Desenvolvimento de uma interface gráfica para um emulador de cargas mecânicas para ensaios de motores elétricos

Abstract

The present term paper supports the development of a friendly graphical interface for a mechanical load emulation system. This emulator is used for testing three-phase induction motors up to 10 hp. The Human Machine Interface (HMI) is built on the Lazarus® integrated development environment, running on a Raspberry Pi and makes use of the PascalSCADA® library and a Python script for engine speed reading. The developed system under the concept of SCADA (Supervisory Control and Data Acquisition) software, thus aligning the philosophy of reproduction of an industrial laboratory environment where this project was developed. The developed system has an intuitive interface, capable of displaying and storing the electrical and mechanical quantities of the motor during the tests for further analysis. The work begins with a brief presentation on the importance of energy efficiency studies and the three-phase induction motor (MIT) for industry, then goes on to describe the bench used and the requirements that the HMI needs to have. Following is the software used in the development of HMI, and the interface design itself. Subsequently, it shows the final result of the graphical interface, makes some analysis and conclusions about it.