APPLIED ELECTROMAGNETICS LABORATORY – LMAG
Research Group:
Name 1José Roberto Cardoso
Name2 Silvio Ikuyo Nabeta
Name3 Viviane Cristine Silva
Name 4Luiz Lebensztajn
Name5 Ivan Eduardo Chabu
Name 6 Carlos Antonio França Sartori
Contact to: Professor José Roberto Cardoso,
e-mail: [email protected]
Tel + 55 (0) 11 3091-5415,
http://www.lmag.pea.usp.br
About the Group:
The
Applied
Electromagnetic
Laboratory
(LMAG) acts in two different, but complementary
areas: the development of computational software
for electromagnetic field computation based in the
Finite Element Method and their application for
the study and the analysis of electric machines and
grounding systems. In the first area, the group can
be considered one of the brazilian pioneering
groups on finite element field computation. The
group also develops studies on Electromagnetic
Compatibility, mainly on the evaluation of the
electromagnetic environment on rooms of control
and instrumentation, during the lightning stroke in
the metallic structures of the installation. The
works developed by the group guarantee a very
high number of publications on congresses and
index magazines.
LMAG also has a high
international insertion through the Congresses and
Workshops that it organizes. The group organized
in 1997, together with the UFSC and the UFMG,
the Compumag'97- CONFERENCE ON THE
COMPUTATION OF ELECTROMAGNETIC
FIELDS, at Rio de Janeiro, the most important
international congress in this research area. The
relationship of LMAG with the productive sector
is intense with relation to the application of our
developed computational programs. They provide
1
Professor titular do Departamento de Engenharia de Energia e
Automação Elétricas – PEA
2
Professor Associado do PEA
3
Professor Associado do PEA
4
Professor Associado do PEA
5
Professor Doutor do PEA
6
Pesquisador Doutor PEA
some analyses that allow a product optimization
during the design phase. Companies as SIEMENS,
ELETROPAULO, RAIMAN, SINGER, ITAIPÚ,
PETROBRAS,
MERCEDES
BENZ,
MITUTOYO, SEW do BRASIL, CPTM, ARNO
and others, look for LMAG for works together.
The group receives scientific supports from
several Brazilian research councils. The group has
two scientific cooperation with foreign groups: the
Laboratoire Ampère (Ecole Centrale de Lyon,
France) thanks to the CAPES-COFECUB
exchange program and with the Institute for
Electrical Machines RWTH Aachen University
(Germany), thanks to PROBRAL (CAPESDAAD) exchange program. We are also
developing an Optimization Package, together
with UFSC and UFMG, thanks to the CAPES
program PROCAD. Our PhD and MSc students
receive scholarships from FAPESP, CNPq, and
CAPES. The following research projects had been
developed on 2006 and 2007:
1. Research Projects:
2.1 Lmag-2d:
Electrical
Analysis
A 2d FEM Package For
Equipments and Systems
Coordinator: Silvio I. Nabeta
Collaborators: Luiz Lebensztajn, Viviane Cristine
Silva, Maurício Caldora Costa, Sérgio Luiz Lopes
Verardi, Fábio Henrique Pereira
Most of electrical equipments (motors, generators,
transformers, etc) have bidimensional symmetry,
in Cartesian coordinate or axisymmetric. Thus, its
performance can be obtained accurately by an
electromagnetic field calculation in its cross
section. LMAG2D is a 2D Finite Element package
that allows performing static, quasi-static and
time-stepping analysis taking into account electric
circuit couplings. It also considers nonlinear,
isotropic and non-isotropic materials and
permanent magnets. In the post-processing
module one can calculate the forces, torques,
losses, induced currents, etc.
Keywords : Electromagnetic field computation,
Numerical method.
Grants: CNPq, CAPES
Research Assistance: Bruno Amado Rodrigues
Filho (MSc CNPq), Sérgio L. L. Verardi
(PRODOC-CAPES), Fabio H. Pereira(CNPq–
PhD), Mauro M. Sakamoto (CNPq-PhD)
1.2. Electromagnetic Devices Optimization
Coordinator: Luiz Lebensztajn
Collaborators: Sergio Luciano Avila
A set of computational tools was developed to
facilitate the optimization of electromagnetic
devices, when these are analyzed by FEM.
Stochastic optimization methods were adopted
and this implies a high number of evaluation of
the objective function and the constraints. This
aspect is undesirable in the scope of the FEM, due
to its high computational cost.
To overcome this problem, the use of surrogate
functions was adopted. Those functions substitute
the FEM with low computational cost. The use of
this technique implies a small loss of precision,
but the optimization process becomes viable.
Amongst the adopted methodologies it can be
cited: the Diffuse Element Method, the Response
Surface Method, the Multiquadrics, the Radial
Basis Functions and the interpolations of the
Kriging type.
The same strategy was also used for the multiobjective optimization problems. In this case we
have adopted the Kriging interpolations.
New methodologies of optimization had been
implemented in the period, as the Pattern Search
Method and the Particle Swarm Optimization.
Keywords: Optimization, Response Surface
Method
Research Supports: CAPES-PROCAD, CNPq,
FUSP
Research Assistance: Sérgio L. Ávila (Pós-DocStage-CAPES), F. E. Consolmagno and Kiyoshi
Kuramoto (PIBIC-CNPq), L. Z. Barbosa, C.
Nazarethe and E. S. Yoshida (FUSP-IC).
1.3. GROUND-3D: Finite element modeling of
substation grounding.
Coordinator: José Roberto Cardoso
Collaborators: Viviane C. Silva, M. F. Palin,
Lucas B Martinho.
GROUND3D
is
a
finite-element-based,
computational tool developed to model
electromagnetic
phenomena
in
substation
grounding systems in three-dimensions. It
provides usual figures of grounding systems, such
as grounding impedances and both step and touch
potentials.
This tool has been used by the most important
Electric Utilities in São Paulo, such as
ELETROPAULO, CESP and CPFL.
Currently, the code is being improved to include
high frequency phenomena, in order to compute
the complex impedance of the system, as well as
the electromagnetic fields nearby.
Keywords: grounding, finite elements
Research Supports: CNPq e FAPESP
Research Assistance: Marcelo F. Palin(CNPqPhD), Lucas Blattner Martinho(CNPq-MSc)
1.4 EBahn: Computer software for DC
traction simulation
Coordinator: José Roberto Cardoso
Collaborator: Silvio I. Nabeta, Cassiano L. Pires
Since the 80's LMAG has developed several
researches on electric railway traction.
The result of these researches is a high
performance software, called EBahn, for DC
railway and subway traction simulation. This tool
presents the following simulation possibilities:
Train performance simulation: with the track
profile (curves and grades), the tractive effort
diagram and some operational characteristics like
station stop time, the software does the train
performance simulation and calculates, among
other results, train speed, electric power and
current as function of train position.
Traffic simulation: the train trajectory calculated
by the train performance simulation and other
operational data – like headway and number of
trains in the line – is now data for traffic
simulation which calculates a simple timetable for
the simulated line.
DC Load flow: in a railway or subway line, trains
are constantly changing their positions and loads.
At each specific time, trains, substations, contact
line and earthing system establish a different DC
circuit configuration. These changes repeat every
headway time.
With those different circuit configurations and
different solutions it is possible to calculate the
rectifier substation load and its reflection on AC
side.
Keywords: Electric traction, Railway traction.
Research Supports: CNPq
Research Assistance: Cassiano Lobo Pires(CNPq
Pos-Doc Stage)
1.5 Development of a Tubular Linear Electric
Motor, Applied in the Drive of Plunger-Type
Pumps in On-Shore Oil Extraction Wells.
Coordinator: Ivan Eduardo Chabu
Colaborators: José Roberto Cardoso e Bernardo
Pinheiro de Alvarenga
The aim of this project is the research and
viability study of the use of linear motors in such
application. The project comprises also the
development and construction of a real-sized
prototype of the motor, with modular concept,
designed for the drive of reciprocating plungertype pumps, applied in oil extraction plants. The
proposed application enables the substitution of
the conventional surface mounted equipment used
in on-shore oil wells, as well as the elimination of
the rod-string for the plunger driving movement,
with all its characteristic associated problems. In
the new proposed system the tubular motor (so
called by the acronym MATÆOS, see figure) will
be installed just over the pump, in the bottom of
the well, performing the required reciprocating
movement with any link with the surface. This
project was initially supported under a FAPESP
technology innovation program and resulted in a
patent pending process in the INPI. In this initial
process, a two-module prototype was built, as well
as
a
test
bench
for
electromagnetic
characterization of the motor. At the moment the
project continues under direct financial support
from PETROBRAS.
MATÆOS
The main objective is the thermal characterization,
the motor sealing system study and the control
system design. A new prototype was constructed
and a more complete test bench, including an oil
tank for motor immersion. A load application
device and a control system were built, enabling
the simulation of more realistic operational
conditions.
Keywords: Tubular Motor, Oil Extraction
systems
Reasearch Supports: FAPESP, CAPES,
PETROBRÁS
Research Assistance: Wagner Marques Rossini
(CNPQ-MSc)
1.6 Research on New Magnetic Topologies
Applied in Electrical Machines
Coordinator: Ivan Eduardo Chabu
Collaborators: Silvio I. Nabeta, Viviane C.Silva,
J.R. Cardoso, L. Lebensztajn
This is the general designation for the machines
whose configuration is far from the classical ones.
In general, electrical machines are composed of
structures excited by means of permanent magnets
or by appropriate windings, usually located in the
rotating part. In high speed or high reliability
applications, rotating magnets or windings may be
troublesome. In this research, non-conventional
magnetic circuit configurations are studied, where
excitation windings are transferred to the
stationary part of the machine. In permanent
magnet machines a more efficient utilization of
these material are permitted. With these
topologies, new calculation techniques are needed,
invariably
requiring
a
three-dimensional
numerical analysis for complete characterization.
They represent also a relatively large domain for
new proposals and optimization techniques,
because usually there is not a single solution for
them. Beyond this research line, nowadays are
studied electrically excited synchronous and
brushless machines, with stationary field windings
and passive rotors, as well as permanent magnet
machines with axial flux concentration schemes.
1.7. Lightning Protection System Optimization
Coordinator: José Roberto Cardoso
Collaborators: Carlos Antonio França Sartori,
Caio E. Tsumura and Otávio Luís de Oliveira
Digital equipments on substations, computer
installations and communications in buildings
require some special studies regarding the general
aspects of Electromagnetic Compatibility. Some
of them are the electromagnetic environment
evaluation of the region where these equipments
are installed. In particular, the resulted EM
Environment due to direct lightning stroke should
be
emphasized.
This
phenomenon
are
characterized by high transitory currents that
flows in the structure and produces electric and
magnetic fields resulting in malfunctions or
damages to the electronic equipment. In order to
evaluate, the software LIGHTNING (developed at
LMAG) were developed and it calculates the
incident current and reflected current, using an
original time-domain hybrid method. After
determining the currents, the distributions of
magnetic and electric field are evaluated. Thus,
based on the field distribution, the designer of the
installation has all the information to elaborate the
best layout, considering the immunity level of the
equipment and systems. On the other hand, the
resulted surges on the internal energy distribution
system should also be taken into consideration. In
order to follow the surge immunity requirements,
the Surge Protection Device SPD Coordination
should be carried out. In order to satisfy such
requirements, a methodology was developed by
this group, in which the Student Version of Spice
is used as a tool.
Keywords: optimization, Field and Surge
Coordination, Lightning Protection System,
electromagnetic Compatibility.
1.8. Magnetic Signature Analyses applied to
Electric Systems Fault Detection.
Coordinator: Carlos A. F. Sartori
Collaborators: Francisco X. Sevegnani, and
Matheus Garcia Pelegrina
This methodology relates the magnetic field
profile evaluation and the aspects concerning the
power energy quality. In particular, the fault
detection in electric systems is considered. It
differs from the traditional ones, in which a
physical access to the conductors is necessary, by
processing the resulting magnetic signature signal
through Wavelets tools.
Keywords: Wavelets, Magnetic Signature.
Research Supports: FUSP
Research Assistance: M. G. Pelegrina (IC-FUSP)
1.9. Development of a Non-Canonical
Reverberant Chambers Model
Coordinator: Carlos Antonio França Sartori
Collaborators: José Roberto Cardoso, Evandro
Fernandes Heleno, Djonny Weinzierl, e Mario
Alves dos Santos Junior
Recommended by the current International Standards,
the reverberation chambers represents a technical and
economical alternative to the traditional anechoic
chambers. In order to develop a new concept of
reverberation chamber, a Non-Canonical one is
proposed that uses conductors instead of paddles to
obtain the stirring EM Field. The reverberation
chambers configuration performance is evaluate by
applying the numerical methods TLM (Transmission
Line Matrix) and FIT (Finite Integration Technique).
Analytical and Statistical Indexes of merit are taken
into account.
Research Supports: FAPESP
Research Assistance: Djonny Weinzierl
Keywords:
Reverberation
Chambers,
Electromagnetic Compatibility
1.10. Crosstalk: Multiconductors Transmission
Lines coupling Evaluation
Coordinator: Carlos Antonio França Sartori,
Collaborators: André Tosin, and William
Gerlach Dietz.
It should be mentioned as examples of crosstalk
analysis, the ones regarding EMI between
transmission lines and telecommunication signals,
between PCB via etc. Moreover, It should be
mentioned that the prediction of the related
crossatlk problems can represent a huge economy
of investments, and it can be applied decreasing
the electromagnetic emissions, and improving the
immunity of the systems.
Keywords:
Crosstalk,
Electromagnetic
Compatibility
1.11. Biologic Effects and Bioengineering
Coordinator: José Roberto Cardoso
Collaborators: Carlos A. F. Sartori, Yasmara C.
De Polli Migliano, Dúlio Lopes Júnior
The experience of this research group is basically
related to the works concerning the developments
of techniques regarding the biological tissue
dielectric properties measurements, and their
utilization on studies regarding non-ionizing
electromagnetic radiation effects, simulation and
development of a magnetic stimulation prototype
applied to bone healing, and a transcutaneum
energy transmission system (TETS) used to
supplies an implantable auxiliary artificial heart.
Keywords: Biologic Effects,
Energy Transmission System.
Transcutaneum
1.12 Numerical Evaluation of On-Board
Electromagnetic Environment based on
Radiated Source Equivalent Labaratorial
Models
Coordinator: José Roberto Cardoso
Collaborators: Carlos A F. Sartori, Mario L.
Pereira Filho, Viviane C. Silva, Luiz Lebensztajn,
This Project aims to develop a methodology in
which, based on the radiated EM Field
measurement, the equivalent radiated source is
obtained, and used in numerical simulations. The
methodology assumes an important role
concerning the electromagnetic compatibility
evaluation of on-board systems, like the ones
concerning the automotive, naval and aeronautical
industries.
Keywords:
Electromagnetic
Environment,
Electromagnetic compatibility, on-board systems,
Numerical Methods.
Research Supports: CAPES-COFECUB
Research Assistance: Mario A dos Santos Junior
2. Publications
2.1
Publications in Journals
PIRES, C. L. ; NABETA, S. I. ; CARDOSO, J. R.
.ICCG method applied to solve DC traction load
flow including earthing models. IEE Proceedings.
Electric Power Applications, v.1, p. 193-198,
2007.
PEREIRA, F.H.; PALIN, M.F. ; VERARDI,
S.L.L. ; SILVA, Viviane Cristine ; CARDOSO, J.
R. ; NABETA, S.I. . A wavelet-based algebraic
multigrid preconditioning for iterative solvers in
finite-element analysis. IEEE Trans on Magnetics,
v. 43, p.1553-1556, 2007.
SILVA, V.C.; CARDOSO, J. R. ; NABETA, S.I. ;
PALIN, M.F. ; PEREIRA, F.H. . Determination of
frequency-dependent characteristics of substation
grounding systems by vector finite-element
analysis. IEEE Transactions on Magnetics, v. 43,
p.1825-1828, 2007.
TOSIN, A.; GERLACH, W. ; SARTORI, C. A.
F.; CARDOSO, J. R. . Application of Spice
simulator in the evaluation of crosstalk
computational models. COMPEL v. 25, n. 3, p.
668-676, 2006.
PERDIZ, F. A B.; LEBENSZTAJN, L.
Multiobjective
Optimization
Applied
to
Electromagnetic Devices. Journal of Microwaves
and Optoelectronics, v. 6, p. 167-177, 2007.
FERREIRA, D. W.; NABETA, S. I.;
LEBENSZTAJN, L. Finite Element Analysis and
Synchronous Machine Parameter Determination.
Journal of Microwaves and Optoelectronics, v. 6,
p. 178-188, 2007.
PEREIRA, F. H.; VERARDI, S. L. L. ; NABETA,
S. I. A Fast Algebraic Multigrid Preconditioned
ConjugateGradient Solver. Applied Mathematics
and Computation, Holanda, v. 179, n. 1, p. 344351, 2006.
PEREIRA, F. H.; VERARDI, S. L. L. ; NABETA,
S. I. A wavelet-based algebraic multigrid
preconditioner for sparse linear systems. Applied
Mathematics and Computation, Holanda, v. 182,
p. 1098-1107, 2006.
ROSSI, L. N.; CARDOSO, J. R.; SILVA, V. C..
An educational approach on FEM applied to
electromagnetic
field
computation.
ICS
Newsletter, Southampton, v. 13, n. 1, p. 2-8, 2006.
DIAS, C. G.; CHABU, I. E. . On-Line Rotor Fault
Detection: A New Approach Using Magnetic Flux
Analysis. WSEAS Trans. on Power Systems,
Estados Unidos, v. 1, n. 11, p. 1930-1936, 2006.
DIAS, C. G.; CHABU, I. E. . Analysis of broken
rotor bars in large induction motors. Exacta (São
Paulo), v. 4, p. 407-415, 2006.
SOUCHARD, Yves, MARECHAL, Yves,
JÉROME, Guy, SARTORI, Carlos Antonio
França. Adaptative Object Models Architecture
for Simulation Software Design. International
Journal of Applied Electromagnetics and
Mechanics., v.IOS, p.211 - 217, 2006.
SARTORI, Carlos Antonio França, CARDOSO,
José Roberto, ORLANDI, Antonio, MARECHAL,
Yves Evaluation of the Grounding System
Influence on Field Coordination Studies Applied
to LPS Optimization. International Journal of
Applied Electromagnetics and Mechanics., v.IOS,
p.467 - 472, 2006.
2.2 Awards
ROSSINI, W.M.; CHABU, I.E.; CARDOSO, J. R.;
ALVARENGA, B.P.; DA CRUZ, J.J.; SALLES, R.M.
- Prêmio Petrobras de Tecnologia - Co-autores de
trabalho classificado em primeiro lugar na Categoria
mestrado -2007, Petróleo Brasileiro SA.
DIAS, C.G.; CHABU, I. E. - 2º Prêmio Werner Von
Siemens de Inovação Tecnológica - Premio de trabalho
classificado em 3º lugar – 2006, Siemens Ltda.
ROSSINI, W.M.; CHABU, I.E.; CARDOSO, J. R.;
ALVARENGA, B.P.; DA CRUZ, J.J.; SALLES, R.M.
- 2º Prêmio Werner Von Siemens de Inovação
Tecnológica - Co-autores de trabalho premiado com
menção honrosa - 2006 , Siemens Ltda.
2.3 Publication on Conferences
SAKAMOTO, M.; CARDOSO, J. R. ; SALLES, M. A
Delaunay refinement algorithm using an initial prerefinement from boundary mesh. In:COMPUMAG
2007, v. 1. p. 87-88.
CARDOSO, J. R.; ROSSI, L.N. ; SILVA, V.C. ;
MARTINHO, L. B. . 3D-FEA of electromagnetic: an
approach based on the direct application of Maxwell´s
equation. In: -COMPUMAG 2007. v. 2. p. 489-490.
PEREIRA,
F.H.;
SAKAMOTO,
M.
M.;
LEBENSZTAJN, L. ; CARDOSO, J. R. ; NABETA, S.
I.. The lifting technique for adaptive mesh refinement.
In: COMPUMAG 2007, v. IV. p. 1097-1098.
PEROTONI, M. ; SARTORI, C. A. F. ; CARDOSO, J.
R. . Signal integrity analysis of two coupled microstrip
lines. In:COMPUMAG 2007. v. IV. p. 1159-1160.
WEINZIERL, D.; PEROTONI, M.; SARTORI, C. A.
F. ; CARDOSO, J. R. ; KOST, A. . Numerical
evaluation of non-canonical reverberation chamber
configuration. In: COMPUMAG 2007 v. IV. p. 11671168.
COSTA, M.C.; PEREIRA Fº., M. L. ; SALLES, M. ;
CARDOSO, J. R. A new methodology for power
system quality analysis of umbilical cables using 2DFinite Element Method. In: COMPUMAG 2007. v. IV.
p. 1185-1186.
WEINZIERL, D. ; SANTOS JR, M.A. ; PEROTONI,
M.; CARDOSO, J. R.; KOST, A. Statistical evaluation
of non-canonical reverberation chambers. In: IMOC
2007 Salvador : v. 1. p. 630-633.
CARDOSO, J. R.; WÜNSCH F., V.; SANTANNA,
L.F.; GOUVEIA, N.; LIPP, M.; BARBIERI, F.E.;
PEREIRA F., M.L. Electromagnetic Fields Sao Paulo
Project. In: EHE,06, 2006, Lisboa, v. 01. p. 3.51-3.54.
CARDOSO, J. R.; PEREIRA Fº., M. L. A Coupled 3D
CSM - BEM software tool to evaluate ELF fields near
power lines..In: Digest of EHE,06 – Lisboa, 2006. v.
01. p. 1.135-1.140.
CARDOSO, J. R. ; L JUNIOR, D. ; ANDRADE, A. ;
SARTORI, C. A. F. Analysis of the Performance of a
Transcutaneum Energy Transmission System. In:
EHE,06 - Lisboa 2006. v. 01. p. 2.47-2.49.
PEROTONI, M ; SARTORI, C. A. F. ; CARDOSO, J.
R. . 3D simulation of terahertz-frequency selective
surfaces. In: CBMAG'2006, BELO HORIZONTE. p.
P2-1-P2-4.
PEROTONI, M.; SARTORI, C. A. F. ; CARDOSO, J.
R. Simulation of a reverbertion chamber applied to
vehicular purposes. In:CBMAG'2006 p. P21-1-P21-4.
SAKAMOTO, M. M.; MACHADO, J. M.;
CARDOSO, J. R. . Desenvolvimento de uma estrutura
de dados genérica para o algoritmo de Delaunay Bi e
Tridimensional usando contêineres da STL. In:
CBMAG'2006, BELO HORIZONTE. v. 1. p. P46-1P46-5.
DIETZ, W. G ; TOSIN, A. ; SARTORI, C. A. F. ;
CARDOSO, J. R. . Análise de crosstalk devido a
descargas atmosféricas utilizando-se do aplicativo
SPICE. In: CBMAG'2006 BELO HORIZONTE. v. 1.
p. CD-1-CD-4.
ROSSINI, W. ; ALVARENGA, B. P.; CHABU, I. E.;
CRUZ, J. J. da ; SALES, R. M.; CARDOSO, J. R..
Bancada de testes de motor linear tubular para extração
de petróleo. In: CBMAG'2006, BELO HORIZONTE.
p. CD-1-CD-4.
ROSSINI, W.; ALVARENGA, B. P.; CHABU, I. E.;
CRUZ, J. J. da ; SALES, R. M.; CARDOSO, J. R..
Nova concepção para bombeamento de petróleo em
terra. In: Petroleum and chemical industry conference Brazil´2006, Rio de Janeiro. v. 1. p. 82-91.
SARTORI, C. A. F.; OLIVEIRA, O. L. ; CARDOSO,
J. R. . Coordination of surge protective devices using
"Spice" student version. In: ISEF 2007 ,Praga.p. 18-19.
BELARDI, A.A. ; SARTORI, C. A. F. ; CARDOSO, J.
R. ; LEONARDI, F. . Electrical Rotating Equipament
Failure Detection Using Wavelet Based Current
Signature. In: CEFC 2006, Miami, Florida, p. 361
NABETA, S. I.; CHABU, I. E.; LEBENSZTAJN, L.;
Corrêa, D. A. P. ; da Silva, W. M. ; HAMEYER, K. .
Mitigation of the Torque Ripple of a Switched
Reluctance Motor Through a Multi-Objective
Optimization. In: COMPUMAG, 2007, Aachen. p.
827-828.
LEBENSZTAJN, L. NAZARETHE, C.; BARBOSA,
L. Z.;. Including Constraints on Multi-Objective
Optimization for Electromagnetic Device Design. In:
COMPUMAG, 2007, Aachen. p. 1119-1120.
LEBENSZTAJN, L.; MARRETTO, C. A. R.. Using
Derivatives to Improve the Accuracy of Metamodels on
Electromagnetic
Device
Optimization.
In:
COMPUMAG 2007, Aachen. p. 1121-1122.
NABETA, S. I.; CHABU, I. E.; LEBENSZTAJN, L.;
CARDOSO, J. R.; Corrêa, D. A. P.; da Silva, W.M.;
COSTA, M.C.; HAMEYER,K. Kriging Models and
Torque Improvements of a Special Switched
Reluctance Motor.In: IEMDC07, 2007,Antalya. p. 559563.
LEBENSZTAJN, L.; CONSOLMAGNO, F. E.
Funções de Aproximação Aplicadas ao Projeto de
Equipamentos Eletromagnéticos. In: MOMAG2006,
Belo Horizonte, p. 212.1-212.4.
LEBENSZTAJN, L. ; BARBOSA, L. Z. . Derivative
Free Optimization Algorithms in Electrical Machine
Design. In: CEM 2006, Aachen. p. 149-150.
PEREIRA, F. H.; PALIN, M. F.; VERARDI, S. L.L. ;
NABETA, S. I. . A Parallel Wavelet-based Algebraic
Multigrid black-box Solver and Preconditioner. In:
COMPUMAG 2007, Aachen. p.1095-1096.
PEREIRA, F. H.; RODRIGUES, B. A. ; SILVA, V. C.;
NABETA, S. I. Nonlinear Magnetic Field Problems
Solution by a V-Cycle Wavelet-based Algebraic
Multigrid Preconditioned Conjugate Gradient-like
Solvers. In: COMPUMAG’ 2007, Aachen. p. 10991100.
CARDOSO, J. R.; ROSSI, L. N.; SILVA, V. C.;
MARTINHO, L. B. 3D-FEA of Electromagnetics: an
approach based on the direct application of Maxwell’s
equations. In:COMPUMAG 2007, Aachen. p. 489-490.
PEREIRA, F. H.; PALIN, M. F.; VERARDI, S. L. L. ;
SILVA, V. C. ; NABETA, S.I. . Um pré-condicionador
Multigrid Algébrico baseado em wavelet na análise 3D
em regime permanente senoidal pelo MEF utilizando
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SILVA, V. C. ; CARDOSO, J. R; NABETA, S. I. . A
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Iterative Solvers in 3D time-harmonic Electromagnetic
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PALIN, M. F. ; PEREIRA, F. H. Determination of
frequency-dependent characteristics of substation
grounding systems by vector finite element analysis.
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Diagnosis of broken bars in large induction motors by
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DIAS, , C. G.; CHABU, I. E. Hall effect sensor and
artificial neural networks applied on diagnosis of
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J. R. . Full-wave simulation of a vehicle test in a
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dos Elementos Finitos. 2007. 159 f. Tese Universidade
de São Paulo, CNPq. Advisor: Silvio Ikuyo Nabeta.
Cassiano Lobo Pires. Simulação do Sistema de Tração
Elétrica Metro-Ferroviária. 2006. 404 f. Tese da USP,
CAPES. Advisor: Silvio Ikuyo Nabeta
2.6 MSc Dissertations
William Gerlach Dietz. Análise de Interferência
Eletromagnética entre Condutores Múltiplos com a
Aplicação do Simulador Spice. 55 f. Dissertação
Universidade de São Paulo, CAPES. Advisor: Carlos
Antonio França Sartori
Evandro Fernades Heleno. Avaliação do desempenho
de câmaras reverberantes através do método numérico
TLM. 2006. 133 f. Dissertação Universidade de São
Paulo, Advisor: Carlos Antonio França Sartori.
2.4 Thesis (Livre-Docência)
André Camargo Mathiazzi. Análise da variação da
tensão gerada e do estado de magnetização em um
gerador com ímãs permanentes.2007. Universidade de
São Paulo, Advisor: Ivan E. Chabu.
Viviane Cristine Silva Método de Elementos Finitos
Aplicado à Solução de Problemas de Aterramento
Elétrico Tese (Livre-Docência em Engenharia Elétrica)
- Universidade de São Paulo 78 p. 2006
Bruno Amado Rodrigues Filho. Estudo da
convergência no Método de Elementos Finitos (MEF)
aplicado a dispositivos eletromagnéticos não lineares.
2007. Dissertação Universidade de São Paulo, CAPES.
Advisor: Viviane Cristine Silva
Luiz Lebensztajn Aplicacão de Funçoes de
Aproximação na Análise e Síntese de Equipamentos
Eletromagnéticos.
Tese
(Livre-Docência
em
Engenharia Elétrica) - Universidade de São Paulo 69p.
2007.
2.5 PhD Thesis
Marcelo Facio Palin. Técnicas de decomposição de
domínio em computação paralela para simulação de
campos eletromagnéticos pelo método de elementos
finitos. 2007. Tese - Universidade de São Paulo, CNPq.
Advisor: Viviane Cristine Silva.
Cleber Gustavo Dias. Proposta de um novo método
para detecção de barras rompidas em motores de
indução com rotor em gaiola. 2006. 203 f. Tese Universidade de São Paulo Advisor: Ivan E. Chabu.
Mauro Massayoshi Sakamoto. Algoritmo de
refinamento de Delaunay a malhas seqüênciais
adaptativas e com processamento paralelo. 2007. Tese
Universidade de São Paulo, CAPES. Advisor: José
Roberto Cardoso.
Fábio Henrique Pereira. O Método Multigrid Algébrico
na resolução de Sistemas Lineares oriundos do Método
Indexes
Publication in Journals
Books
Chapter of Books
Patent
Awards
Publication on Conference
Thesis (Livre-Docência)
PhD Thesis
MSc Dissertation
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