ANÁLISE COMPARATIVA DO DESEMPENHO DE UM CONTROLADOR PI E PID APLICADO EM UM MOTOR DE CORRENTE CONTÍNUA

Abstract

This work aims to propose a comparative analysis between two controllers applied in a DC motor. From the concepts seen along the course, it is possible to study the electric and dynamic behavior of a DC motor and to establish a transfer function that will be used to apply the control actions. In the industry knowing how an engine behaves at certain input signals is of considerable importance, generally the design of these control systems involves complex structures, sophisticated equipment and high cost. In addition, most of the solutions available on the market are limited and not flexible, making it difficult to introduce new technologies for performance improvement. We will present a study of the dynamic response of DC motors submitted to a step input, using the nominal armature voltage as a specific value, in order to carry out an analysis regarding the starting of these machines. PI (integral proportional) and PID (proportional integral derivative) controllers were studied and inserted into the motor circuit separately and simulated using the Matlab software and represented by block diagram. The answers obtained after the insertion of the controllers will be analyzed and discussed, according to the results presented in this work.