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

Study on Management Standards of Total
Harmonics Distortion(THD) measured from UPS
Jeong,Unho
Department of Electrical and Electronic Engineering
Graduate School,Dongshin University
(SupervisorbyProfessor:Ph.D.Kim,Dong-Min)

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 is applied in this paper as
a reference for domestic standards on THD-V limits management.In
recent years,according to integration of KSC standards into IEC,UPS
standards are being revised as KSC IEC 62040,butthere are still no
regulations for THD-V and THD-IaboutUPS causing confusions in
some aspects.
LINK
http://www.mediafire.com/view/1bahx2wgay96n9a/Study_on_Management_Standards_of_Total_Harmonics_Distortion(THD)_measured_from_UPS.pdf

Electronic measurement in nanotechnology and microelectronics Dyakonov V.

Title: Electronic measurement in nanotechnology and microelectronics
Author: Athos AA Dyakonov V.
Publisher: DMK Press
Year: 2011
Pages: 688
Format: PDF
Size: 47.0 MB
ISBN: 50,2
Quality: Excellent

Russia's first monograph on the most advanced electronic and electrical radio measurements and measuring instruments used in research, testing and test equipment and systems, microelectronics and nanotechnology. For the first time in detail the means of measurement applied in a large-scale microelectronic production and instruments leading to their developing and manufacturing firms: Keithley, Tektronix, Agilent Technologies, LeCroy, R & S and others. Particular attention is paid to the analysis and generation of test signals, measurement of their parameters in small and micro time measured by ultra low currents and voltages, impedance analysis and immittance circuits, measurement of static and dynamic characteristics of semiconductor devices and integrated circuits and others. It is the largest survey of contemporary foreign and domestic instruments in the market of Russia and the world. For engineers, scientists, graduate students, teachers and students of universities and technical universities and classical types.
LINK
http://www.mediafire.com/view/80tjucbcmp2mi90/Electronic_measurement_in_nanotechnology_and_microelectronics.pdf

Corto-circuito y selección de equipos eléctricos Kryuchkov IP, Starshinov VA, Gusev YP

Título: Corto-circuito y selección de equipos eléctricos
Autor: Starshinov .
Editorial: MEI
Año: 2012
Páginas: 568
Format: PDF

Corto-circuito y selección de equipos eléctricos - Métodos para el cálculo de cortocircuito, los modos asimétricos simples y complejas en los sistemas de potencia, efectos térmicos y electrodinámicos de las corrientes de cortocircuito en los conductores y dispositivos eléctricos, métodos y formas de limitar las corrientes de cortocircuito, especialmente los cálculos de cortocircuitos en la tensión eléctrica hasta 1 kV.
Instrucciones metódicas para el uso práctico de los dispositivos de protección, así como características de los cálculos de bus rígida de conmutación al aire libre. Un conjunto de programas para el cálculo de corto circuito en un ordenador.
Concebido como un libro de texto para las áreas de formación universitarios 140200 - "Energía Eléctrica" ​​y puede ser utilizado por los expertos, la industria de la energía eléctrica.
LINK
http://www.mediafire.com/view/dil4l6m12w0yno3/Korotkie2012.pdf

COMPENSAÇÃO DA FORMA DE ONDA DE UM INVERSOR PWM UTILIZANDO UMA TÉCNICA DE CONTROLE REPETITIVO Vinícius Cordeiro Durães Araújo Programa de Pós- Graduação em Engenharia Elétrica da Escola de Engenharia da Universidade Federal de Minas Gerais (ENGETRON) BRASIL

COMPENSAÇÃO DA FORMA DE ONDA DE UM INVERSOR PWM
UTILIZANDO UMA TÉCNICA DE CONTROLE REPETITIVO

Vinícius Cordeiro Durães Araújo
Dissertação de Mestrado submetida à Banca Examinadora
designada pelo Colegiado do Programa de Pós-
Graduação em Engenharia Elétrica da Escola de
Engenharia da Universidade Federal de Minas Gerais,
como requisito para obtenção do Título de Mestre em
Engenharia Elétrica.
Orientador: Prof. Porfírio Cabaleiro Cortizo
Belo Horizonte - MG-BRASIL
Universidade Federal de Minas Gerais
Escola de Engenharia
Programa de Pós-Graduação em Engenharia Elétrica

RESUMO
 Os inversores para sistemas UPS devem fornecer uma tensão de saída regulada e com baixo valor de distorção harmônica total (THD - Total harmonic distortion). Este trabalho apresenta um estudo de diversas técnicas de controle para o estágio de saída de um sistema UPS. Foi realizada uma pesquisa bibliográfica de estratégias de controle que contemplam este objetivo. A utilização de uma técnica de controle digital para regular o valor RMS da forma de onda associada com a ação integral repetitiva é avaliada para inversores PWM de baixo custo. Como resultado da ação integral repetitiva, esta estratégia de controle digital reduz o erro de regime permanente e as distorções causada por perturbações periódicas tais como cargas não lineares. Além disso, a técnica de controle digital analisada mede apenas a tensão de saída, reduzindo o custo com SENSORES. O controle repetitivo é uma boa alternativa para as UPS de baixo custo. Ele utiliza a natureza repetitiva das perturbações enquanto os outros métodos não o fazem. O mecanismo de controle é na verdade um controle integral baseado no período fundamental. A tensão de saída é a única variável que deve ser medida, e a ação do controlador principal não precisa ser muito rápida para se alcançar uma forma de onda da tensão de saída com baixa taxa de distorção harmônica total. Apesar de uma resposta sub-cíclica não ser possível, um tempo de assentamento de alguns ciclos do período fundamental é aceitável para muitas aplicações. A Engetron e a excelente equipe do projeto (Mario Henrique, Paulo de Tarso, Wilton Padrão e todos os outros) pelo pleno apoio durante todo o desenvolvimento deste trabalho e incontáveis contribuições
 LINK
http://www.ppgee.ufmg.br/defesas/199M.PDF

Design, Development and Control of >13kV Silicon-Carbide MOSFET based Solid State Transformer(SST) Authors:Wang, Gangyao North Carolina State University

Design, Development and Control of >13 kV Silicon-Carbide MOSFET based Solid
State Transformer (SST) by Gangyao Wang
A dissertation submitted to the Graduate Faculty of North Carolina State University
in partial fulfillment of the requirements for the Degree of Doctor of Philosophy
Electrical Engineering
Raleigh, North Carolina
2013 
ABSTRACT

WANG, GANGYAO. Design, Development and Control of >13 kV Silicon-Carbide MOSFET based Solid State Transformer (SST). (Under the direction of Dr. Alex Huang.)

Within the advent of the smart grid system, the solid state transformer (SST) will replace the traditional 60 Hz transformer formed by silicon steel core and copper windings and provides the interface between the high distribution voltage and low utility voltage. Other than the smaller size and less weight, SST also brings many more functionalities including voltage regulation, reactive power compensation, power management and renewable energy integration. The motivation of this research is to design a solid state transformer based on the wide band-gap Silicon Carbide (SiC) power MOSFETs and compare it with the silicon IGBT based SST. With wider band-gap and higher critical electrical field, the high voltage SiC power device has advantages over silicon power device for both conduction and switching. An extensive study and characterization of the SiC MOSFET was first carried out. It has been found that the MOSFET parasitic capacitors store significant amount of energy and the MOSFET turn on loss is high but turn off loss is virtually zero with small enough turn on gate resistor. A method for estimating the MOSFET parasitic capacitances has been proposed and explained in detail. A PLECS loss simulation model has been developed for the >13 kV SiC MOSFET which has been verified through a boost converter with the SiC MOSFET switches under 40 kHz for both soft switching and hard switching conditions separately.
WEBSITE ORIGINAL
http://repository.lib.ncsu.edu/ir/handle/1840.16/9163
LINK DIRECT
http://repository.lib.ncsu.edu/ir/bitstream/1840.16/9163/1/etd.pdf
LINK ALTERNATIVO
https://copy.com/daXOYRg2bHliBDCU

Smart Home Power Management System using Wireles

Smart Home Power Management System using Wireles

The purpose of the Smart Power Management System(SPMS) is everything necessary to maintain complete comfort in a residential environment, energy and economic costs saving through efficient power measurement and distribution.
Existing Korea energy policies have focused stable and economic power supply. Therefore industry comes up with a social develop through power infra. However it caused the indiscriminate power use. The saving of energy is all-important to our country, which lacks petroleum resources. Also complex and population growth have required the more energy demand because of industrial developments. Our domestic marketing is yet to apply the passive system, self-produced distribution of energy is maintaining ineffectually. In other words, recently to reduce the energy consumption it depends on the self-devices performance and keeps the passive energy management(insulation use etc). In overseas market is developing the active system. In order to apply the active system that needs the intelligent electronics control, smart context-aware monitoring, renewable energy technology of smart grid connection, cloud engine technology based on home network, air conditioning and heating control via environment integration management, remote control technology. To achieve the effective home power management system that requires a lot of tech. The power management system based on home network can contribute the energy life time via efficient energy distribution such as intelligent home management. Through the application of study that prospect the CO2 and energy cost reduction and make comfort residential environment.

Development of 3kW Smart Home Energy Server System Minjae Kim, Ahjin Jung, Daeki Yang, Seokyong Hong, Sewan Choi, Junseok Cho* Seoul National University of Science and Technology,

ABSTRACT
In this paper, the emergency power function with high efficiency, high reliability
3kw power, we propose a smart home energy server systems. When the proposed
Systems are Li-Ion batteries charge and discharge bi-directional converter for solar power
Consists of a one-way converter, two-way grid-connected inverter, presenting the operation mode of the proposed system and of the  prototype power 3kW Test validity was verified through.
LINK
http://pefcl.snut.ac.kr/upload/study04/92ec40dd921c550b0fbdee5ced93f545.pdf

Parallel Operation of Inverters with Seamless transfer for Energy Storage System Jung,AhJin

Parallel Operation of Inverters with Seamless transfer
for Energy Storage System

Jung,AhJin
(SupervisorChoi,SeWan)
Dept.ofControlandInstrumentationEng.
Graduate School Seoul National University of
ScienceandTechnology


Recently,integrating are new able energy source,such as solar energy or
wind power, to distributed generation microgrid is widely developed
nowadays.The cost and efficiency of the system may be taking into
accountas an important consideration.A large powersystem consists of
several parallel inverters which work redundantly,in order to keep the
reliability of the system. In addition, several same capacity parallel
inverters may be operated as modular inverters,that may have lower
operation cost.In modular inverter operation,the load sharing between
inverters must be considered. Furthermore, the transition between
grid-connected and stand-alone mode may causing bad influence to the
critical load.
In this paper,a master-slave control algorithm with seamless transfer
during mode transition of modular parallel inverter as PCS for ESS is
proposed.

FOTOGRAFIAS INAUGURAÇÃO SHOW ROOM EQUIPAMENTOS SMS-LEGRAND-06-11-2014 SAO PAULO BRASIL

LINK ALBUM SHOW ROOM SMS LEGRAND
https://plus.google.com/photos/111424134529259305519/albums/6078754595834403345


PARABENS AO EMPRESA SMS LEGRAND PELA GRANDE INAUGURAÇÃO DE SEU SHOW ROOM DE EQUIPAMENTOS CONDICIONADORES DE ENERGIA ,ESTABILIZADORES,UPS,QUADROS DE DISTRIBUIÇÃO ELETRICOS,INFRAESTRUTURA DE TI,FOI UMA GRANDE ALEGRIA VISITAR APOS MUITO ANOS,EU TIVE A GRANDE SATISFAÇÃO DE SER PARTE DO GRUPO DE ENGENHARIA DE DESENVOLVIMENTO E PESQUISA NO PERIODO DE (1998-2005),TAMBEM VERIFIQUE QUE O PRODUTO SINUS DOBLE LP NO QUAL TIVE A HONRA DE DESENVOLVER JUNTO COM MEU EQUIPE DE ENGENHARIA AINDA ESTA EM LINHA DE PRODUÇÃO,DESEJO MUITOS EXITOS.

Sistema de geração distribuida fontes CA e CC conectado a rede monofasica e controle eletronico da qualidade da energia eletrica Ricardo Quadros Machado : Faculdade de Engenharia Elétrica e de Computação - FEEC-UNICAMP-BRASIL

Título [Principal]: Sistema de geração distribuida fontes CA e CC conectado a rede monofasica e controle eletronico da qualidade da energia eletrica
Título [Outro Idioma]: Distribution generator systems with AC and DC sources connected to a single-hase feeder and electronic control of the power quality
 Autor(es): Ricardo Quadros Machado

Resumo: Resumo: Esta tese apresenta uma nova forma de conexão direta entre um gerador de indução trifásico e uma rede monofásica, situação típica de ambientes rurais, com possibilidade de geração local de energia. O funcionamento do sistema prevê que seja garantida ao usuário local energia elétrica de boa qualidade. Por energia de boa qualidade entende-se: tensões senoidais e equilibradas, freqüência fixa e boa regulação de tensão. Para a rede monofásica, controla-se o fluxo de potência de modo que o fator de potência resultante seja unitário. A obtenção destes comportamentos se dá com o uso de um conversor CC-CA PWM trifásico, conectado em derivação no ponto de acoplamento das cargas locais. Por este conversor flui uma parcela da potência da carga relacionada com desequilíbrios e distorções. A maior parte da potência ativa não precisa ser processada pelo conversor, o que dá a esta solução um rendimento maior do que se obtém com as alternativas de dupla conversão. O sistema completo de geração distribuída pode receber energia, da geração CA (gerador de indução), de uma fonte CC (células a combustível, painéis fotovoltáicos ou bancos de baterias) conectada ao barramento CC do conversor PWM ou da rede monofásica. No caso de alimentação apenas pela rede, tem-se uma estrutura de conversão mono-trifásica interativa com a linha.
LINK
http://www.bibliotecadigital.unicamp.br/document/?code=vtls000343206

Steady State and Dynamic Modeling of the Solar Cell and Evaluation on the Effects of Inverter Ripple Current KIM,WOOK Department of Electrical Engineering Graduate School Soongsil University

Steady State and Dynamic Modeling of  the
Solar Cell and Evaluation on the Effects of
Inverter Ripple Current

KIM,WOOK
Department of Electrical Engineering
Graduate School
Soongsil University
ABSTRACT
In order to develop precise solar cell simulators or design a high
performance photovoltaic generation system, it is important to
accurately understand physical properties of solar cells. But the
steady state model of the solar cell have a non-linear form with
many parameters entangled and conventional methods suggested to
extract the parameters of the solar cell model require some kind of
assumptions, which accompanies the calculation errors, thereby
lowering the accuracy of the model.In the first half of the paper,a
novel method of extracting values of parameters is proposed.The
proposed method deduces characteristic curve of an ideal solar cell
using solar cell equation,and extracting the parameters from the
difference between the ideal and measured I-V curve.
LINK
https://copy.com/JklVLhChfBMQ20yf

QUALIFICAÇÃO E ETIQUETAGEM DE INVERSORES PARA SISTEMAS FOTOVOLTAICOS CONECTADOS À REDE AIMÉ FLEURY DE CARVALHO PINTO NETO Programa de Pós-Graduação em Energia. Universidade de São Paulo. São Paulo, 2012

RESUMO
Pinto Neto, A. F. C. Qualificação e Etiquetagem de Inversores para Sistemas Fotovoltaicos Conectados à Rede. 2012. 141 p. Dissertação de Mestrado. Programa de Pós-Graduação em Energia. Universidade de São Paulo. São Paulo, 2012.
Este trabalho apresenta o desenvolvimento de uma metodologia para a etiquetagem e qualificação de inversores para Sistemas Fotovoltaicos Conectados à Rede, com finalidade de servir de proposta de procedimento para inclusão no Regulamento de Avaliação de Conformidade de Equipamentos e Sistemas Fotovoltaicos do Programa Brasileiro de Etiquetagem. O procedimento desenvolvido avalia os inversores quanto à eficiência, qualidade de energia, proteções e informações operacionais e de instalação.

LINK
http://lsf.iee.usp.br/lsf/pdf/mestrado/Mestrado_Aime_Fleury_Carvalho_Pinto.pdf

INVERSORES MONOFÁSICOS PARA CONEXÃO DE SISTEMAS FOTOVOLTAICOS À REDE FILIPE MARANGONI Universidade Tecnológica Federal do Paraná.

INVERSORES MONOFÁSICOS PARA CONEXÃO DE SISTEMAS
FOTOVOLTAICOS À REDE
FILIPE MARANGONI
Dissertação apresentada como requisito parcial
para obtenção do grau de Mestre em Engenharia
Elétrica, do Programa de Pós-Graduação em
Engenharia Elétrica da Universidade Tecnológica
Federal do Paraná. Área de concentração: Sistemas
e Processamento de Energia.
LINK
http://repositorio.utfpr.edu.br/jspui/bitstream/1/404/1/PB_PPGEE_M_Marangoni,%20Filipe_2012.pdf

A Single-Phase Current Source Solar Inverter with Constant Instantaneous Power, Improved Reliability, and Reduced-Size DC-Link Filter Bush, Craig R. (Author) ARIZONA STATE UNIVERSITY December 2013

A Single-Phase Current Source Solar Inverter with Constant Instantaneous Power, Improved Reliability, and Reduced-Size DC-Link Filter
by Craig R. Bush
A Dissertation Presented in Partial Fulfillment
of the Requirements for the Degree Doctor of Philosophy

Abstract
 This dissertation presents a novel current source converter topology that is primarily intended for single-phase photovoltaic (PV) applications. In comparison with the existing PV inverter technology, the salient features of the proposed topology are: a) the low frequency (double of line frequency) ripple that is common to single-phase inverters is greatly reduced; b) the absence of low frequency ripple enables significantly reduced size pass components to achieve necessary DC-link stiffness and c) improved maximum power point tracking (MPPT) performance is readily achieved due to the tightened current ripple even with reduced-size passive components. The proposed topology does not utilize any electrolytic capacitors. Instead an inductor is used as the DC-link filter and reliable AC film capacitors are utilized for the filter and auxiliary capacitor. The proposed topology has a life expectancy on par with PV panels. The proposed modulation technique can be used for any current source inverter where an unbalanced three-phase operation is desires such as active filters and power controllers. The proposed topology is ready for the next phase of microgrid and power system controllers in that it accepts reactive power commands. This work presents the proposed topology and its working principle supported by with numerical verifications and hardware results. Conclusions and future work are also presented.
LINK ORIGINAL
http://repository.asu.edu/attachments/125815/content/Bush_asu_0010E_13372.pdf

Design of Inverter for LCD TV Backlight with Flat Fluorescent Lamp Jeongwook Hur Department of Electronic and Computer Engineering Graduate School Dankook University

Design of Inverter for LCD TV Backlight
with Flat Fluorescent Lamp

Jeongwook Hur
Department of Electronic and Computer Engineering
Graduate School
Dankook University


The liquid crystal display(LCD) TV market has been growing continuously and cost reduction is one of the biggest issues to increase its market share. The LCD needs backlight because it belongs to non emissive displays. The cold cathode fluorescent lamp (CCFL) and external electrode fluorescent lamp (EEFL) are widely used in backlight system for LCDs. But assembly of CCFL and EEFL backlight system is very complex. The flat fluorescent lamp (FFL) is a newly developed light source and it has a very simple structure. The LCD backlight can have a simple structure if the newly delvelop FFL is used as a light source. The backlight with FFL can be more cost effective than that of the backlights with CCFL or EEFL light sources. But the temperature behaviour of FFL backlights are different from the backlight with CCFL or EEFL light sources, which prohibits FFL backlight from being accepted as the backlight for commercial application.

LINK
https://copy.com/9MlzDr9PydAy1J1G

EMC FILTERING OF THREE-PHASE PWM CONVERTERS MARCELO LOBO HELDWEIN DISSERTATION TO THE ETD ZURICH FOR THE DEGREE OF DOCTOR SCIENCES

LINK
https://copy.com/WKO9nBseYvsrzykM

Comparison of Simulation using PSIM and SIMULINK in Power Electronics Circuits SAMNANG KUONG

DEPARTMENT OF ELECTRICAL AND COMMUNICATION SYSTEM ENGINEERING GRADUATE SCHOOL OF SOONCHUNHYANG UNIVERSITY

ABSTRACT

This thesis proposed the comparison of both simulation softwares PSIM and MATLAB/SIMULINK, implemented on the power electronics circuits. It will be helpful for designers to decide which software is preferable for the analysis of their power electronics circuits. The circuits that invoked to simulation are AC to DC converters(rectifiers), DC-DC converters, DC-AC converters(inverters), and AC-AC converters. The pure resistances and inductances load are used and input power is supplied by the single-phase and three-phase AC or DC voltage source. The comparison is focusing on the differences of output performances between these two simulation softwares, and the results are considered on the output waveforms of circuit which is drawn and simulated on the schematic window of each software; whether the waveforms in each circuit are matched or not. The process of comparison was accomplished on the same condition of both simulation softwares. The explanations and the features of these comparison is included.

A study on the performance of 10kW Grid-Connected Photovoltaic Power Conditioning System with characteristics variation in inductor core materials Lee, Kyoung-Jun

Grid-Connected power conditioning system (PCS) is widely used for distributed generation system. In Grid-Connected PCS, the LC filter is essential to reduce the current harmonics injected to the grid. In this paper adequate inductor core materials are selected to analyze the performance of 10 kW Grid-Connected Photovoltaic (PV) PCS. Core materials can be classified into three groups: power core, sheet core and ferrite core. For the experiment, Fe-3%Si core, Fe-6.5%Si (Super core) and Mega Flux core were chosen as a filter inductor core. Optimal condition for each inductor core is determined by the efficiency and THD.