05.1 - Graduação (UACSA)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2909
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3 resultados
Resultados da Pesquisa
Item Projeto e implementação de um conversor cc-cc boost com controle Proporcional-Integrativo-Derivativo (PID)(2023-04-26) Lima, Bruno de Freitas; Oliveira, Elias Marques Ferreira de; http://lattes.cnpq.br/2576044894885888; http://lattes.cnpq.br/4293028027442685This work proposes the analysis of PID controllers developed using a mathematical tool, pidtool, to define the controller parameters for controlling a boost converter. The boost converter is designed to ensure a 15V output with a fixed 5V input. Experiments without the use of controllers are performed to confirm the voltage level increase. When the controllers are implemented, an 8V setpoint is defined for the output to protect the connected components in case of potential failures, considering it is a prototype. Computational simulations and practical experiments are conducted using the proposed converter parameters to compare the step response of the proposed controllers. Finally, a discussion is held on the collected data, the applicability of the matlab pidtool in designing PI, PD, and PID controllers, and a brief discussion on future studies regarding the impact of different hardware types on control.Item Comparação de desempenho das técnicas de controle PID e por modo deslizante no rastreamento de trajetórias de um sistema dinâmico não linear com motores de hélice(2019-12-12) Silva Júnior, Edivaldo Sebastião da; Medeiros, Philippe Eduardo de; http://lattes.cnpq.br/5594617038786753Currently, control systems are gaining more and more prominence in the scientific environment and in the industrial environment, this wider scope of control systems is mainly due to the theoretical and technological advances in control engineering. This advance involves the solidification of increasingly robust control techniques, especially non-linear control techniques. In view of this fact, this work consists of comparing the PID linear control technique and the non-linear sliding control technique, both techniques being applied in a second order nonlinear dynamic system. The comparison of the PID control and the control by sliding mode, discussed in this work, took place from numerical simulations of the Seesaw Propeller system and also through physical experiment using a real plant of the system. The results presented in this work contain the individual performance of each controller, from a quantitative analysis of its performance, these analyzes were made for both the numerical simulations and the experiments carried out. These results are expressed throughout the work by means of graphs and through the analysis of the mean square error presented by each controller.Item Controle de sistemas dinâmicos não lineares via linearização por realimentação com compensação Fuzzy de incertezas(2019-07-11) Montenegro, Marcelo Costa; Medeiros, Philippe Eduardo de; Martins, Weliton Soares; http://lattes.cnpq.br/9333618261815257; http://lattes.cnpq.br/5594617038786753; http://lattes.cnpq.br/8933714162193368Through the advancement of technology, and consequently of computation, non-linear control methods are developing more and more in the scientific environment, promoting a solid theoretical and experimental basis in this area. The objective of this work is the application of the technique of nonlinear control linearization by feedback linearization for the control of nonlinear dynamic systems. Since this technique has a great limitation, which is the need for precise knowledge of the parameters and the dynamics of the plant to be controlled, a fuzzy compensator has been developed to provide an additional control effort in order to compensate for all the uncertainties present in the system. The fuzzy compensator stands out because it does not require prior knowledge of the system model. In addition to the theoretical development of the Feedback Linearization technique and the fuzzy compensator, a linear controller of the PID type will be used for comparison purposes with the non-linear techniques discussed. To prove the effectiveness of the technique presented, it will be applied to the position control problem of a seesaw propeller system, which in a simplified way has a certain analogy with one of the degrees of freedom of an unmanned aerial vehicle. Numerical simulations and experimental results will be presented to show the performances of the controllers addressed in the present work.