulation was designed to simulate alternating current signals, which directly trigger the protection relays. The results confirmed the feasibility of the proposed system as a low-cost, replicable, educational and research tool, offering a safe and controlled environment for studies in power system protection.