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Sistema de Teste para Subestação Elétrica CPC 100

Sistema de Teste para Subestação Elétrica – CPC 100

O CPC-100 fornece mais de 800 A (ou 2000 A com amplificador de corrente), e 2000 V. Inclui um PC integrado. A rotina do software testa grande parte dos equipamentos da subestação, criando automaticamente relatórios configuráveis. O design compacto (29 Kg/ 64 lbs) e o software inovador poupam tempo de teste, com geração automática de relatórios e minimizam o custo de transporte.

Aliado ao CPC-100, o CP TD1 permite realizar testes automatizados de Capacitância, Fator de Potência e Tangente Delta, para avaliação das condições do isolamento com 12 KV e variando a freqüência de 15 a 400 Hz.

O CPC 100 + CP TD1 é ideal para a realização de testes primários, testes de manutenção em campo, com variação de frequência de 15 A 400 Hz nos seguintes equipamentos:
•Transformadores de Potência
•Transformadores de Corrente
•Transformadores de Potencial
•Chaves
•Cabos
•Máquinas Rotativas

Solid-State-Transformers: Key Components of Future Traction and Smart Grid Systems Johann W. Kolar Gabriel Ortiz Power Electronic Systems Laboratory, ETH Zurich, Switzerland

Solid-State-Transformers: Key Components of Future Traction and Smart Grid Systems Johann W. Kolar Gabriel Ortiz Power Electronic Systems Laboratory, ETH Zurich, Switzerland Enertronics GmbH, Switzerland Email: ortiz@lem.ee.ethz.ch
 Abstract —The efficient supply of electric power relies strongly on the selection of suitable voltage levels for different sections of the energy distribution system. When higher levels of power are required, a medium-voltage level in the tens of kilovolts range is typically selected. In accordance to current trends in energy conversion, the supply of power must fulfil several functionality requirements among which high power-quality and access to a low-voltage DC interface can be highlighted. Moreover, low energy losses, high power-density, low failure rate and low total cost of ownership remain as major research challenges. Solid-state-transformers (SSTs) comply with these functionality requirements as well as with the demanded high performance levels while directly connecting to medium-voltage.
SOURCE ORIGINAL
https://www.pes.ee.ethz.ch/uploads/tx_ethpublications/4_Solid-State-Transformers_Ortiz_IPEC14.pdf

A Study on Optimization of Compact High-voltage Generator Based on Magnetic-core Tesla Transformer Young-Kyung Jeong*, Dong-Gi Youn** and Moon-Qee Lee†

Abstract – This paper presents a compact and portable high-voltage generator based on magneticcore
Tesla transformer for driving an UWB high power electromagnetic source. In order to optimize
the performance of the high-voltage generator, a novel open-loop cylindrical magnetic-core adopting
the quad-division lamination structure is proposed and manufactured. The designed high-voltage
generator using the proposed magnetic core has a battery-powered operation and compact size of 280
mm × 150 mm in length and diameter, respectively. The high-voltage generator can produce a voltage
pulse waveform with peak amplitude of 450 kV, a rise time of 1.5 ns, and pulse duration of 2.5 ns at
the 800 V input voltage.
† Corresponding Author: Dept. of Electrical and Computer Engineering,
University of Seoul, Korea. (mqlee@uos.ac.kr)
* Replex Co., Ltd., Korea and Dept. of Electrical and Computer
Engineering, University of Seoul, Korea. (ykj@replex.co.kr)
** Replex Co., Ltd., Korea. (admin@replex.co.kr)
Received: September 5, 2013; Accepted: January 9, 2014
 Full paper (PDF) 26-09-035_1349.pdf

Battery Charging System for PHEV and EV using Single Phase AC/DC PWM Buck Converter Jung-Hyo Lee*, Doo-Yong Jung*, Sang-HoonPark**, Taek-Kie Lee***, Young-Ryul Kim§ and Chung-Yuen Won

1. Introduction
There has been active research to develop environmentally friendly products due to the recent increase in the oil prices and the reinforcement of strict environmental regulations worldwide. In particular, in order to develop environmentally friendly vehicles, there is active research in the automotive industry, which utilizes an immense amount of oil resources, on the drive system using electric motors and power-conversion systems that may potentially replace the conventional internal combustion engine [1, 2]. PHEV(Plug-in Hybrid Electric Vehicle), NEV(Neighborhood Electric Vehicle) and the general EV(Electric Vehicle) are examples of the new ecological vehicles. Such vehicles use electricity as its auxiliary and main power source, and battery is used as the energy source to drive their electric motors.
 Journal of Electrical Engineering & Technology Vol. 7, No. 5, pp. 736~744, 2012
http://dx.doi.org/10.5370/JEET.2012.7.5.736
 Corresponding Author: Dept. of Electrical Engineering, Sungkyunkwan
Univerity, Korea. (woncy@skku.edu)
* Dept. of Electrical Engineering, Sungkyunkwan Univerity, Korea.
(daumin@naver.com)

LINK  https://www.mediafire.com/?6tsg166mmcmofcf

Electric Machines Por D. P. Kothari,I. J. Nagrath

Análise da Resposta Dielétrica com DIRANA

Métodos de resposta dielétrica permitem a análise direta da isolação sólida de transformadores. Eles também podem ser utilizados para avaliação de buchas e das propriedades da isolação de motores, geradores, e cabos com isolação de papel impregnado em óleo.

Multi-physics Analysis for Temperature Rise Prediction of Power Transformer

 

Multi-physics Analysis for Temperature Rise Prediction of Power Transformer Hyun-Mo Ahn*, Joong-Kyoung Kim**, Yeon-Ho Oh***, Ki-Dong Song***and Sung-Chin Hahn

Abstract – In this paper, a method for multi-physics analysis of the temperature-dependent properties of an oil-immersed transformer is discussed. To couple thermal fields with electromagnetic and fluid fields, an algorithm employing a user defined function (UDF) is proposed. Using electromagnetic analysis, electric power loss dependent on temperature rise is calculated; these are used as input data for multi-physics analysis in order to predict the temperature rise. A heat transfer coefficient is applied only at the outermost boundary between transformer and the atmosphere in order to reduce the analysis region. To verify the validity of the proposed method, the predicted temperature rises in high-voltage (HV) and low-voltage (LV) windings and radiators were compared with the experimental values.
† Corresponding Author: Dept. of Electrical Engineering, Dong-A University, Korea .(schahn@dau.ac.kr)
* Dept. of Electrical Engineering, Dong-A University, Korea. (hmahn @donga.ac.kr)
** R&D Center, Power & Industrial System Performance Group, HYOSUNG Corporation, Korea .(jkkim1976@hyosung.com)
*** Power Apparatus Research Center, HVDC Research Division, Korea Electrotechnology Research Institute, Korea. (yhoh@keri. re.kr)
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http://www.koreascience.or.kr/search/articlepdf_ocean.jsp?url=http://ocean.kisti.re.kr/downfile/volume/kiee/E1EEFQ/2014/v9n1/E1EEFQ_2014_v9n1_114.pdf

Integrated Operation of Power Conversion Module for DC Distribution System HEE-JUN LEE College of Information and Communication Eng. Sungkyunkwan University

 

Abstract - It is DC power that Output of renewable energy being recently developed and researched. Also, demand of DC power will expect to proliferate due to increase of digital load. Thus, DC distribution system providing high quality of power and reliability has emerged as a new distribution system. If the conventional distribution systems are substituted by proposed DC distribution system, the output of renewable energy can be connected with distribution systems under minimum power conversion. Therefore, in the event of connection with DC load, it can construct an efficient distribution system. In this paper, the integrated parallel operation of power conversion module for DC distribution system is proposed. Also, this paper proposed modularization of power conversion devices for DC distribution system and power control for parallel operation of large capacity system. DC distribution system consists of three power conversion modules such as AC/DC power conversion module 2 set, ESS module 1 set. DC distribution system controls suitable operation depending on the status of the DC power distribution system and load. Integrated operation of these systems is verified by simulation and experiment results.

Integrated Operation of Power Conversion Module for DC Distribution System Lee, Hee-Jun ; Shin, Soo-Choel ; Hong, Suk-Jin ; Won, Chung-Yuen ; The Transactions of the Korean Institute of Power Electronics, volume 19, issue 3, 2014, Pages 240-248

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Power Quality Improvement by Using Multipulse AC-DC Converters for Varying Loads B.Suresh Kumar International Journal of Scientific Engineering and Technology 2014

International Journal of Scientific Engineering and Technology (ISSN : 2277-1581) Volume No.3 Issue No.2, pp : 78 - 84 1 Feb 2014 Power Quality Improvement by Using Multipulse AC-DC Converters for Varying Loads B.Suresh Kumar Asst.Professor,EEE dept,CBIT-Hyderabad
FULL PAPER
http://ijset.com/ijset/publication/v3s2/IJSET_2014_201.pdf

Multipulse AC–DC Converters for Improving Power Quality: A Review Bhim Singh,Sanjay Gairola

Bhim Singh, Senior Member, IEEE, Sanjay Gairola, Brij N. Singh, Member, IEEE, Ambrish Chandra, Senior Member, IEEE, and Kamal Al-Haddad, Fellow, IEEE
Abstract—Three-phase multipulse ac–dc converters (MPC) are developed for improving power quality to reduce harmonics in ac mains and ripples in dc output. This paper deals with the multipulse ac–dc converter configurations, state of art, their performance, power quality aspects, components selection considerations, latest trends, future developments, and potential applications. It is targeted to provide broad perspective on multipulse converter technology to the researchers, engineers, and designers dealing with them. A classified list of more than 250 research publications on the subject is also given for quick reference.

Ensaio Retificador trifásico Nominal ENG. LUIZ DANIEL SANTOS BEZERRA INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO CEARÁ BRASIL

Automatic voltage regulator based on series voltage compensation with ac chopper C.-Y. Park1 J.-M. Kwon2 B.-H. Kwon Department of Electronics and Electrical Engineering, Pohang University of Science and Technology

Automatic voltage regulator based on series voltage compensation with ac chopper
C.-Y. Park1 J.-M. Kwon2 B.-H. Kwon1 1
Department of Electronics and Electrical Engineering, Pohang University of Science and Technology 2Department of Electrical Engineering, Hanbat National University, Daejeon, Republic of Korea E-mail: jmkwon@hanbat.ac.kr
Abstract: This study proposes an automatic voltage regulator (AVR) based on series voltage compensation with an ac chopper. The proposed AVR is made up of a pulse-width-modulated (PWM) ac chopper and a transformer for series voltage compensation. In the ac chopper, the commutation problem is solved by switching patterns. The ac chopper provides direct ac–ac power conversion without energy storage elements, so the size and cost of the AVR are reduced. The ac chopper compensates for only the required voltage, so the switches have reduced ratings and stresses. Using bypass switches, the proposed AVR can compensate not only for the voltage sag but also for the voltage swell of the input voltage. Experimental results verify that the proposed AVR quickly compensates for the voltage sag and swell of the input voltage.

Advanced Control of Three-Phase Four-Wire Inverters using Feedback Linearization under Unbalanced and Nonlinear Load Conditions Vo, Nguyen Qui Tu ; Lee, Dong-Choon ; Dept. of Electrical Eng., Yeungnam University KOREA -AUGUST 2013

Advanced Control of Three-Phase Four-Wire Inverters using Feedback
Linearization under Unbalanced and Nonlinear Load Conditions
Nguyen Qui Tu Vo1, and Dong-Choon Lee
Dept. of Electrical Eng., Yeungnam University-KOREA
 Journal title : The Transactions of the Korean Institute of Power Electronics
Volume 18, Issue ,4,  2013, pp.333-341
Publisher : The Korean Institute of Power Electronics
Abstract - In this paper, a feedback linearization control is proposed to regulate the output voltages of a three-phase four-wire inverter under the unbalanced and nonlinear load conditions. First, the nonlinear model of system including the output LC filters is derived in the d-q-0 synchronous reference frame. Then, the system is linearized by the multi-input multi-output feedback linearization. The tracking controllers for d-q-0-components of three-phase line-to-neutral load voltages are designed by linear control theory. The experimental results have shown that the proposed control method gives the good performance in response to the load conditions.
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http://www.koreascience.or.kr/search/articlepdf_ocean.jsp?url=http://ocean.kisti.re.kr/downfile/volume/kipe/JRJJC3/2013/v18n4/JRJJC3_2013_v18n4_333.pdf

Design of Robust Voltage Controller for Single-phase UPS Inverter Ku, Dae-Kwan ; Ji, Jun-Keun ; Cha, Guee-Soo ; Moon, Jun-Hee ; The Korean Institute of Power Electronics

A Study on the Wireless Parallel Operation of a Single-phase UPS

Journal title : The Transactions of the Korean Institute of Power Electronics
Volume 16, Issue ,4,  2011, pp.317-325
Publisher : The Korean Institute of Power Electronics
Design of Robust Voltage Controller for Single-phase UPS Inverter
Ku, Dae-Kwan ; Ji, Jun-Keun ; Cha, Guee-Soo ; Moon, Jun-Hee

Abstract
In this paper a robust voltage controller for a single-phase UPS inverter is newly presented. The voltage controller is designed using -based robust control scheme to simultaneously guarantee robust stability and robust tracking performance in the presence of load variations. Firstly the robust performance of the resulting controller is theoretically confirmed via -analysis. Then simulations and experiments for the single-phase inverter system with linear and nonlinear loads demonstrate feasibility of the proposed control method providing improved performance - good regulation and fast dynamic response.

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http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=JRJJC3_2011_v16n4_317

Programa de simulación de circuitos Micro-Cap. Versión 9, 10 [. Pdf-ZIP ] Autores: M.A.Amelina, S.A.Amelin. Libro de texto. Edición electrónica.

Programa de simulación de circuitos Micro-Cap. Versión 9, 10 [. Pdf-ZIP ] Autores: M.A.Amelina, S.A.Amelin. Libro de texto. Edición electrónica.
 Resumen editor: La técnica de modelado de dispositivos electrónicos utilizando el programa v.9.x Micro-Cap, firme v.10.x Spectrum Software (http://www.spectrum-soft.com/). Una breve digresión, que muestra las principales características del programa son ejemplos de modelado de diferentes clases de dispositivos electrónicos y, a continuación, se proporciona información básica detallada sobre el uso de Micro-Cap.
LINK
https://www.mediafire.com/?49cg83jqa99i2k7

Amantys describes their latest smart gate drivers at PCIM 2014

Carregador de Baterias sem Contacto para Alimentação de Equipamento Electrónico de Transmissão de Dados André Brandão Martins UNIVERSIDADE TECNICA DE LISBOA

Mestrado Integrado em Engenharia Electrotécnica e de Computadores UNIVERSIDADE TECNICA DE LISBOA Dissertação
Detalhes Aluno: André Brandão Martins (ist154485)
Título: Carregador de Baterias sem Contacto para Alimentação de Equipamento Electrónico de Transmissão de Dados
Resumo:
No âmbito desta dissertação pretende-se analisar e dimensionar um Conversor Ressonante Série CC-CC a utilizar como Carregador de Baterias sem Contacto para Equipamentos Electrónicos de Transmissão de Dados (6 VCC ? 1A). Algumas características do equipamento electrónico, em particular as suas dimensões, impõem uma distância máxima de 20mm entre os enrolamentos primário e o enrolamento secundário do transformador. De forma a definir o tipo de núcleo e o tipo de enrolamento a utilizar, foi realizada a caracterização experimental de diferentes transformadores com baixo acoplamento magnético. Considerando o baixo valor do factor de acoplamento magnético que este tipo de Sistemas de Transmissão de Energia apresenta, e o consequente impacto no rendimento, foi dimensionado e estudado um protótipo, através da simulação e teste de várias topologias de conversores e transformadores, a diversas distâncias, com o intuito de obter uma solução que apresentasse melhor desempenho. Projectou-se um conversor ressonante série e procedeu-se à simulação do seu funcionamento, utilizando diferentes parâmetros: impedância característica, afastamento entre primário e secundário e carga. Para validação dos modelos teóricos e de simulação construiu-se um inversor em meia-ponte com uma malha de compensação ressonante série, a operar à frequência de 100kHz, a partir do qual se obtiveram os resultados experimentais.

Publicação

Carregador de Baterias sem Contacto para Alimentação de Equipamento Electrónico de Transmissão de Dados, André Brandão Martins, 2011,

( Resumo alargado 361KB Tese 4,4MB)
Obra sujeita a Direitos de Autor

Understanding EMC Basics 2: Waveforms, Spectra, Coupling, Overview of E...

Modular DC/DC Converter for DC Distribution and Collection Networks THÈSE NO 5430 (2012) ÉCOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE FACULTÉ DES SCIENCES ET TECHNIQUES DE L'INGÉNIEUR LABORATOIRE D'ÉLECTRONIQUE INDUSTRIELLE PROGRAMME DOCTORAL EN ENERGIE Suisse 2012 PAR Stephan Kenzelmann

Modular DC/DC Converter for DC Distribution and Collection Networks
THÈSE NO 5430 (2012) AUTHOR Stephan Kenzelmann
ÉCOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE PRÉSENTÉE le 13 juillet 2012 À LA FACULTÉ DES SCIENCES ET TECHNIQUES DE L'INGÉNIEUR LABORATOIRE D'ÉLECTRONIQUE INDUSTRIELLE PROGRAMME DOCTORAL EN ENERGIE ÉCOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE
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http://infoscience.epfl.ch/record/180231/files/EPFL_TH5430.pdf