“SE SEUS PROJETOS FOREM PARA UM ANO,SEMEIE O GRÂO.SE FOREM PARA DEZ ANOS,PLANTE UMA ÁRVORE.SE FOREM PARA CEM ANOS,EDUQUE O POVO.”

“Sixty years ago I knew everything; now I know nothing; education is a progressive discovery of our own ignorance. Will Durant”

OBRIGADO DEUS PELA VIDA,PROTEGENOS E GUARDANOS DE TODO MAL


AUTOR DO BLOG ENG. ARMANDO CAVERO MIRANDA SAO PAULO BRASIL

sexta-feira, 27 de fevereiro de 2015

DESIGN AND IMPLEMENTATION OF A CURRENT SOURCE CONVERTER BASED ACTIVE POWER FILTER FOR MEDIUM VOLTAGE APPLICATIONS THESIS SUBMITTED TO THE GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES OF MIDDLE EAST TECHNICAL UNIVERSITY BY ALPER TERC˙IYANLI








DESIGN AND IMPLEMENTATION OF A CURRENT SOURCE CONVERTER BASED ACTIVE POWER FILTER FOR MEDIUM VOLTAGE APPLICATIONS
Terciyanlı, Alper Ph.D., Department of Electrical and Electronics Engineering Supervisor : Prof. Dr. Muammer Ermis¸ Co-Supervisor : Prof. Dr. Is¸ık C¸ adırcı March 2010, 179 pages

This research work is devoted to the design, development and implementation of a Current Source Converter (CSC) based Active Power Filter (APF) for Medium Voltage (MV) applications. A new approach has been proposed to the design of the CSC based APF for reducing the converter kVA rating considerably. This design approach is called the Selective Harmonic Amplification Method (SHAM), and is based on the amplification of some selected harmonic current components of the CSC by the input filter, and the CSC control system, which is specifically designed for this purpose. The proposed SHAM has been implemented on the first industrial CSC based APF for the elimination of 11th and 13th current harmonics of 12-pulse rectifiers fed from Medium Voltage (MV) underground cables in order to comply with IEEE Std. 519-1992. 450 kVA rated APF with only 205 kVA CSC rating has been connected to the MV bus via a coupling transformer of 1600kVA, 34.5/1.1 kV. The power stage of the CSC based APF is composed of water-cooled high voltage IGBT and diode modules. Reference currents to be generated by the CSC are obtained by the use of a selective ha harmonic component. An Active damping method is also used to suppress the oscillations around the natural frequency of the input filter, excluding the harmonic components to be eliminated by APF. Simulation and field test results have shown that SHAM can successfully be applied to a CSC based APF for reduction of converter kVA rating, thus making it a cost-competitive alternative to voltage source converter based APFs traditionally used in industry applications.
 LINK ORIGINAL
http://etd.lib.metu.edu.tr/upload/12611767/index.pdf

quinta-feira, 26 de fevereiro de 2015

Model Predictive Control of Power Electronics Converter - Jiaying Wang - Master of Science in Electric Power Engineering Norwegian University of Science and Technology

Abstract
 Voltage-source PWM (Pulse Width Modulation) rectifier can provide constant DC bus voltage and suppress harmonic distortion of grid-side currents. It also has power feedback capability and has a broad prospect in the field of DC power supply [1], reactive power compensation, active filtering and motor control system. This dissertation studies the theory and implementation of PWM rectifier and completes the following tasks: 1. Analyze three-phase voltage-source PWM rectifier (VSR), including its topology, mathematical model and principle. Derive Clarke transformation and Park transformation and analyze the mathematical model in the two-phase αβ stationary coordinate and dq rotating coordinate. 2. Make a detailed analysis on the principle and characteristics of Direct Power Control (DPC) strategy and Model Predictive Control (MPC) strategy and study the instantaneous active power and reactive power flow in the rectifier. 3. Based on the principle of traditional switching table of DPC, an improved table is proposed. Then this project presents a further improved switching table to achieve better control performance and the simulation model in Matlab/Simulink environment is established to verify the algorithm of voltage-oriented direct power control strategy. 4. Based on different strategy studies and the simulation results from DPC system, propose our model predictive control (MPC) algorithm. 5. Analyze the modulation principle of the space vector pulse width modulation (SVPWM). 6. Build the MPC-SVPWM model in Matlab/Simulink to verify our MPC algorithm. 7. The simulation result shows that MPC-SVPWM performs better in harmonic suppression, unity power factor, DC output voltage ripple coefficient and dynamic response than DPC. Key words: PWM rectifier, unity power factor, direct power control, model predictive control,

LINK
http://www.diva-portal.org/smash/get/diva2:566308/FULLTEXT01.pdf

Design and Control of a DC Collection Grid for a Wind Farm-LENA MAX-Department of Energy and Environment CHALMERS UNIVERSITY OF TECHNOLOGY Goteborg, Sweden 2009





Design and Control of a DC Collection Grid for a Wind Farm LENA MAX Department of Energy and Environment Chalmers University of Technology 
Abstract
In this thesis, the internal DC collection grid for a wind farm is investigated regarding the design, losses and dynamic operation for both normal operating conditions and for different fault conditions. The main advantage for the DC collection grid is the considerably lower weight of the 1 kHz transformers in the DC/DC converters compared to the equivalent 50 Hz transformers. For a wind farm with 48 2.3 MW wind turbines, and a DC/DC converter in each turbine as well as a main DC/DC converter for the whole wind farm, the losses for the DC system are 3 % of the transferred power, which is similar to the losses of a corresponding AC collection grid. For the dynamic control of the wind farm, the DC/DC converters control the power flow in the wind farm and thereby also the voltage levels for the 1.5 kV DC link in the turbine as well as for the 32 kV DC collection bus. For the limited bandwidth resulting from the switching frequency 1 kHz and the maximum voltage deviations of 5 % for the DC voltages, the required capacitances are 152 mF for the DC link in the wind turbine and 16 mF for the DC bus, both giving a stored energy corresponding to 74 ms transferred rated power. In the case of a fault in the connecting main grid, the output power from the wind farm must be decreased. Here, assuming that the excess power is dissipated in each turbine, the detection of the fault as well as the disconnection and the reconnection of the wind farm are investigated. The requirements for the HVDC link to avoid over voltages during a grid fault are stated and it is also shown that the reconnection can be done within 14 ms, which is well within the time specified in existing grid codes. Further, the behavior of the system during internal faults for the DC bus is investigated. Methods for detecting and finding the location of the faults are determined, and it is shown that a faulted part can be disconnected and the non-faulted parts reconnected within 300 ms without using fully rated DC breakers. Index Terms: DC/DC converter, DC collection grid, loss evaluation, wind energy, control design, fault handling. iii
LINK FULL PAPER
http://publications.lib.chalmers.se/records/fulltext/101249/101249.pdf

A Simple procedure to evaluate the efficiency and power density of power conversion topologies for offshore wind turbines Rene Barrera-Cardenas,∗ , Marta Molinas Department of Electric Power Engineering, Norwegian University of Science and Technology, NO-7491, Trondheim, Norway


Abstract
The prospective development of the offshore wind energy conversion system is mainly promoted by demand for higher efficiency and power density. This paper describes a simple procedure to calculate the efficiency and power density of power conversion systems for offshore wind turbines. The proposed method can be used as starting point into the linear design process to calculate the losses in semiconductors and transformer as well as the volume of main elements. With the losses and volumes, efficiency and power density can be calculated. In order to illustrate the evaluation procedure, the reduced matrix converter with single-phase transformer is considered like example topology. The Efficiency-Power-density Pareto Front is obtained for a set of design parameters. The methodology is eminently suitable for comparison of power converter with different topologies. © 2012 Published by Elsevier Ltd.
LINK FULL PAPER
http://www.sciencedirect.com/science/article/pii/S1876610212011423

sábado, 21 de fevereiro de 2015

Source Transformations P4.61 Nilsson Riedel Electric Circuits 9E Solution

SYLLABUS DE CURSOS GRADUAÇÃO ENGENHARIA ELETRÔNICA UNIVERSIDADE FEDERAL SANTA CATARINA BRASIL


LISTA COMPLETA DE TODOS OS CURSOS ENGENHARIA ELETRÕNICA UNIVESIDADE FEDERAL DE SANTA CATARINA DURANTE OS 10 SEMESTRES
LINK
http://cagr.sistemas.ufsc.br/relatorios/curriculoCurso?curso=235

Laboratório de Circuitos Elétricos I - JULIO C. BRANDELERO THIAGO H. AKINAGA Graduandos do curso de engenharia elétrica da Universidade Federal de Santa Catarina-BRASIL


 Laboratório de Circuitos Elétricos I JULIO C. BRANDELERO THIAGO H. AKINAGA Graduandos do curso de engenharia elétrica da Universidade Federal de Santa Catarina
 LINK PARA BAIXAR CURSO LABORATORIO CIRCUITOS ELÉTRICOS I
http://www.eletrica.ufpr.br/ufpr2/professor/36/TE215/circuitos_I.pdf
LINK ALTERNATIVO
https://copy.com/zktf1PdzCE68FANm

Primeiros passos com o Osciloscópio DIGITAL

Osciloscópio Analógico-CURSO F329 - FÍSICA EXPERIMENTAL III - Medidas elétricas, instrumentos, circuitos elétricos.-UNICAMP-BRASIL

quinta-feira, 19 de fevereiro de 2015

FACULDADE DE ENGENHARIA ELÉTRICA E DE COMPUTAÇÃO - UNICAMP-BRASIL- EE 833 ELETRÔNICA DE POTÊNCIA-Roteiros dos laboratórios

FACULDADE DE ENGENHARIA ELÉTRICA E DE COMPUTAÇÃO - UNICAMP
EE 833 ELETRÔNICA DE POTÊNCIA

EE833 - Eletrônica de Potência - 1S/2015

Professores:

 Marcelo Gradella Villalva mvillalv@dsce.fee.unicamp.br Sala 327
 Hildo Guillardi Júnior hildogjr@dsce.fee.unicamp.br LE27
 José Antenor Pomilio
Créditos: 4
Horário:    221 222  - Segundas-feiras, 21 às 23 horas
                  519 520  - Quintas-feiras, 19 às 21 horas
Sala: LE-18
Recursos
Roteiros dos laboratórios

Autor: Prof. José Antenor Pomilio
            Prof. Marcelo Gradella Villalva

 Módulo 1 Retificadores não-controlados (diodos): comportamentos não-ideais dos retificadores mono e trifásico. Análise do fator de potência e da distorção harmônica das correntes consumidas.
 Módulo 2 Circuitos com tiristores: controle de fase e acionamento de motor cc com controle de velocidade.
 Módulo 3 Circuitos com TRIAC: controle por ciclos inteiros para acionamento de carga resistiva em controle de temperatura.
 Módulo 4 Caracterização de dispositivos semicondutores rápidos de potência: diodos, transistor bipolar, MOSFET e IGBT.
 Módulo 5 Circuitos com transistores MOSFET: aplicação em fonte chaveada operando com Modulação por Largura de Pulso, com controle da tensão de saída.
 Módulo 6 Circuitos com IGBTs: geração de sinais MLP para comando de inversor monofásico para obtenção de tensão alternada senoidal.
 Módulo 7 Circuitos com IGBTs: inversor monofásico alimentando carga indutiva com controle de fluxo. Acionamento de motor de corrente alternada com ajuste de velocidade.

LINK ORIGINAL  PARA BAIXAR OS MODULOS DE LABORATORIO ZIPADOS
https://sites.google.com/site/mvillalva/ee833-1s-2015/modulos.zip?attredirects=0&d=1

LINK ALTERNATIVO
https://copy.com/WLqbwgWu9XSpkuTO

High-Performance Pulsed Power System Based on Solid-State Switch: Design, Implementation, and Applications Dissertation note: Thesis (Ph.D.) - Korea University of Science and Technology







ABSTRACT
 The recent proliferation of applications requiring pulsed power at a high repetition rate has led to greater research focus on the development of solid-state pulsed power systems that exploit the advantages of semiconductor switches, including the ease of control over output pulses, and the high repetition rate and long life span offered by such devices. However, to realize practical solid-state pulsed power systems, several limitations must first be overcome such as the difficulty in series operation for semiconductor devices and high-voltage energy charging with high efficiency. In addition, the importance of the semiconductor devices protection circuit against arcing condition in guaranteeing reliable operation cannot be overemphasized. This study explored the design, implementation, and applications of a high-performance solid-state pulsed power system by addressing each of the aforementioned difficulties.   * A thesis submitted to committee of the University of Science and Technology in a partial fulfillment of the requirement for the degree of Doctor of Philosophy in Electrical Engineering conferred in April 2011 The proposed design is applicable to a variety of applications owing to its several distinctive features such as flexible output voltage, pulse width, and repetition rate with stabilized arcing protection. Charging efficiency is addressed using a novel, compact, soft-switching technology based hybrid converter that offers high efficiency over a wide range of load conditions and controllable output voltages. A voltage-doubler rectifier and a transformer with multiple secondary windings are included in the system for parallel charging of multiple capacitors simultaneously from one charging inverter. It has been verified that the developed charger can be effectively applicable to the proposed solid-state pulsed power system. Through the study, a new series connection method is proposed based on power cell units with simple gate drive circuits operating with a pulse control loop. The proposed pulse generator affords not only high reliability and efficiency but also high repetition rate and fast rising time. This dissertation describes the detailed design procedure for the developed solid-state pulsed power system made of a high-efficiency capacitor charger and a highly reliable pulse generator. Experimental results are included verifying the performance characteristics and novelty of the proposed solid-state pulsed power system with the maximum pulse repetition rate of 50 kpps, total efficiency of 92 %, output pulse voltage of 0–10 kV, and pulse width of 1–10 μs. Finally, it was confirmed that implemented solid-state pulsed power system can be effectively applied to a plasma source ion implantation for diamond like carbon coating and a plasma immersion ion milling for nano scaled mold. The proposed system can be applied to a wide range of industry system such as pollution control systems for water and gas treatment due to its flexibility.

terça-feira, 17 de fevereiro de 2015

EE833 Eletrônica de Potência - Graduação-UNICAMP-BRASIL-PROF. ANTENOR POMILIO,PROF.TIAGO BUSARLLO,PROF.MARCELO VILLALVA

WEBSITE DO CURSO EE833 ELETRÕNICA DE POTENCIA COM NOTAS DO CURSO E EXERCICIOS
http://www.dsce.fee.unicamp.br/~antenor/ee833.html

EA611 – Circuitos II – Turma U – 2o. Semestre de 2014 FEEC – UNICAMP -BRASIL-EJERCICIOS ,NOTAS DEL CURSO


WEBSITE DO CURSO COMPLETO CIRCUITOS II - EA611- UNICAMP-PROFESSOR CARDIERI
LINK
http://www.decom.fee.unicamp.br/~cardieri/NotasdeAula_EA611/

FUNDAMENTOS DE ANALISE DE CIRCUITOS ELÉTRICOS


LINK
https://www.scribd.com/doc/132129977/Fundamentos-de-Analise-de-Circuitos-Eletricos-David-E-Johnson-John-L-Hilburn-Johnny-R-Johnson

EA-513 Circuitos Elétricos UNIVERSIDADE DE CAMPINAS UNICAMP BRASIL PROFESSOR PHD. RENATO BALDINI

Capítulo 12 Potência em Regime Permanente C.A



WEBSITE DO CURSO COMLETO  EA-513 CIRCUITOS ELÉTRICOS UNICAMP
http://www.decom.fee.unicamp.br/~baldini/EA513.htm
WEBSITE DO PROFESSOR RENATO BALDINI
http://www.decom.fee.unicamp.br/~baldini/

segunda-feira, 16 de fevereiro de 2015

Dynamic Power Flow Control for a Smart Micro-grid by a Power Electronic Transformer JALPA KAUSHIL SHAH FACULTY OF THE GRADUATE SCHOOL OF THE UNIVERSITY OF MINNESOTA




Title Dynamic power flow control for a smart micro-grid by a power electronic transformer
.Autor Shah, Jalpa Kaushil Data 2011-05 Type
Thesis or Dissertation
 Resumo
A novel strategy, for control of the power flow for a smart micro-grid is proposed. The utility grid power is dynamically controlled by a Power Electronic Transformer (PET). A 60 Hz, step-down transformer is generally used at the point of common coupling (PCC), to connect the micro-grid to the power system grid. Substitution of the conventional 60Hz transformer, by a PET, results in enhanced micro-grid power management system, during grid-connected operation. The smart micro-grid is a set of controllable loads and distributed energy resources (DER); both renewable and non-renewable; that supply demand of a group of customers. The proposed dynamic power limiter (also referred to as PET) is a high-frequency, isolated power-converter system, comprised of a highfrequency step-down transformer and three-phase to single-phase matrix converters. The matrix converters are modulated with a novel pulse width modulation (PWM) strategy for a bi-directional power flow control.
LINK FULL THESIS
http://conservancy.umn.edu/bitstream/handle/11299/108278/Shah_umn_0130E_11942.pdf?sequence=1&isAllowed=y

Smart grid, a new source towards a more efficient and prosperous future Hong Ji-hye Korea University Graduate School of International Studies





초록 ( Abstract )
There is a growing agreement around the need we have to solve our problems from challenges like energy or power system security to issues on environment such as climate change by changing our ways that we supply and use energy. While the current power grid has leaded the economic growth over the past century and still works well, our electric infrastructure is rapidly running up against its limitations because the currently existing power grid has been expanded based on the 20th century design requirement which the important matters in contemporary days such as energy efficiency, environmental impacts and consumer choices were not considered at all. So, this is the time to invest for transforming into a more advanced grid system to achieve energy efficiency, good impacts on environment, and consumers’ empowerment. The advanced system which is considered as the most suitable model for a more energy efficient and prosperous future is a smart grid. When we deploy a smart grid, we will be able to realize more efficient, reliable, resilient, secure, responsive, and cleaner electric grid system. Moreover, as it is anticipated, a smart grid will be a driving force creating new business opportunities in energy market, electronic home appliances, automobile, and commercial or residential construction sector. So, both public and private sectors are making investment and promoting various activities to be the early movers in smart grid related areas. But as well as technical problems, we have financial challenges because transforming to a smart grid requires new and expensive investments and commitment by its many stakeholders. So understanding how the value of transforming to a smart grid will be created is an important step in defining the vision. And this is because why carefully designed regulations and standards and the most effective policy measures are required.
목차 ( Index )
1. Introduction 1
2. Need for Energy Efficiency Enhancement 3
2.1 Uncertainty of the Conventional Energy Sources Market 3
2.1.1 Rapidly growing energy demand 3
2.1.2 Supply insecurity 3
2.1.3 The projected energy price volatility 4
2.1.4 The limited reserves 4
2.2 Rising Concerns for the Environment 4
2.3 Sustainable Growth 5
2.4 Steps Forward 5
3. Current Status of the Electricity Sector 7
3.1 Significant Role of Electric Systems 7
3.2 Limited Aspects of Current Grid 7
3.2.1 Reliability 8
3.2.2 Economy 9
3.2.3 Affordability 9
3.2.4 Security 10
3.2.5 Environment 10
3.3 Transition to a Smarter Grid 11
4. Characteristics and Benefits of Smart Grid 13
4.1 The Concept of a Smart Grid 13
4.2 The Scope of a Smart Grid 14
4.2.1 Area, regional and national coordination regimes 14
4.2.2 Distributed energy resource technology 15
4.2.3 Delivery (Transmission and Distribution: T&D) infrastructure 15
4.2.4 Central generation 16
4.2.5 Information networks and finance 16
4.3 Characteristics of a Smart Grid 16
4.3.1 Informed participation by customers 17
4.3.2 Accommodation of all generation and storage options 17
4.3.3 Introduction of new markets, products, and services 18
4.3.4 Provision of power quality for the range of needs 18
4.3.5 Optimization of asset utilization and operating efficiency 19
4.3.6 Resiliency to disturbances, attacks, and natural disasters 19
4.3.7 Anticipation to system disturbances 20
4.4 Benefits of a Smart Grid as an Alternative Model for the Future 20
4.4.1 Advanced market mechanism with empowered consumers 21
4.4.2 Improved efficiency, affordability, and economics 23
4.4.3 Higher reliability 24
4.4.4 Environmental friendliness 25
4.4.5 Better security 26
5. Current Investment and Development Trends 28
5.1 Public Sector in the Republic of Korea and the United States 28
5.1.1 The Republic of Korea 28
5.1.2 The United States 29
5.1.3 Collaborative activities of the two leading countries 30
5.2 Industry Trends 30
5.3 Utilization Cases of Smart Grid Related Technologies 33
5.3.1 Distribution Management System platform by University of Hawaii 33
5.3.2 Perfect Power by Illinois Institute of Technology 34
5.3.3 West Virginia Super Circuit by Allegheny Energy 34
5.3.4 Beach Cities Micro-grid by San Diego Gas and Electric 35
6. Business Opportunities Created by Smart Grid 36
6.1 New Opportunities in Electricity Market Related Sector 36
6.2 New Opportunities in Electronic Home Appliances Sector 39
6.3 New Opportunities in Automobile Sector 40
6.4 New Opportunities in Commercial or Residential Construction Sector 41
7. Challenges Ahead 43
7.1 Technical and Industrial Challenges 43
7.2 Financial and Business Challenges 44
8. Conclusion 46

domingo, 8 de fevereiro de 2015

A STUDY OF STEP-DOWN SWITCHNG MODE RECTIFIER AND APPLICATION OF SERIAL-PARALLEL BALANCE CHARGING FOR LI-ION BATTERY ARRAYS- LIN SHU HAN- TATUNG UNIVERSITY


A STUDY OF STEP-DOWN SWITCHNG MODE RECTIFIER AND APPLICATION OF SERIAL-PARALLEL BALANCE CHARGING FOR LI-ION BATTERY ARRAYS- LIN SHU HAN
THESIS FOR MASTER OF SCIENCE DEPARTMENT OF ELECTRICAL ENGINEERING TATUNG UNIVERSITY

LINK THESIS
https://copy.com/mgODBN3A7wCR6vWH

Improved transformer insulation assessment using dielectric response analysis PowerOn TTSC June 2014: Matz Ohlen, Megger

PowerOn TTSC June 2014: Brian Cheung, ABB Ltd

Avoiding Pitfalls in Coordination of Multi-Mode UPS and STS L Giuntini



 Session F1.04 - Avoiding pitfalls in coordination of multi-mode UPS and STS L Giuntini From: PEMD 2014, Session F1: Energy Conversion and Storage, 8 - 10 April 2014, Manchester 08 April 2014 Power channel

1.Introduction
 Uninterruptible Power Supplies (UPS) provide power conditioning and backup for mission critical applications, the typical example being the protection of Information Technology (IT) equipment in data centres installations. In this context, double-conversion is the preferred UPS topology [1], following the superior protection offered by the AC-DCAC conversion. However, the multiple conversion steps limit the efficiency of such topology. Therefore, some doubleconversion UPS have evolved towards Multi-mode operation, where efficiency is maximized by selecting the operating mode depending on the environmental conditions (namely, the power quality of the input mains). Performance of Multimode UPS and compatibility with the typical load requirements have been extensively discussed in [2, 3, 4]. At the same time, applications requiring the highest level of availability may improve their distribution reliability by means of redundancy. Particularly, multiple sources may be tied together by means of Static Transfer Switches (STS). These devices may switch between separate sources whenever the voltage of the active source is sensed as going out of given tolerances, just as in Multi-mode UPS. Therefore, the application of Multi-mode UPS operation and STS protection in the same installation poses significant challenges. This paper addresses the coordination of Multimode UPS and downstream STS by highlighting common pitfalls to be avoided,
2 Multi-mode UPS
Figure 1 depicts a basic block diagram for a doubleconversion
transformer-based UPS
GE Consumer & Industrial SA, Via Cantonale 50,CH-6595 Riazzino, Switzerland, lorenzo.giuntini@ge.com
LINK VIDEO
http://scpro.streamuk.com/uk/player/Default.aspx?wid=19227&ptid=1066&t=0

sexta-feira, 6 de fevereiro de 2015

Modelagem da Dinâmica de Sistemas e Estudo da Resposta




Modelagem da Dinâmica de Sistemas e Estudo da Resposta - Segunda Edição Esta obra atende a cursos de graduação e cursos iniciais de pós-graduação cujos respectivos programas contemplem modelagem da Dinâmica de Sistemas. A técnica de modelagem aqui ensinada utiliza metodologia especial que se resume na divisão das expressões matemáticas em dois grupos: equações e relações. Foi acrescentado ainda o estudo da resposta, assunto indispensável para compreender o comportamento dinâmico de sistemas, necessário na elaboração de projetos, análise e avaliação de sistemas. Os assuntos foram cuidadosamente selecionados e didaticamente desenvolvidos, com base na experiência de muitos anos de ensino de modelagem.
LINK ORIGINAL
http://issuu.com/rimaeditora/docs/modelagem_segedicao_parte_1/1


COMSOL WEBINAR Title: Tech Insider: Transformer and Inductor Modeling with COMSOL Multiphysics February 12, 2015 Time: 02:00 PM Eastern Standard Time

Summary
Thursday, February 12, 2015 • 2:00 PM Eastern Standard Time 

To minimize transmission losses, electrical grids transport power over distances at low currents and high voltages. Improving the performance and reliability of transformers, which are vital to minimizing these losses, has great potential value. Multiphysics simulation enables accurate transformer and inductor design by accounting for coupled electrical and thermal effects, such as Joule heating. This webinar will introduce techniques for modeling inductive couplings and will demonstrate the simulation of a transformer in COMSOL Multiphysics. The presentation will also include a Q&A session.

REGISTER NOW

LINK