Banca de DEFESA: MARCO ANTONIO CABRERA VIDAL

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : MARCO ANTONIO CABRERA VIDAL
DATA : 10/12/2021
HORA: 16:00
LOCAL: Link remoto
TÍTULO:

SIGNAL GENERATOR WITH FREQUENCY CONTROL FOR THERMOELECTRIC MODULE EXCITATION.

PÁGINAS: 65
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Elétrica
SUBÁREA: Circuitos Elétricos, Magnéticos e Eletrônicos
ESPECIALIDADE: Circuitos Eletrônicos
RESUMO:

The proposal of this work is to construct a signal generator to excite a thermoelectric plant and to control the temperature in a closed loop system. This leads to construct a process of a Sinusoidal Pulse Width Modulation (SPWM), with applications in signal development engineering. Thus, it can characterize the system with detailed parameters captured by voltage, current and temperature sensors placed inside the thermoelectric modules. For the implementation it was assembled a structure capable of making a bidirectional communication between the Human Machine Interface (HMI) system and the ESP-32 controller that generates low power Pulse Width Modulation (PWM) signals. The construction of the structure to obtain the results also required an amplifier of the H-Bridge type and a low-pass LCL filter. All of this so that the power produced could be transmitted from the generator to a thermoelectric module, which it could be excited at ideal current levels and, thus, gather the behavior of the parameters of the system under study. With the whole system ready the research path was to excite the thermoelectric module in open loop, in one moment, with high frequencies around 206 Hz and, in another moment, in low frequencies of 11,741 Hz and, hence, collect the parameters. Also, it was performed experiments in closed loop with frequency control and thus controlling the temperature which the results were an overshoot of 0.16\% over the setpoint and a steady state error of 0.25\%. Finally, the experiment used an ON/OFF System, which the output was an overshoot of 5.8\% over the ideal point.

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 1205456 - LUIZ ALBERTO LUZ DE ALMEIDA
Membro Titular - Examinador(a) Interno ao Programa - 2200473 - JOSE ALBERTO TORRICO ALTUNA
Membro Titular - Examinador(a) Externo à Instituição - ELAINE INÁCIO BUENO - IFSP
Membro Suplente - Examinador(a) Externo à Instituição - OMAR ALEXANDER CHURA VILCANQUI