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This thesis analyses the behavior of an induction motor based on a mathematical model created for its simulation. The model describes the interaction of its several non linear differential equations to present a simulated output of induced torque and mechanical speed. Considering the applications to marine propulsion, it is also the goal of the project to design and test a control system for the speed of the motor by maintaining a specific cruse speed regardless the perturbations. / by Camilo Carlos Roa. / Thesis (M.S.C.S.)--Florida Atlantic University, 2010. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2010. Mode of access: World Wide Web.

<p>This thesis presents, analyzes and suggests solutions to the dead-lock problem of the sensorless variable speed drive NFO Sinus. Friction, measurement, parameter estimation and quantization effects are believed possible origins of this problem and is hence studied. A short introduction to ¯eld oriented control of the asynchronous AC motor and the NFO Control strategy is also included.</p><p>The report is published at LiTH as ISRN LiTH-ISY-EX--06/3945--SE and at LTH under ISRN LUTFD2/TFRT--5780--SE.</p>

This thesis presents, analyzes and suggests solutions to the dead-lock problem of the sensorless variable speed drive NFO Sinus. Friction, measurement, parameter estimation and quantization effects are believed possible origins of this problem and is hence studied. A short introduction to ¯eld oriented control of the asynchronous AC motor and the NFO Control strategy is also included. The report is published at LiTH as ISRN LiTH-ISY-EX--06/3945--SE and at LTH under ISRN LUTFD2/TFRT--5780--SE.

Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 152-158).

Thesis (Ph. D.)--Ohio State University, 2005. / Title from first page of PDF file. Includes bibliographical references (p. 120-126).

Thesis (Ph. D.)--Ohio State University, 2005. / Title from first page of PDF file. Includes bibliographical references (p. 170-177).

Visual sub-modalities, such as colour, form and motion perception, are analysed in parallel by three visual “pathways” – the parvocellular (PC), magnocellular (MC) and koniocellular (KC) pathways. This thesis aims to further elucidate some properties of the subcortical pathways for colour vision. The experimental animal used throughout is a New World monkey, the common marmoset Callithrix jacchus. (For complete abstract open document)

Orientador: Edson Bim / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação / Made available in DSpace on 2018-08-09T08:39:36Z (GMT). No. of bitstreams: 1 SguareziFilho_AlfeuJoaozinho_M.pdf: 4747025 bytes, checksum: 077f211f88c422646414f234628ad798 (MD5) Previous issue date: 2007 / Resumo: Este trabalho visa o estudo de métodos de projeto de controladores mediante o emprego da função de transferência complexa; o controle em baixas velocidades de um motor de indução trifásico orientado no fluxo do rotor, bem como no do estator, é o objetivo a ser alcançado. A formulação do modelo vetorial do motor de indução com emprego da função de transferência complexa e do controle vetorial são apresentados. Para validar a proposta, um controlador de ganho proporcional complexo é realizado. Resultados de simulação e de experimentos são obtidos / Abstract: This work aims the study of tunning methods for controllers on vector control using the complex transfer function; low speed control by using the rotor or stator flux orientation on the induction motor is the objetctive. The complex transfer function formulation, its aplication on induction machine model and vector control are presented. To validate the proposal, a proportional complex gains is proposed. Simulation and experimentally results are presented. / Mestrado / Energia Eletrica / Mestre em Engenharia Elétrica