Zobrazeno 1 - 10
of 18
pro vyhledávání: '"M. V. Ferreira da Luz"'
Publikováno v:
Renewable Energy and Power Quality Journal. :391-395
Publikováno v:
IEEE Transactions on Industrial Electronics. 59:1389-1396
Linear permanent-magnet (PM) actuators with short strokes represent an excellent alternative to pneumatic or hydraulic actuators in different fields of application, whenever fast response, flexibility, high reliability, and safety are required. The p
Autor:
Christophe Geuzaine, Patrick Dular, M. V. Ferreira da Luz, Nelson Sadowski, João P. A. Bastos
Publikováno v:
IEEE Transactions on Magnetics. 38:961-964
In this paper, a three-dimensional permanent magnet generator is modeled using both a- and h-formulations. The rotor movement is modeled by means of the moving band technique in which a dynamic allocation of periodic or antiperiodic boundary conditio
Autor:
Patrick Dular, João P. A. Bastos, Christophe Geuzaine, Nelson Sadowski, M. V. Ferreira da Luz
Publikováno v:
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering. 20:109-119
Connection boundary conditions are studied with the finite element method using different types of mixed finite elements, i.e. nodal, edge and facet elements of different shapes and degrees, used in both b‐ and h‐conform formulations. The develop
Publikováno v:
IEEE Transactions on Magnetics. 37:3444-3447
A method allowing generalization of coupled circuit-field calculation for polyphase electromagnetic devices is presented. Finite element method is used to model electromagnetic devices in 2D and the static converter circuit is studied in the state sp
Autor:
Nelson Sadowski, Patrick Kuo-Peng, M. Lajoie-Mazenc, João P. A. Bastos, M. V. Ferreira da Luz
Publikováno v:
IEEE Transactions on Magnetics. 36:1923-1926
Iron losses in electrical machines are evaluated and analyzed in this work using the time-stepping finite elements method. The three components of total losses, i.e., eddy currents, excess or anomalous and hysteresis are considered. Concerning hyster
Autor:
H. Cislagui da Silva, N. Schwartz da Silva, A. P. Dadam, F. Hidalgo Molina, F. A. Corbelini, M. V. Ferreira da Luz
Publikováno v:
22nd International Conference and Exhibition on Electricity Distribution (CIRED 2013).
This paper presents some results of a new porcelain insulator design applied to distribution networks in Brazil. The mechanical modeling allows the analysis of the flexural strength. In the electrical modeling an axi-symmetric electrostatic formulati
Publikováno v:
2012 XXth International Conference on Electrical Machines.
Elimination of hot spots and reduction of eddy current losses in structural parts is one of the important constituents of transformer design. In this work, the eddy current losses in the clamping frame, transformer tank and electromagnetic shielding
Publikováno v:
2011 IEEE International Electric Machines & Drives Conference (IEMDC).
This paper presents the performance evaluation of two different size 6 slots and 4 poles brushless DC permanent magnet motor. These devices were simulated and tested in order to obtain efficiency, iron losses, copper losses, and shaft power. The simu
Publikováno v:
The XIX International Conference on Electrical Machines - ICEM 2010.
This paper presents the optimization of a small tubular linear motor in order to obtain the best relationship of power, efficiency and volume. A genetic algorithm method with a mathematical model consisting in a Finite Element program and analytical