Protocolo de comunicação microcontrolado por STM32 para o acionamento de estudos de banco de envelhecimento de IGBT's

Abstract

This work shows the development and results of a system drive project to study the ageing of a bank of Insulated gate bipolar transistors (IGBT) in the context of developing and improving direct current (DC) transmission lines. Firstly, a summary of the context of the project that gave rise to this work will be presented, together with the objectives that are to be met during the development of this project using the resources made available by the STM32 microcontroller. Secondly, the equipment used during the research will be presented. In this section, the equipment used to develop this system, such as controllers, transistors, cables, mechanical contact switches, etc., will be listed and briefly explained with technical data from the datasheet. This is followed by a more specific presentation of the objectives to be achieved at the end of the project. The development of the work shows which solutions were used to achieve the objectives and their results with brief explanations of the reasons for their successes and failures through isolated validations of the proposed solutions. It will also show the results of validating the final solution chosen, by integrating the system with the SpeedGoat real-time simulation system. Part of the validation will be carried out using the debugger interface of the development environment used, the other part of the validation will be carried out using the validation model developed in Simulink Matlab by the engineer responsible for the project and the last validation will be carried out to analyze the output and input signals by means of voltage and time interval. Finally, after the final validation, it is concluded that the proposed communication protocol meets expectations and fulfills all its objectives, defined during its development, for communication between the relevant parties and the detection of faults due to lack of communication or invalid messages.