FUNDAMENTOS DE ANALISE DE CIRCUITOS ELÉTRICOS

LINK
https://www.scribd.com/doc/132129977/Fundamentos-de-Analise-de-Circuitos-Eletricos-David-E-Johnson-John-L-Hilburn-Johnny-R-Johnson

EA-513 Circuitos Elétricos UNIVERSIDADE DE CAMPINAS UNICAMP BRASIL PROFESSOR PHD. RENATO BALDINI

Capítulo 12 Potência em Regime Permanente C.A

WEBSITE DO CURSO COMLETO  EA-513 CIRCUITOS ELÉTRICOS UNICAMP
http://www.decom.fee.unicamp.br/~baldini/EA513.htm
WEBSITE DO PROFESSOR RENATO BALDINI
http://www.decom.fee.unicamp.br/~baldini/

Dynamic Power Flow Control for a Smart Micro-grid by a Power Electronic Transformer JALPA KAUSHIL SHAH FACULTY OF THE GRADUATE SCHOOL OF THE UNIVERSITY OF MINNESOTA

Title Dynamic power flow control for a smart micro-grid by a power electronic transformer
.Autor Shah, Jalpa Kaushil Data 2011-05 Type
Thesis or Dissertation
 Resumo
A novel strategy, for control of the power flow for a smart micro-grid is proposed. The utility grid power is dynamically controlled by a Power Electronic Transformer (PET). A 60 Hz, step-down transformer is generally used at the point of common coupling (PCC), to connect the micro-grid to the power system grid. Substitution of the conventional 60Hz transformer, by a PET, results in enhanced micro-grid power management system, during grid-connected operation. The smart micro-grid is a set of controllable loads and distributed energy resources (DER); both renewable and non-renewable; that supply demand of a group of customers. The proposed dynamic power limiter (also referred to as PET) is a high-frequency, isolated power-converter system, comprised of a highfrequency step-down transformer and three-phase to single-phase matrix converters. The matrix converters are modulated with a novel pulse width modulation (PWM) strategy for a bi-directional power flow control.
LINK FULL THESIS
http://conservancy.umn.edu/bitstream/handle/11299/108278/Shah_umn_0130E_11942.pdf?sequence=1&isAllowed=y

Smart grid, a new source towards a more efficient and prosperous future Hong Ji-hye Korea University Graduate School of International Studies

초록 ( Abstract )
There is a growing agreement around the need we have to solve our problems from challenges like energy or power system security to issues on environment such as climate change by changing our ways that we supply and use energy. While the current power grid has leaded the economic growth over the past century and still works well, our electric infrastructure is rapidly running up against its limitations because the currently existing power grid has been expanded based on the 20th century design requirement which the important matters in contemporary days such as energy efficiency, environmental impacts and consumer choices were not considered at all. So, this is the time to invest for transforming into a more advanced grid system to achieve energy efficiency, good impacts on environment, and consumers’ empowerment. The advanced system which is considered as the most suitable model for a more energy efficient and prosperous future is a smart grid. When we deploy a smart grid, we will be able to realize more efficient, reliable, resilient, secure, responsive, and cleaner electric grid system. Moreover, as it is anticipated, a smart grid will be a driving force creating new business opportunities in energy market, electronic home appliances, automobile, and commercial or residential construction sector. So, both public and private sectors are making investment and promoting various activities to be the early movers in smart grid related areas. But as well as technical problems, we have financial challenges because transforming to a smart grid requires new and expensive investments and commitment by its many stakeholders. So understanding how the value of transforming to a smart grid will be created is an important step in defining the vision. And this is because why carefully designed regulations and standards and the most effective policy measures are required.
목차 ( Index )
1. Introduction 1
2. Need for Energy Efficiency Enhancement 3
2.1 Uncertainty of the Conventional Energy Sources Market 3
2.1.1 Rapidly growing energy demand 3
2.1.2 Supply insecurity 3
2.1.3 The projected energy price volatility 4
2.1.4 The limited reserves 4
2.2 Rising Concerns for the Environment 4
2.3 Sustainable Growth 5
2.4 Steps Forward 5
3. Current Status of the Electricity Sector 7
3.1 Significant Role of Electric Systems 7
3.2 Limited Aspects of Current Grid 7
3.2.1 Reliability 8
3.2.2 Economy 9
3.2.3 Affordability 9
3.2.4 Security 10
3.2.5 Environment 10
3.3 Transition to a Smarter Grid 11
4. Characteristics and Benefits of Smart Grid 13
4.1 The Concept of a Smart Grid 13
4.2 The Scope of a Smart Grid 14
4.2.1 Area, regional and national coordination regimes 14
4.2.2 Distributed energy resource technology 15
4.2.3 Delivery (Transmission and Distribution: T&D) infrastructure 15
4.2.4 Central generation 16
4.2.5 Information networks and finance 16
4.3 Characteristics of a Smart Grid 16
4.3.1 Informed participation by customers 17
4.3.2 Accommodation of all generation and storage options 17
4.3.3 Introduction of new markets, products, and services 18
4.3.4 Provision of power quality for the range of needs 18
4.3.5 Optimization of asset utilization and operating efficiency 19
4.3.6 Resiliency to disturbances, attacks, and natural disasters 19
4.3.7 Anticipation to system disturbances 20
4.4 Benefits of a Smart Grid as an Alternative Model for the Future 20
4.4.1 Advanced market mechanism with empowered consumers 21
4.4.2 Improved efficiency, affordability, and economics 23
4.4.3 Higher reliability 24
4.4.4 Environmental friendliness 25
4.4.5 Better security 26
5. Current Investment and Development Trends 28
5.1 Public Sector in the Republic of Korea and the United States 28
5.1.1 The Republic of Korea 28
5.1.2 The United States 29
5.1.3 Collaborative activities of the two leading countries 30
5.2 Industry Trends 30
5.3 Utilization Cases of Smart Grid Related Technologies 33
5.3.1 Distribution Management System platform by University of Hawaii 33
5.3.2 Perfect Power by Illinois Institute of Technology 34
5.3.3 West Virginia Super Circuit by Allegheny Energy 34
5.3.4 Beach Cities Micro-grid by San Diego Gas and Electric 35
6. Business Opportunities Created by Smart Grid 36
6.1 New Opportunities in Electricity Market Related Sector 36
6.2 New Opportunities in Electronic Home Appliances Sector 39
6.3 New Opportunities in Automobile Sector 40
6.4 New Opportunities in Commercial or Residential Construction Sector 41
7. Challenges Ahead 43
7.1 Technical and Industrial Challenges 43
7.2 Financial and Business Challenges 44
8. Conclusion 46

Circuit Systems with MATLAB and PSpice Por Won Y. Yang,Seung C. Lee

LINK DEMO BOOK GOOGLE
http://books.google.ca/books?id=f_VMjYGBx6IC&lpg=PP1&hl=pt-BR&pg=PP1#v=onepage&q&f=false

TRANSFORMERS AND INDUCTORS FOR POWER ELECTRONICS THEORY, DESIGN AND APPLICATIONS W. G. Hurley National University of Ireland, Galway, Ireland W. H.W€olfle Convertec Ltd, Wexford Ireland

BOOK EXCELLENT
VERSION DEMOSTRATIVA GOOGLE

LINK
https://books.google.com.br/books?id=MtGRBQAAQBAJ&lpg=PR1&hl=pt-BR&pg=PR1#v=onepage&q&f=false

A STUDY OF STEP-DOWN SWITCHNG MODE RECTIFIER AND APPLICATION OF SERIAL-PARALLEL BALANCE CHARGING FOR LI-ION BATTERY ARRAYS- LIN SHU HAN- TATUNG UNIVERSITY

A STUDY OF STEP-DOWN SWITCHNG MODE RECTIFIER AND APPLICATION OF SERIAL-PARALLEL BALANCE CHARGING FOR LI-ION BATTERY ARRAYS- LIN SHU HAN
THESIS FOR MASTER OF SCIENCE DEPARTMENT OF ELECTRICAL ENGINEERING TATUNG UNIVERSITY

LINK THESIS
https://copy.com/mgODBN3A7wCR6vWH

Improved transformer insulation assessment using dielectric response analysis PowerOn TTSC June 2014: Matz Ohlen, Megger

PowerOn TTSC June 2014: Brian Cheung, ABB Ltd

Avoiding Pitfalls in Coordination of Multi-Mode UPS and STS L Giuntini

 Session F1.04 - Avoiding pitfalls in coordination of multi-mode UPS and STS L Giuntini From: PEMD 2014, Session F1: Energy Conversion and Storage, 8 - 10 April 2014, Manchester 08 April 2014 Power channel

1.Introduction
 Uninterruptible Power Supplies (UPS) provide power conditioning and backup for mission critical applications, the typical example being the protection of Information Technology (IT) equipment in data centres installations. In this context, double-conversion is the preferred UPS topology [1], following the superior protection offered by the AC-DCAC conversion. However, the multiple conversion steps limit the efficiency of such topology. Therefore, some doubleconversion UPS have evolved towards Multi-mode operation, where efficiency is maximized by selecting the operating mode depending on the environmental conditions (namely, the power quality of the input mains). Performance of Multimode UPS and compatibility with the typical load requirements have been extensively discussed in [2, 3, 4]. At the same time, applications requiring the highest level of availability may improve their distribution reliability by means of redundancy. Particularly, multiple sources may be tied together by means of Static Transfer Switches (STS). These devices may switch between separate sources whenever the voltage of the active source is sensed as going out of given tolerances, just as in Multi-mode UPS. Therefore, the application of Multi-mode UPS operation and STS protection in the same installation poses significant challenges. This paper addresses the coordination of Multimode UPS and downstream STS by highlighting common pitfalls to be avoided,
2 Multi-mode UPS
Figure 1 depicts a basic block diagram for a doubleconversion
transformer-based UPS

GE Consumer & Industrial SA, Via Cantonale 50,CH-6595 Riazzino, Switzerland, lorenzo.giuntini@ge.com
LINK VIDEO
http://scpro.streamuk.com/uk/player/Default.aspx?wid=19227&ptid=1066&t=0