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Previous issue date: 2017-03-30 / O desenvolvimento da tecnologia tem alavancado desafios cada vez maiores para
que se produzam bens de consumo com alto grau de seguran?a e de controle e que
tamb?m apresentem robustez, pre?os competitivos e sejam ecologicamente corretos.
Visando atender essa demanda, dentro daquilo que lhe compete, o campo da
engenharia de m?quinas el?tricas tem melhorado sensivelmente a qualidade desses
equipamentos bem como os m?todos de controle, buscando uma opera??o otimizada.
Contudo, ainda se registram grandes limita??es na amplia??o do uso das m?quinas
de indu??o devido ao alto ?ndice de manuten??es das partes mec?nicas, como mancais
e rolamentos, principalmente quando o acesso a essas pe?as ? dif?cil. Por conta
disso, a ?rea de pesquisa de motores-mancais de indu??o vem progredindo, com
o objetivo de minimizar o desgaste mec?nico e, consequentemente, reduzir o n?mero
de manuten??es. Vale ressaltar que esses motores apresentam caracter?sticas
semelhantes ?s das m?quinas de indu??o convencionais, sendo que agregam maior
robustez e praticidade, al?m de possu?rem menor custo. Este trabalho descreve o estudo e a implementa??o do controle de posi??o radial
aplicado a uma m?quina de indu??o sem mancais, trif?sica com bobinado dividido,
utilizando-se t?cnicas de controle inteligente para a otimiza??o do sistema de posicionamento
radial. A m?quina em estudo consiste em motor de indu??o de 3.7 kW modificado para operar como motor-mancal. Nesse tipo de motor com enrolamento dividido, al?m da produ??o de torque, os grupos de bobinas s?o respons?veis tamb?m pela produ??o de for?as radiais para posicionamento do rotor. A presenta pesquisa prop?e uma metodologia de controle que utiliza como estrutura
um controlador Fuzzy-PD com a??o proporcional e derivativa baseado em um
conjunto de regras de controle formulado em termos lingu?sticos, tendo como principal
objetivo apresentar um controlador inteligente para o posicionamento radial do
rotor. Tamb?m ilustra a compara??o entre o controlador Fuzzy-PD e o Controlador
Proporcional Derivativo - PD para a estabiliza??o radial. Para a avalia??o dos controladores,
foram usados crit?rios de desempenho baseados na integral do erro - IAE,
ISE e ITAE, como solu??o para avaliar o erro a partir de suas respostas transit?rias
e de regime permanente. Destaca-se que todo controle proposto foi desenvolvido
em um DSP eZdsp TMS320F28335 com arquitetura de ponto-flutuante. Quanto
? programa??o, foi utilizada a linguagem C. Com rela??o ?s quest?es do m?dulo,
foram utilizados o conversor Anal?gico/Digital e as sa?das . Por fim, acentua-se que
o sistema de controle implementado no DSP opera com os controladores de corrente
e posi??o. / The development of technology has brought increasing challenges to the production
of consumer goods with a high degree of security and control, and that they
also present robustness, competitive prices and are ecologically correct. In order
to meet this demand, within its competence, the field of electrical machines engineering
has significantly improved the quality of these equipments, as well as the
control methods, seeking an optimized operation. However, there are still major
limitations in the increased use of induction machines due to the high maintenance
rates of mechanical parts such as bearings, especially when access to these parts
is difficult. Because of this, the research area of bearingless motors induction has
been progressing, with the aim of minimizing mechanical wear and, consequently,
reducing the number of maintenance. It is worth mentioning that these motors
have characteristics similar to conventional induction machines, which add greater
robustness and practicality, besides having a lower cost. This work describes the
study and the implementation of the radial position control applied in a three-phase
Bearingless Induction Machine with Divided Winding using intelligent control techniques
for the optimization of the radial positioning. The machine under study
consists of an induction motor of 3.7 kW, modified to operate as a motor-bearing.
In this type of motor with split winding, besides the production of torque, the coil
groups are also responsible for the production of radial forces for rotor positioning.
This research proposes a control methodology that uses as a structure a Fuzzy-PD
controller with proportional and derivative action, based on a set of control rules
formulated in linguistic terms, having as main objective to present an intelligent
controller for the radial positioning of the rotor. It also illustrates the comparison
between the Fuzzy-PD controller and the Derivative Proportional Controller - PD
for radial stabilization. For the evaluation of the controllers, performance criteria
based on the error integral - IAE, ISE and ITAE - were used as a solution to evaluate
the error from its transient and steady state responses. It is noteworthy that all
proposed control was developed in a DSP eZdsp TMS320F28335 with floating-point
architecture. As for programming, the C language was used. Regarding the module
questions, the Analog / Digital converter and the PWM outputs were used. Finally,
it is emphasized that the control system implemented in the DSP operates with the
current and position controllers.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/23646 |
| Date | 30 March 2017 |
| Creators | Santos J?nior, Luciano Pereira dos |
| Contributors | 51618362968, http://lattes.cnpq.br/7865065553087432, Maitelli, Andr? Laurindo, 42046637100, http://lattes.cnpq.br/0477027244297797, Ara?jo, F?bio Meneghetti Ugulino de, 82675090468, http://lattes.cnpq.br/5473196176458886, Ferreira, Jossana Maria de Souza, 02441288474, http://lattes.cnpq.br/7691693293898376, Lopes, Jos? Soares Batista, 03675958426, http://lattes.cnpq.br/7539214391736004, Victor, Valci Ferreira, 66429811468, http://lattes.cnpq.br/7106815422634632, Salazar, Andres Ortiz |
| Publisher | PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA EL?TRICA E DE COMPUTA??O, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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