ON THE WAY TO FUSION ENERGY Christopher Llewellyn Smith professor at Oxford University-На пути к термоядерной энергетике Кристофер Ллуэллин-Смит,

 LEBEDEV PHYSICAL INSTITUTE MOSCOW
Переключение между языковыми версиями:  TRADUCCION РУС/ENG
APRETA EL BOTON PYC = EN IDIOMA RUSO
APRETA EL BOTON ENG = EN IDIOMA INGLES
 LINK ORIGINAL
http://elementy.ru/nauchno-populyarnaya_biblioteka/430807/Na_puti_k_termoyadernoy_energetike

A 50kW SiC Three-phase AC-DC Converter Design for High Temperature Operation-Virginia Tech Center for Power Electronics Systems -CPES

Sistema elétrico de propulsão para barcos de pequeno porte empregando baterias e energia solar-INEP-UFSC-INSTITUTO DE ELETRÔNICA DE POTÊNCIA-BRASIL

O projeto trata do desenvolvimento de um sistema elétrico de propulsão e de captação de energia solar fotovoltaica para um veículo de transporte marítimo de pequeno porte. Emprega carregadores de bateria (a partir da rede elétrica e de painéis fotovoltaicos), inversor de tensão trifásico e motor. O sistema eletrônico desenvolvido possibilita substituir o sistema de propulsão à combustão em embarcações de pequeno porte. Estas embarcações, projetadas especificamente para o sistema de propulsão elétrica, poderão ser utilizadas para inspeção de lagos de barragens de hidrelétricas. Também poderão ser utilizadas para: - Inspeção e fiscalização em áreas litorâneas da costa brasileira; - Visitação turística em áreas fluviais ou marítimas de proteção ambiental.

Defesa de mestrado - Marcos José Jacoboski-Programa de Pós-Graduação em Engenharia Elétrica-UFSC-UNIVERSIDADE FEDERAL DE SANTA CATARINA-BRASIL

 

A Study of UPS System Using Integrated Source Transfer Switch Method Yong-UkKim Department of Electrical Engineering Graduate School of Industry Pukyong National University

Abstract - Single UPS operation of a plurality of such parallel d related research is going.UPS voltage/constant-frequency supply capacity of STS and multiple UPS parallel operation of the problems caused
due to the combination of transfer function of an uninterruptible power neutrali zing SYSTEM propose a way of switching from traditional asynchronous state on the benefits and Radish only transfer the problems caused by five manual operation of an asynchronous operation and SCR switching behavior is studied.
LINK
http://www.mediafire.com/view/q4mvxqxb3omvic0/STS-UPS.pdf

A Study on Management Standards of Total Harmonics Distortion(THD)measured from UPS - Jeong,Unho Department of Electrical and ElectronicEngineering Graduate School,Dongshin University

The purpose of this paper is to describe UPS(Uninterruptible Power Supply) in a comprehensive measure THD(Total Harmonic Distortion) and compared with domestic and international management standards in harmonics, harmonics reduction measures by analyzing the appropriate UPS technology. Harmonics generated by the UPS. measurements of national standards was confirmed appropriate, UPS comprehensive harmonic currents measured range THD-I limits for national standards, the reference by KSC 4310, THD-V for domestic not based on the site was confirmed. Therefore,The IEEE(Institute of   Electrical and Electronics Engineers)Std.519 i applied in this paper as a reference for domestic standards on THD-V limits management.In recent years,according to integration of KSC standards in to IEC,UPS standards are being revised as KSC IEC 62040,but there are still no regulations for THD-V and THD-Iabout UPS causing confusions in some aspects.Accordingly,in the KSC IEC management standards to be amended which are related to UPS,I consider the introduction of the integrated regulatory limits on THD-V andTHD-I which are currently mixed to be very urgent. Therefore In this paper, we measured the THD-I and THD-V for UPS domestic and international management standards and harmonic comparison and analysis results were as follows.
LINK
http://www.mediafire.com/view/zfro9hz339iatjb/A_Study_on_Management_Standards_of_Total_Harmonic_Distortion%28THD%29_measured_from_UPS.pdf

A Study on the Heat Flow Inside UPS according to the Outside Temperature -Dong – Min Kim Department of Mechanical Engineering, The Graduate School Konyang University Nonsan Chungnam Korea

Dong – Min Kim Department of Mechanical Engineering, The Graduate School Konyang University Nonsan Chungnam Korea

 UPS is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails. When installing UPS in outdoors (a road near or mountain, etc..), it is also possible many problems according to the outdoor environment. And it is possible generate condensation by a temperature difference The purpose of this study was to predict the inner temperature of UPS and to prevent dew condensation in UPS by simulating the heat flow using ANSYS. So in this study, The inner heat flow simulations for UPS were conducted by the Computation Fluid Dynamics Analysis, ANSYS, during the active state of UPS. Compared with Air temperature, Relative humidity, Inner temperature of UPS to be found that condensation is occurring. It’s can be improved by ventilation or insulation effectively inside UPS according to this simulation result.
LINK
http://www.mediafire.com/view/64sm02hh5f7f4ob/A_Study_on_the_Heat_Flow_Inside_UPS_according_to_the_Outside_Temperature.pdf

Short-circuit and selection of electrical equipment Kryuchkov - Короткие замыкания и выбор электрооборудования Крючков И.П.

Short-circuit and selection of electrical equipment Kryuchkov - Короткие замыкания и выбор электрооборудования Крючков И.П.
The methods for calculating short circuits, simple and complex asymmetrical modes in power systems, thermal and electrodynamic effects short circuit currents in the conductors and electrical equipment, methods and techniques for limiting short-circuit currents, especially the calculations of short circuits in the electrical voltage up to 1 kV.
LINK ORIGINAL EN LA WEB FORMATO DJVU
http://mexalib.com/download/35812

LINK ALTERNATIVO FORMATO PDF

A Novel Single-Phase Cascaded Multilevel AC-AC Converter Without Commutation Problem Kim, Sang-hun Department of Electrical Engineering Graduate School, Kyungpook National University Daegu, Korea

Abstract)
 This paper presents a novel cascaded multilevel PWM ac-ac converter that can solve commutation problem. By cascading the single-phase PWM ac-ac converter that uses basic switching cell structure and coupled inductors, the proposed converter does not need to sense the voltage or current polarity for safe commutation. When many unit-cells are cascaded, the proposed converter has more output voltage levels and can obtain high ac output voltage by using low voltage rating switching devices. By applying phase-shifted PWM technique, the proposed converter can reduce output filter size significantly. A 2 kW prototype converter having four unit-cell structure is built and tested to verify the performance. *

LINK
http://www.mediafire.com/view/8p898ucoid8uf3b/CONVERTER_AC-AC-2015.pdf

A VOLTAGE SAG SUPPORTER UTILIZING A PWM-SWITCHED AUTOTRANSFORMER A Thesis Presented to The Academic Faculty by Dong-Myung Lee School of Electrical & Computer Engineering Georgia Institute of Technology Atlanta

INTRODUCTION
1.1 Background A power distribution system is similar to a vast network of rivers. It is important to remove any system faults so that the rest of the power distribution service is not interrupted or damaged. When a fault occurs somewhere in a power distribution system, the voltage is affected throughout the power system. Among various power quality problems, the majority of events are associated with either a voltage sag or a voltage swell, and they often cause serious power interruptions. A voltage sag condition implies that the voltage on one or more phases drops below the specified tolerance for a short period of time. A voltage swell condition occurs when the voltage of one or more phases rises above the specified tolerance for a short period of time. The causes of voltage sags and swells are associated with faults within the power distribution system. Users located a close distance to the fault experience voltage sags much greater in magnitude and duration than users located farther away, and as the power distribution system have power interruptions during a fault because of the effects of a voltage sag or voltage swell produced in the system by the fault. The objective of this research is to develop a novel voltage control scheme that can compensate for voltage sag and swell conditions in three-phase power systems.

LINK
ttp://www.mediafire.com/view/j1wv1l6fu2p57fb/ESTABILIZADOR_AC-KOREA-2015.pdf

Análise de Circuitos Elétricos - Paulo Antonio Mariotto

LINK ORIGINAL EN LA WEB
http://dichavados.blogspot.com.br/2012/01/analise-de-circuitos-eletricos-paulo.html
LINK DIRECTO
https://mega.co.nz/#!cEkWkJrS!hmXVrCCchzl54uJNHnFeBA8CVc01f7uW0QxFYYWj-j0

COBEP 2015 Brazilian Power Electronics Conference - cobep/spec - 2015 FORTALEZA CEARA BRAZIL

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