Sistemas não lineares controlados pela lógica difusa: uma aplicação em acionamentos constituídos por motores assíncronos.

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Author(s):	Werner Wilmer Pacheco Lujan Total Authors: 1
Document type:	Doctoral Thesis
Press:	São Paulo.
Institution:	Universidade de São Paulo (USP). Escola Politécnica (EP/BC)
Defense date:	1999-04-27
Examining board members:	Cicero Couto de Moraes; Yaro Burian Junior; José Jaime da Cruz; Jose Aquiles Baesso Grimoni; José Carlos de Oliveira
Advisor:	Cicero Couto de Moraes
Abstract
The traditional control methods didnt have solved the problem, about the variation of machines parameters, that occurs for different causes, so the analysis models are based on the linearisations methods and it uses parameters that never are known enough. For this reason, it will be proposed one method which is the combination between the classical methods and the Fuzzy Logic where have no any importance the parameters variation and the not linear systems. This work will present the models and simulations of the traditional controllers drivers and the control that is composed by the Fuzzy Logic controller with Field Oriented controller and adaptive controller, using the SIMNON software. The simulation permits to compare the different performances produced by them. Finally the study of the not linearity will be proposed and implemented by a prototype. (AU)