Controle de temperatura com placas Peltier utilizando o método de linearização por realimentação
Over the last decades the industry has been using process control methods increasingly sophisticated and precise. However, is still possible to find traditional methods at many industrial facilities. At the past, the utilization of non-linear control methods required high cost equipment. Nonethel...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/42918 |
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| Resumo: | Over the last decades the industry has been using process control methods
increasingly sophisticated and precise. However, is still possible to find traditional
methods at many industrial facilities. At the past, the utilization of non-linear
control methods required high cost equipment. Nonetheless, technological
advancements made the creation of simple and low-cost devices possible, such
as Arduino, which are capable of control non-linear systems satisfactorily. This
paper proposes an implementation of the feedback linearization in a cooling
application to test its viability for utilization at the industry. Peltier Plates were
used to control the cooling process of a aluminum plate. The cooling process was
also made using a traditional control method, the on/off. The objective is to
compare the two methods, identifying the advantages and disadvantages of each
one. An Arduino controller was used to do the experiments, associated with other
electronic components, such as an electric source, resistors and capacitors.
Through de heat transfer theory and tests made at the test bench, the system
control equations were defined, and they were inserted at the system
programming. Then the experimentation using the feedback linearization and
on/off methods were made, and with the data collected, graphs were elaborated
to compare the two methods. The feedback linearization method showed more
stability, precise and advantageous at the system power management topic. It is
concluded then that this method is a viable option to be applied at the industry,
since its implementation it is not complex and its performance is higher than the
traditional control methods. |
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