Principles of International Marketing-PART1-Professor Sean Watts, Korea's Harvard- Yonsei University

This is a video related to Professor Sean Watts’ teaching. Content includes international marketing, international management, cross cultural differences, social media, social media analytics, digital marketing, Managing customers and businesses in a digital world, digital excellence, big data, data analytics, informational systems, online education, etc. Professor Watts is a North American (Cdn) with over 20 years’ experience helping American organizations and another 20 years’ experience working in Asia, now based in Vietnam at RMIT International University in Ho Chi Minh City. Previously Professor Watts was Chair of Business and Economics at EIC, Yonsei University – the “Harvard” of Korea. –Oct. 27, 2016

Sean can be contacted at : https://www.facebook.com/wattssean

A Study on the Transient Operation Algorithm of 30kW Micro-grid based on CVCF Inverter Hu Dong, Lee Department of Electronic and Electrical Engineering The Graduate School Korea University of Technology and Education

A Study on the Transient Operation Algorithm of 30kW Micro-grid based on CVCF Inverter Hu Dong, Lee Department of Electronic and Electrical Engineering The Graduate School Korea University of Technology and Education
ABSTRACT
The phenomenon of energy sinking can be occurred if the output of renewable energy sources is larger than customer loads. In this case, voltage of CVCF battery could be increased rapidly according to the condition of SOC(State of Charge) and blackout could be occurred due to shut-down of CVCF inverter, at carbon free island micro-grid based on the CVCF(Constant Voltage & Constant Frequency) inverter. In order to overcome these problems, this paper proposes a transient operation algorithm in CVCF based micro-grid which in advance prevents shut-down of CVCF inverter during the energy sinking. And also this paper proposes the modeling of 30kW micro-grid including CVCF inverter, PV system, customer load using PSCAD/EMTDC S/W and implements test device of 30kW micro-grid. From the results of 30kW micro-grid modeling and test device based on the proposed algorithm, it is confirmed that CVCF based micro-grid can properly prevent shut-down of CVCF inverter according to SOC and battery voltage of CVCF inverter when energy sinking is occurred.
 Keyword : Carbon free island Micro-grid, CVCF inverter, Energy sinking, Transient operation
LINK:https://www.mediafire.com/file/aakhn6edjiqxuuq/A_Study_on_the_Transient_Operation_Algorithm_of_30kW_Micro-grid_based_on_CVCF_Inverter.pdf/file

UNIFIED POWER QUALITY CONDITIONER: DESIGN, SIMULATION AND EXPERIMENTAL ANALYSIS PhD THESIS-Ahmet TEKE DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING ÇUKUROVA UNIVERSITY

UNIFIED POWER QUALITY CONDITIONER: DESIGN, SIMULATION AND EXPERIMENTAL ANALYSIS PhD THESIS-Ahmet TEKE DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING ÇUKUROVA UNIVERSITY 

 ABSTRACT
 Power quality (PQ) problem can be defined as the deviations of the voltage and/or current from the nominal sine wave. PQ problems generally concern with voltage sags/swells and harmonic currents. Custom Power (CP) devices that mitigate these power quality problems have gained more attention in the recent decades. Unified Power Quality Conditioner (UPQC) is one of the CP devices and it mitigates both load current and supply voltage problems, simultaneously. In this study, UPQC and a new topology of UPQC namely OPEN UPQC are designed, modeled and setup experimentally to mitigate voltage sag/swells and harmonic currents. UPQC consists of Dynamic Voltage Restorer (DVR) and Active Power Filter (APF). An improved voltage compensation controller and new sag/swell detection method based on Enhanced Phase Locked Loop (E-PLL) are presented for DVR. Traditional Instantaneous Reactive Power Theory (IRPT) is optimized for APF control algorithm to compensate harmonic load current under unbalanced and distorted supply voltages. Digital Signal Processor based 6 kVA, 230Vline-lineUPQC and OPEN UPQC prototypes have been developed for laboratory tests. UPQC and OPEN UPQC with proposed controller algorithms effectively compensates the sag/swell in supply voltage by keeping the load voltage amplitude at 0.9-1 per unit and eliminates the load current harmonics by keeping supply current at 5%

Key Words: Unified Power Quality Conditioner, OPEN UPQC, Custom Power, Active
Power Filter, Dynamic Voltage Restorer.
LINK: https://www.mediafire.com/file/wtcckymm7e4qn7i/8411-CONDICIONADOR_POTENCIA.pdf/file

PROJETO E CONSTRUÇÃO DE UM CONVERSOR MONOFÁSICO EM PONTE H MULTICELULAR ENTRELAÇADO PARA GERAÇÃO FOTOVOLTAICA E EÓLICA DE PEQUENO PORTE-GEOVANE LUCIANO DOS REIS-UNIVERSIDADE FEDERAL DE MINAS GERAIS

PROJETO E CONSTRUÇÃO DE UM CONVERSOR MONOFÁSICO EM PONTE H MULTICELULAR ENTRELAÇADO PARA GERAÇÃO FOTOVOLTAICA E EÓLICA DE PEQUENO PORTE-GEOVANE LUCIANO DOS REIS-UNIVERSIDADE FEDERAL DE MINAS GERAIS PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA

 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
 RESUMO
 A demanda por energia elétrica tem aumentado nos últimos anos, além da busca por novas fontes de energia para atender esse crescimento de forma não poluente e sustentável. Assim, as energias renováveis como a fotovoltaica e a eólica, tem ganhado posição de destaque no cenário energético mundial. O proposito deste trabalho é apresentar o projeto, construção e comissionamento de um conversor monofásico híbrido em ponte H multicelular entrelaçado para geração fotovoltaica e eólica de pequeno porte, com potência nominal de 11,7 kW. O sistema é composto por: i) dois arranjos fotovoltaicos de 5,1 kW cada que tem sua potência rastreada através de dois conversores Boost entrelaçados; ii) uma turbina eólica com gerador de imã permanente com potência de 1,5 kW, cuja potência é extraída através de um terceiro conversor Boost. A interface entre a geração e a rede elétrica é realizada por um inversor VSI entrelaçado de quatro braços via um ICT. O trabalho de dissertação apresenta os principais conceitos da geração fotovoltaica e eólica, modelagem dos principais elementos do sistema e as técnicas utilizadas para o controle e rastreamento da máxima potência do sistema. Por fim os resultados simulados e experimentais para o sistema desenvolvido são apresentados e discutidos. Palavras-chave: Geração distribuída, conversor híbrido, MPPT, energia eólica, energia fotovoltaica.
LINK:  https://www.ppgee.ufmg.br/defesas/1389M.PDF

BRAZILIAN POWER ELECTRONICS CONFERENCE 2013 Hotel Serra Azul - Gramado-RS-BRASIL

About COBEP
 The main objectives of COBEP (Brazilian Power Electronics Conference) are to promote a forum to discuss research, development, applications, new trends, and latest advances in Power Electronics and Electrical Machine Control. The event is open for the whole community, but it mainly targets specialists in Power Electronics, Electrical Drives, and Machine Control. Researchers, engineers, businessmen, and engineering students are encouraged to participate in COBEP.
 COBEP has technical co-sponsor from the IEEE (The Institute of Electrical and Electronics Engineers), through a cooperation agreement with PELS (Power Electronics Society), allowing its internationalization and increasing its divulgation. It is a bi-annual event that is organized every odd year by one or more Universities, Research Groups or Institutes from various regions of Brazil. COBEP 2013 is organized by the Federal University of Santa Maria (UFSM), and will take place in the touristic town in the southern Brazilian state of Rio Grande do Sul, Gramado, from 27 to 31 October 2013. Currently, COBEP is the national meeting of Brazilian researchers of Power Electronics and Applications. The organizers are expecting and welcoming increasing participation from the international scientific community, to further strengthen this consolidated forum of advanced technical discussions.