Study on the Voltage Balancing Inverter for UPS

LINK FUL PAPER
http://www.mediafire.com/view/bbb3832we78v8w4/Study_on_the_Voltage_Balancing_Inverter_for_UPS.pdf

COBEP2015 FORTALEZA CEARA BRASIL TUTORIAL DR. CUK

Power Electronics: A New Beginning By Slobodan Ćuk, TESLAco

Power Electronics progress depends on the progress in its two constituent areas: System Technology and Power Management Technology, which had been traditionally developed in the past in companies specializing in either one or the other area of expertise. System Technology companies, or Power Supply companies relied heavily on the use of the components (switches, drive and control circuits) developed by Power Management companies.

The System Technology popularly known as converter topologies has changed very little in last 50 years and is, in fact, the key reason why the Power Electronics as whole has progressed much less despite the tremendous advances made by Power Management companies in developing the new switching devices with ever increasing switching devices power and speed improvements and high performance digital control circuits.

The conventional topologies are analyzed and the sources of their deficiencies are established. This, in turns, leads to the new switching methods and the corresponding novel switching converter topologies which are overcoming all these deficiencies. However, no incremental change will do, but a fresh new look is needed. Hence what is needed is: Power Electronics: A New Beginning!

Dr. Slobodan Ćuk

Dr. Ćuk received his bachelor degree from Belgrade University, Yugoslavia, 1970, MSEE degree from University of Santa Clara, USA 1974 and her Ph.D. from Caltech, California , USA, 1976.

Dr. Ćuk was the full-time Professor of Electrical Engineering at the California Institute of Technology until January 1, 2000 where he conducted research and taught courses in Power Electronics and Fundamentals of Energy Processing. During his 25 years at Caltech, more than 35 students obtained Ph.D. degree in Power Electronics under his guidance. More than dozen of his former students are Professors of Power Electronics in U.S. and abroad while others are leading researchers in the industry.

For the invention of Integrated Magnetics Dr. Ćuk obtained a 1991 Edward Longstreth Medal from Franklin Institute which was for the first time in its 100 years history awarded to researchers in Power Electronics. His publications include over 100 scientific papers in the Power Electronics field and a three-volume book on Switched-Mode Power Conversion.

Over a span of 20 years, Dr. Ćuk has taught a number of public and in-house courses in United States, Europe and Far East, which were attended by over 4,000 Power Electronics specialists. In 1979, Dr. Ćuk founded TESLAco. He holds over 20 patents in switching power conversion filed. Over dozen patents on Ćuk Optimum Power Conversion technology are pending or are currently in preparation.

Dr. Ćuk’s Inventions and Discoveries

1. Optimum Topology Converter, known as the ĆUKconverter (1974)

2. Coupled-Inductor and Integrated Magnetics method (1975)

3. State-space averaging method (1975)

4. TESLAconverter (2000)

5. Hybrid-switching and Storageless-Switching Method (2009)

6. New DC-DC and Bridgeless AC-DC converter topologies (2010):

Discurso de Abertura no COBEP2015-SPEC em Fortaleza-CE Brasil-POWER ELECTRONICS CONFERENCE BRAZIL

MAKELSAN Full Time Fulden-UPS POWER

Makelsan UPS

A study on Auto Transformer protective method for AC electric railway system.

A study on Auto Transformer protective method for AC electric railway system.

 Son, Dong-Shic Department of Railroad Engineering The Graduate School of Green Railroad Woosong University

An AC electric railway uses AT(auto transformer), BT(Booster Transformer), and direct power feeding system. Today, as a result of an increase in use of load current system, AT feeding system has became a mostly and widely used system due to its profitability in high and long-distance power feeding and inductive interference. AT is a core facility of the AC electric railway, a major public transportation, in AT traction power feeding system thus, the suspension of train operation due to the malfunction of AT feeding system would causes not only a high volume of civil petitions but also an interruption to the power supply to the train that could bring a second incident. In general, the power transformer protection is classified into electronic protection that includes differential protection (87T), over current protection (50/51), and earth fault protection (50/51N), and the mechanical protection such as buchholz relay, sudden pressure relay, winding temperature indicator, temperature indicator for insulation oil however, the failure in the operation of AT is protected only by an alarm signal controlled by substation using current and impedance relay. Therefore, to prevent the failure in mechanical protection, sectioning post(SP), sub-sectioning post(SSP), and parallel post(PP) needs to be protected by electronic protection as well as mechanical protection. In addition, accidents related to AT traction power supply system are divided into an outside (on railroad) accident mostly occurred due to traction line earth(T-R earth), feeding line earth(F-R earth), sectioning line earth(F-R earth), and short circuit(T-R short circuit) between feeding and sectioning linen, and an inside (at substation) accident mostly occurred due to earth and short circuit of AT winding furthermore, no matter what type of accident related to AT traction power supply system occurs it is protected by over current or impedance relay from substation Even though the AT related accidents could result in the discontinuation of rail service due to an inability to separate the feeder section, it is difficult to find whether the type of accident is outside or inside. As a result, it unnecessarily costs long time to deal with the accident because of unclearness of the cause.

Network Analysis & Synthesis by Franklin F. Kuo

ESTUDIE INGENIERIA ELECTRONICA CON ESTE LIBRO ES UN GRANDE CLASICO
ENCONTRADO EN LA WEB CON ACCESO LIBRE EN LOS SIGUIENTES LINKS:
LINK ORIGINAL EN LA WEB
https://archive.org/details/NetworkAnalysisSynthesis
LINK DIRECTO PARA BAJAR EN FORMATO PDF
https://archive.org/download/NetworkAnalysisSynthesis/Kuo-NetworkAnalysisSynthesis.pdf

About the Internet Archive  https://archive.org/about/
The Internet Archive is a 501(c)(3) non-profit that was founded to build an Internet library. Its purposes include offering permanent access for researchers, historians, scholars, people with disabilities, and the general public to historical collections that exist in digital format.

Founded in 1996 and located in San Francisco, the Archive has been receiving data donations from Alexa Internet and others. In late 1999, the organization started to grow to include more well-rounded collections. Now the Internet Archive includes: texts, audio, moving images, and software as well as archived web pages in our collections, and provides specialized services for adaptive reading and information access for the blind and other persons with disabilities.

PROBLEMAS RESUELTOS ELECTROMAGNETISMO- LOPEZ R.

AGRADEÇO A COLABORAÇAO DO ENG, JORGE MIREZ DE LA UNI -PERU
LINK ORIGINAL
https://jmirezphysics.files.wordpress.com/2011/10/problemas_resueltos_de_electromagnetismo_2da_edicion_victoriano_lopez_rodriguez.pdf

CALCULO Y ANALISIS DE REGIMENES DE TRABAJO DE REDES ELECTRICAS -VENIKOV,ANISOVA,FOKIN-Расчеты и анализ режимов работы сетей -Веников В.А.,Фокин, Анисова,Федоров

LINK BOOK RUSSIAN VERSION
http://www.mediafire.com/view/u8jrakyr19ftol7/CALCULO_Y_ANALISIS_DE_REDES_ELECTRICAS-VENIKOV.pdf
Electrical network performance calculations and analysis / General editor V. A. Venikov [and others] ; translated from the Russian by O.B. Volodina. - Rev. from the 1974 Russian edition.
Moscow : Mir Publishers,

Anisimova N.D., Ezhkov V.V., Fedorov D.A., Fokin Yu.A., Venikov V.A., Zhukov

Simulación de dispositivos eléctricos en MATLAB y Simulink SimPowerSystems (2008)

LINK FORMATO DJVU
http://mexalib.com/download/15483

LOS PROBLEMAS EN LA TEORIA DE CIRCUITOS VN Popov ,Biryukov

LINK
http://www.mediafire.com/view/gntw1lfb77dgoj5/PROBLEMAS_TEORIA_DE_CIRCUITOS_POPOV.pdf

Fundamentos de la teoría de circuitos Popov VP - Основы теории цепей Попов В.П.

Fundamentos de la teoría de circuitos Popov VP - Основы теории цепей Попов В.П.
El libro corresponde al programa del curso "Fundamentos de la teoría de circuitos." Establece la teoría de circuitos eléctricos lineales con parámetros concentrados y distribuidos en condiciones de estado estacionario y transitorio; Se presta mucha atención al análisis de los fundamentos de circuitos no lineales resistivas, conceptos de matriz topológica, la teoría de grafos, los métodos de la máquina de formación de ecuaciones de equilibrio eléctricos, análisis de circuitos con fuentes controladas.

LINK ORIGINAL EN LAWEB FORMATO DJVU
http://mexalib.com/download/206657

THEORY OF LINEAR ELECTRICAL CIRCUITS-LOSEV

LINK BOOK ORIGINAL EN FORMATO DJVU
http://mexalib.com/download/206714

Development of Three-phase On-Board Battery Charger for PHEV ( plug-in hybrid electrical vehicle ) without High-Capacity Electrolytic Capacitor Graduate School, Myongji University Department of Electrical Engineering ZHANG YINGHAO

Development of Three-Phase On-Board Battery Charger for PHEV without High-Capacity Electrolytic Capacitor Ying-hao, Zhang Department of Electrical Engineering Graduate School, Myongji University Advisor Professor Byung-Moon Han
A new two-stage on-board battery charger which can operate in both three-phase mode and single-mode is proposed for plug-in hybrid electric vehicles (PHEVs). It consists of three identical chargers which connect to battery in parallel, and each of them has a cascaded structure of high frequency resonant converter with a constant switching frequency for electrical isolation, and buck-boost converter for charging control and harmonic regulation of input current under wide range line-input voltage. This structure uses small link capacitors so that high-capacity electrolytic capacitors can be removed in automotive applications. An LLC resonant converter is proposed in the first stage. The parallel buck-boost converters operating in discontinuous conduction mode are employed in the second stage, so that the voltage stress of components could be reduced and the simple controller can be used to control charging current. Digital control of converter is realized by applying DSP (Digital Signal Processor) that performs constant current through duty control of buck-boost converter. Duty ratio of LLC converter is unregulated. Proposed Converter stably operates in various load condition (within 10kW) and it is proven that the proposed converter achieves efficiency of higher than 93% and power factor of higher than 0.99 through experiment..

LINK
http://www.mediafire.com/view/0r5lad355h3odb9/Development_of_Three-phase_On-Board_Battery-28-10-2015%282%29.pdf

FEMM/Finite Element Analysis Tutorial

Tesla introduces Tesla Energy

4th Solar Integration Workshop 2014 | Closing Session - Podium Discussion

ELECTROMAGNETISMO - CLAUDIO GRAÇA-CURSO DE ENGENHARIA MECANICA UNIVERSIDADE FEDERAL DE SANTA MARIA BRASIL

HOJE SURFANDO NA WEB ENCONTRE ESTE INTERESANTE LIVRO EM PORTUGUES DO PROFESSOR CLAUDIO GRAÇA DA UNIVERSIDADE FEDERAL DE SANTA MARIA  NA
SIGUENTE PAGINA WEB PODEM CONFERIR:
http://coral.ufsm.br/cograca/eletro12
LINK ALTERNATIVO
https://copy.com/JEd3vsLmNYRfGiLp
AGRADECIMENTO ESPECIAL AO PROFESSOR CLAUDIO GRAÇA  Curso de Engenharia Mecânica  POR DISPONIBILIZAR LIVREMENTE ESTE LIVRO EN SUA PAGINA NA WEB,ELE ESTA REALIZANDO UM PROJETO DE ENSINO A CURTA DISTANCIA DE FISICA PODEM CONFERIR ESTE GRANDIOSO PROJETO NAS PAGINAS WEB SIGUENTES:
LINK1
http://coral.ufsm.br/cograca/livro.htm
LINK2
http://coral.ufsm.br/cograca/

COLEÇÃO DE PROVAS ENG04074 - Teoria de Circuitos I - Universidade Federal do Rio Grande do Sul Escola de Engenharia Departamento de Engenharia Elétrica-BRASIL

1. IDENTIFICAÇÃO. Nome do Departamento: DELET - DEPARTAMENTO DE ENGENHARIA ELÉTRICA (http://www.ufrgs.br/delet/) Nome da Atividade de Ensino: - ENG04074 - TEORIA DE CIRCUITOS I Cursos(s) de Oferecimento: - ENGENHARIA ELÉTRICA Caráter: - Obrigatória Pré-requisitos por Curso: FIS01182 – FÍSICA GERAL - ELETROMAGNETISMO MAT01354 – CÁLCULO E GEOMETRIA ANALÍTICA II-A

LINK ORIGINAL COM TODAS AS PROVAS
http://www.ufrgs.br/eng04030/Provas/index.htm

EEL420 - Circuitos Elétricos I - Engenharia Biomédica UFRJ - UNIVERSIDADE FEDERAL DE RIO DE JANEIRO BRASIL

COLEÇÃO DE PROVAS CIRCUITOS ELETRICOS EEL420

Provas Anteriores-EXAMENES ANTERIORES

 2007/2, 2008/1, 2008/2, 2009/1, 2011/2, 2012/2, 2014/1,2014/2 e 2015/1.

LINK ORIGINAL DE ENGENHARIA BIOMEDICA
http://www.peb.ufrj.br/cursos/eel420/eel420.htm