Analog Electronic Circuits-Prof. Jeong, Deog-Kyoon-Electrical and Computer Engineering-SEOUL NATIONAL UNIVERSITY

LINK
http://ocw.snu.ac.kr/node/27126

MODELAGEM DE CONVERSORES CC-CC EMPREGANDO MODELO MÉDIO EM ESPAÇO DE ESTADOS Autor: Prof. Ivo Barbi-INEP – Instituto de Eletrônica de Potência UFSC – Universidade Federal de Santa Catarina -BRASIL

MODELAGEM DE CONVERSORES CC-CC EMPREGANDO MODELO MÉDIO EM ESPAÇO DE ESTADOS Autor: Prof. Ivo Barbi 

DOWNLOAD DO LIVRO: AQUI :http://ivobarbi.com/novo/wp-content/plugins/download-monitor/download.php?id=159

 SUMÁRIO: Capa Cap. I – Análise de Circuitos Lineares Cap. II – Circuito RC Chaveado Cap. III – Circuito RC Chaveado Cap. IV – Conversor CC-CC Abaixador a Capacitor Chaveado Cap. V – Circuito RL Chaveado Cap. VI – Circuito LLR Chaveado Cap. VII – Circuito LC Chaveado Cap. VIII – Circuito VLR Chaveado Cap. IX – Modelagem do Conversor Buck Cap. X – Modelagem do Conversor Boost Cap. XI – Modelagem do Conversor Buck-Boost Cap. XII – Circuito Equivalente do Conversor CC-CC Bidirecional em Regime Permanente Cap. XIII – Modelagem do Conversor Bidirecional Zeta-Sepic Cap. XIV – Modelagem do Conversor Boost em Condução Descontínua Cap. XV – Conversor CC-CC Meia Ponte Modulado em Frequência Cap. XVI – Análise do Erro Cometido ao se Empregar o Valor Médio Em Espaço de Estados Referências Bibliográficas

LINK ORIGINAL
http://ivobarbi.com/modelagem-de-conversores-cc-cc/

CONVERSOR CC-CC DE ALTO GANHO OBTIDO PELA COMBINAÇÃO ENTRE REDES DE INDUTOR E DE CAPACITOR CHAVEADOS Marcos A. Salvador, Thamires P. Horn, Telles B. Lazzarin, Roberto F. Coelho Universidade Federal de Santa Catarina - UFSC, Instituto de Eletrônica de Potência – INEP

CONVERSOR CC-CC DE ALTO GANHO OBTIDO PELA COMBINAÇÃO ENTRE REDES DE INDUTOR E DE CAPACITOR CHAVEADOS

Marcos A. Salvador, Thamires P. Horn, Telles B. Lazzarin, Roberto F. Coelho Universidade Federal de Santa Catarina - UFSC, Instituto de Eletrônica de Potência – INEP, Florianópolis – SC, Brasil

  Resumo – Este artigo apresenta um conversor CC-CC elevador não isolado, obtido a partir da combinação de uma rede ativa de indutores chaveados com uma rede passiva de capacitores chaveados. O conversor proposto pode alcançar ganhos de tensão elevados (>10) e caracteriza-se por apresentar reduzido número de componentes e baixos esforços de tensão nos interruptores. O artigo apresenta o princípio de operação do conversor em modo de condução contínua e descontínua, suas principais formas de onda, equacionamento considerando parâmetros parasitas e análise comparativa com outros conversores de similar ganho, previamente publicados na literatura. A validação experimental do conversor proposto é alcançada por meio de um protótipo com potência nominal de 200 W, tensão de entrada de 20 V, tensão de saída de 260 V, frequência de comutação de 50 kHz e rendimento nominal de 94,27%.
Palavras-Chave – Capacitor Chaveado, Conversor CC-CC Elevador de Alto Ganho, Indutor Chaveado.
LINK
https://www.sobraep.org.br/site/uploads/2018/06/rvol23no2p13.pdf

Control and Design of a High voltage Solid State Transformer and its Integration with Renewable Energy Resources and Microgrid System by Xu She -Faculty of North Carolina State University

Control and Design of a High voltage Solid State Transformer and its Integration with Renewable Energy Resources and Microgrid System

by Xu She

 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 Electric Engineering-2013 

 BIOGRAPHY Xu She was born in Hunan, China. He received the B.S. degree in electrical engineering (major) and B.A. degree in English (minor), with honor from Huazhong University of Science and Technology, China, in 2007. He received his M.S. degree majored in power electronics and motor drive with honor from the same university in 2009. He started to pursue his Ph.D. degree in North Carolina State University in 2009. From August 2009 to July 2010, he has been working on the modeling of the green energy hub and DC microgrid project. Since August 2010, he has been working on the solid state transformer project. He was the team leader of Solid State Transformer (SST) group and Medium Voltage DC (MVDC) transmission group at Future Renewable Electric Energy Delivery and Management (FREEDM) Systems Center. From May to August 2012, he was an intern with high power conversion systems laboratory at GE global research center, US, conducting research on next generation high voltage dc transmission (HVDC) system. His research interests are high power/voltage converters and their industrial applications, and renewable energy resources integration. His role in the first job will be a research engineer (lead professional career band) in high power conversion systems laboratory at GE global research center.

 Chapter

 1 Introduction

1.1 The distribution transformer 1.1.1 Introduction of the distribution transformer Power generation, transmission, and distribution are the three main constituents of the modern power system, in which the transformer plays a most critical role [1]. Transformers enable high efficiency and long distance power transmission by boosting the voltage to a higher one in the generation side with the so called power transformer. In the distribution system side, this high voltage is stepped down for industrial, commercial, and residential use with the so called distribution transformer. The distribution transformer provides final voltage transformation to the end users in the distribution system, which usually with voltage level less than 34.5kV at high voltage side. At the low voltage side, 120/240V split single phase system and 480V three phase systems are usually adopted in the US. The distribution transformer can be classified from different perspective of view. According to the phase number, it can be classified into three phase transformer and single phase transformer. According to the installation method, it can be classified into pole mounted transformer and pad mounted transformer. The pad mounted transformers are installed for the distribution system with lines located at ground level or underground. While the pole mounted transformers are mounted on a utility pole. According to the insulation medium, it can be classified into liquid-immersed transformer and dry type transformer. The distribution transformers are widely used in various applications, such as renewable energy resources integration, high power charge station, traction system, reactive power compensator, active power filter, and etc., as shown in Figure 1-1[2][3]. It functions as a passive interface between the distribution system and the low voltage loads/sources. Therefore, the voltage quality of the grid cannot be guaranteed if no additionally devices are installed.

LINK:
https://repository.lib.ncsu.edu/bitstream/handle/1840.16/9027/etd.pdf?sequence=1&isAllowed=y

Development of DC to Single-phase AC Voltage Source Inverter with Active Power Decoupling Based on Flying Capacitor DC/DC Converter-Hiroki Watanabe, Tomokazu Sakuraba, Keita Furukawa-2018

Development of DC to Single-phase AC Voltage Source Inverter with Active Power Decoupling Based on Flying Capacitor DC/DC Converter-Hiroki Watanabe, Tomokazu Sakuraba, Keita Furukawa

Abstract—In the present, an power decoupling method without additional component is proposed for a DC to Single-phase AC converter, which consists of a flying capacitor DC/DC converter (FCC) and the voltage source inverter (VSI). In particular, a small flying capacitor in the FCC is used for both a boost operation and a double-line-frequency power ripple reduction. Thus, the DC link capacitor value can be minimized in order to avoid the use of a large electrolytic capacitor. In addition, component design, of e.g., the boost inductor and the flying capacitor, is clarified when the proposed control is applied. Experiments were carried out using a 1.5-kW prototype in order to verify the validity of the proposed control. The experimental results revealed that the use of the proposed control reduced the DC link voltage ripple by 74.5%, and the total harmonic distortion (THD) of the inverter output current was less than 5%. Moreover, a maximum system efficiency of 95.4% was achieved at a load of 1.1 kW. Finally, the high power density design is evaluated by the Pareto front optimization. The power densities of three power decoupling topologies, such as a boost topology, a buck topology, and the proposed topology are compared. As a result, the proposed topology achieves the highest power density (5.3kW/dm3) among the topologies considered herein.

 Index Terms—Photovoltaic system (PV), Flying capacitor DC/DC converter, Active power decoupling, Power density design

LINK:http://itohserver01.nagaokaut.ac.jp/itohlab/paper/2018/20180301_IEEE_TPEL/watanabe.pdf