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Projeto e construção de protótipo de motor linear para fins didáticos
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia ElétricaUTFPR, 2016-06-13)
In this work it is showed the process of designing and constructing of a synchronous linear motor with permanent magnets. Therefore, this work begins introducing a theoretical basis of the theme showing the construction ...
Caracterização da deflagração da descarga eletrocirúrgica
(Universidade Tecnológica Federal do ParanáCuritibaPrograma de Pós-Graduação em Engenharia Elétrica e Informática Industrial, 2009-11-27)
Electrosurgical spark is the phenomenon that rules the main effects of electrosurgery, cut and fulguration. Previous studies have shown evidences that electrosurgical sparkling generates important voltages and currents ...
Comportamento harmônico de inversores de frequência
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia ElétricaUTFPR, 2017-11-20)
This work presents a study of the harmonic behavior of a full bridge frequency inverter connected to the distribution network and operating in a stand-alone system. It presents concepts of frequency inverter operation, ...
Evaluation of a multiobjective performance index for distribution systems with distributed generation
(2005-12-14)
Here a multiobjective performance index for distribution systems with distributed generation based on a steady-state analysis of the network is proposed. This index quantifies the distributed generation impact on total ...
Network reconfiguration and loss allocation for distribution systems with distributed generation
(2004-12-01)
Distribution systems with distributed generation require new analysis methods since networks are not longer passive. Two of the main problems in this new scenario are the network reconfiguration and the loss allocation. ...
Effect of Cr2O3 in the varistor behaviour of TiO2
(1996-12-01)
Determination and statistical treatment of short-circuit currents for faults on the lines of networks of 440 kV CESP system
(1995-12-01)
The distribution of short-circuit current is investigated by means of two methods, one direct and the other analytic; both methods consider uniform probability distribution of line faults. In the direct method, the procedure ...
Reliability evaluation of distribution systems considering automatic reclosers
(2004-12-01)
This paper presents a new methodology to evaluate in a predictive way the reliability of distribution systems, considering the impact of automatic recloser switches. The developed algorithm is based on state enumeration ...
Analysis and design of constant-frequency peak-current-controlled high-power-factor boost rectifier with slope compensation
(1996-01-01)
This paper presents the analysis and the design of a peak-current-controlled high-power-factor boost rectifier, with slope compensation, operating at constant frequency. The input current shaping is achieved, with continuous ...