PCIM SOUTH AMERICA 2014 INTERNATIONAL CONFERENCE AND EXIBITION FOR POWER ELECTRONICS,INTELLIGENT MOTION,RENEWABLE ENERGY AND ENERGY MANAGEMENT

Design and Implementation of a Fuzzy Adaptive Sliding-Mode Voltage Control System for Three-Phase UPS Inverter Khawar Naheem DIVISION OF ELECTRONIC AND ELECTRICAL ENGINEERING DONGGUK UNIVERSITY SEOUL

 ( Abstract )
Nowadays, the nonlinear nature of electric loads leads to a strong demand of a high-quality and reliable power source both by the customers and utilities. To address this issue, the uninterruptible power supplies (UPSs) are extensively employed for the critical loads such as communication systems (i.e., data centers), medical support systems, semiconductor manufacturing systems, etc. For improving the power quality using UPS system, it is important to achieve the sinusoidal output voltage waveform with very low total harmonic distortion (THD) regardless of the load types. Typically, the inverter with LC output filter in the UPS system is a suitable solution to fulfill this requirement. The main criteria to evaluate the regulation performance of the UPS inverter output voltage are fast dynamic response, small steady-state error, and low THD. Furthermore, the various load conditions (abrupt load changes, unbalanced load, and nonlinear load) including parameters uncertainties extremely degrade the performance of the UPS inverter. Thus, an appropriate control strategy is desired to sufficiently meet the performance criteria of the UPS systems under any type of electrical loads and uncertainties.
LINK
http://www.mediafire.com/view/wg9c9ogcdtpdz46/FUZZY_INVERTER.pdf

Robust Control of a Grid Connected 3 Phase 2 Level Photo Voltaic Inverter and Development of an Inverter Operating SW Using Test Driven Development Approach Ahn, Kyung Pil

Robust Control of a Grid Connected 3 Phase 2 Level Photo
Voltaic Inverter and Development of an Inverter Operating
SW Using Test Driven Development Approach

Ahn, Kyung Pil
(Supervisor Lee, Young Il)
Dept. of Control and Instrumentation Eng.
Graduate School of Industry and Engineering
Seoul National University of Science and Technology

This study discusses robust control of grid connected three-phase two-level photo voltaic inverter where LC filter is used and its reliable implementation method for the system.
The suggested control method uses the cascaded strategy in which inner-loop controller for the ac current control and outer-loop controller for the dc-link voltage are used. In the inner-loop ac current controller, it is important to maximize convergence rate and keep the stability at the same time. So the optimal controller design method based on the LMI (Linear Matrix Inequality) is used with the integration action. Though this method, it can achieve high performance in term of tracking the reference as well as eliminate the offset-error. More over it guarantees system stability even when there are parameter mismatch by considering the parameter uncertainty set. In the outer-loop dc-link controller the PI controller is used with the dc-ac current linearization. So it can have concurrent performance though overall inverter operating condition.
On the other hand, the high power product such as three-phase photo voltaic inverter is in the mission-critical area due to its riskness of an accident. More over the photo voltaic inverter system become more an more complex with increasing requirement of functions in the grid connection rule for each country. With these trend it is difficult to keep the system integrity. This study shows the cases how the inverter operating SW can be builded using Test Driven Development (TDD) approach.
LINK
http://www.mediafire.com/view/bd7kt3oq2d6n34g/CONTROL_INVERTER_PHOTOVOLTAIC.pdf

AUTOMAÇÃO DO CICLO DE CARGA PARA BATERIAS SERGIO FEGER DA EATON (ALEMANHA)

PCIM SOUTH AMERICA SÃO PAULO 14-15 OCTOBER 2014 International Conference and Exhibition for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management

MAIOR INFORMAÇÃO LINK
http://www.mesago.de/en/SAPCIM/The_conference/sapcim/index.htm

PARTICIPAÇÃO EM 3º. Diálogo Brasil-Alemanha de Ciência, Pesquisa e Inovação SÃO PAULO BRASIL-30 SETEMBRO-01 OUTUBRO 2014

O dia 01 de Outubre de 2014 ,se realizou com  muito exito ou 3° Diálogo Brasil-Alemanha de Ciência,Pesquisa e Inovação,Dando sequência ao primeiro dia do evento, no qual foi apresentada uma “Leibniz Lecture” pelo matemático Günter Ziegler, nesta quarta-feira foram  apresentados dois painéis: Dynamical Phenomena in Complex Networks, que abordararom a investigação de fenômenos da natureza, como climáticos ou neurológicos, a partir de sua interpretação através de sistemas complexos interdisciplinares e; Equações para uma Matemática Atraente, que discutiu inovações no ensino da disciplina na educação básica e a influência de sua didática em outras disciplinas, bem como a necessidade do estímulo à formação de profissionais para que seja suprida a escassez de mão de obra nas chamadas áreas MINT (matemática, informática, ciências naturais e tecnologia). 

O Diálogo Brasil-Alemanha de Ciência, Pesquisa e Inovação é um evento organizado pelo Centro Alemão de Ciência e Inovação São Paulo (DWIH-SP). A presente edição tem como tema principal a Matemática.

Foi para mim como Engenheiro Eletrônico muito grato,intercambiar ideas com grandes cientistas do Brasil e Alemanha,as Matemáticas estão em toda área de nossa Sociedade,desde o pronostico do tempo,na Bolsa de valores,na Engenharia Aeroespacial,BioEngenharia,Nanotecnologia,Modelos Matematicos do Transporte Urbano,Estudo de probabilidade de terremotos e Sequias,meus parabens ao DWIH-SP pela excelente organização e escolha,e muito importante que as Empresas apoiem esta serie de eventos porque pode gerar transferencias de tecnologias e conhecimentos.

German House of Science and Innovation São Paulo (DWIH)
http://www.dwih.com.br/

Smart Engineering für Smart Grids Der Umbruch im Energiemarkt verlangt intelligenteres Engineering

FABRICAÇAO DE TRANSFORMADORES ELETRICOS MANAUS

PARTE1 PARTE2 PARTE3

High Frequency High Power Converters for Industrial Applications Pooya Davari M.Sc, B.Eng (Electrical Engineering) Queensland University of Technology

High Frequency High Power Converters for Industrial Applications 
A Thesis by Publication submitted in Partial Fulfilment of the Requirement for the Degree of Doctor of Philosophy Pooya Davari M.Sc, B.Eng (Electrical Engineering)
 Science and Engineering Faculty School of Electrical Engineering and Computer Science Queensland University of Technology Queensland, Australia
 Abstract 
High power converters have found their way into many industries. Variety of industries processes have increased their requirements in power level, economy of scale, efficiency, new control method, new topologies and using new technologies (like new semiconductors). The incentive to move to higher frequencies is not only given by the reduced sizes of the passive components, magnetic core losses, but also the application demands. It is thus clear that much can be gained from moving to a design that enables operation at very high frequency. Hence in the recent years, high frequency high power converters have been one of the most active areas in research. In this PhD research project high power converters have been considered, regarding to their power level, as two categories of high instantaneous and high average power converters. High frequency high instantaneous power converters mostly known as pulsed power supplies are studied as the main aspect of this research, and high frequency high average power converters are investigated with the specific intention on high power piezoelectric transducer applications as the second aspect.
LINK
http://eprints.qut.edu.au/62896/1/Pooya_Davari_Thesis.pdf

Low & Medium Voltage Transformer