DESIGN AND IMPLEMENTION OF A THREE PHASE GRID CONNECTED SIC SOLAR INVERTER A THESIS SUBMITTED TO THE GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES OF MIDDLE EAST TECHNICAL UNIVERSITY BY MEHMET CANVER

A THESIS SUBMITTED TO THE GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES OF MIDDLE EAST TECHNICAL UNIVERSITY BY MEHMET CANVER

 ABSTRACT

DESIGN AND IMPLEMENTION OF A THREE PHASE GRID CONNECTED SIC SOLAR INVERTER
Canver, Mehmet M.S., Department of Electrical and Electronics Engineering Supervisor: Prof. Dr. Muammer Ermiş September 2018, 111 pages

In this research work a 30 kW grid connected voltage source three-phase inverter with SiC MOSFET module has been designed and implemented, in order to work with a phase-shifted full bridge (PSFB) maximum power point tracker (MPPT) converter, in such a way that these two converters compose a full system solution. The emergence of commercial SiC based power MOSFETs, which have short turnon and turn-off times, has enabled to increase switching frequency as compared to traditional Si based switching components. This circumstance was one the main motives of this thesis in the scopes of increasing the switching frequency, in order to reduce passive component volumes of inverter such as LCL filter and DC link capacitor volume, decreasing losses which leads to reduce the heat sink volume and having better efficiency. Designed and implemented inverter had been operated in the field with PSFB MPPT converter, energized by 23.75 kW total installed capacity solar arrays. Output characteristics had been investigated, and in the grid connected close loop mode various powers up to 22.32 kW had been transferred into grid. Inverter switching characteristics, drain-source voltage, unfiltered line current and zero voltage switching phenomenon were examined with the change of dead time and output line current. Total harmonic distortion had been recorded at various output powers, and a minimum THD value of 3.84% had been obtained at maximum output power of 22.32 kW. Experimental efficiency values was calculated from various recorded input and output powers. 98.55% peak efficiency at half of rated output power and 98% efficiency at peak output power had been obtained.

 Keywords: Three-Phase Grid Connected Inverter, Silicon Carbide, Voltage Source Inverter (VSI), Photovoltaic

LINK:http://etd.lib.metu.edu.tr/upload/12622696/index.pdf

A New Synchronization Technique of a Three-Phase Grid Tied Inverter for Photovoltaic Applications Mohannad JabbarMnati ,Dimitar V. Bozalakov and Alex Van den Bossche1

Figure 1 :The analog circuit of DISM (a) single phase circuit

Figure :The analog circuit of DISM (b) three-phase circuit

A New Synchronization Technique of a Three-Phase Grid Tied Inverter for Photovoltaic Applications Mohannad JabbarMnati ,Dimitar V. Bozalakov and Alex Van den Bossche

 Department of Electronic Technology, Institute of Technology Baghdad, Middle Technical University

 Three-phase grid synchronization is one of the main techniques of the three-phase grid connected power inverters used in photovoltaic systems. This technique was used to reach the fast and accurate three-phase grid tied inverter synchronization. In this paper a new synchronization method is presented on the basis of integrating the grid voltage two times (line-to-line or phase voltage).This method can be called “double integral synchronization method” (DISM) as it integrates the grid voltage signals two times to generate the reference signals of three-phase photovoltaic inverter currents. DISMis designed and simulated in this paper to operate in both analog and digital circuits of three-phase photovoltaic inverter system with the same topology.The digital circuit design and dsPIC33FJ256GP710A as a microcontroller (the dsPIC33FJ256GP710A with the Explorer 16 Development Board from microchip) was used practically in this paper to generate and control the sine pulsewidth modulation (SPWM) technique according to DISM for three-phase photovoltaic inverter system. The main advantage for this method (DISM) is learning how to eliminate the integration constant to generate the reference signals without needing any reference signals or truth table, just the line-to-line or phase voltage of grid.

LINK:https://biblio.ugent.be/publication/8569474/file/8569476.pdf

First Emirati astronaut Hazzaa AlMansoori and team enter ISS, make history for United Arab Emirates

Three space travelers, including NASA astronaut Jessica Meir, Oleg Skripochka of the Russian space agency Roscosmos and spaceflight participant Hazzaa Ali Almansoori from the United Arab Emirates, launched to space at 9:57 a.m. EDT on Wednesday, Sept. 24, 2019, for a nearly six-hour ride to the International Space Station. 

 UAE makes history with the launch of Hazzaa AlMansoori to space. The Soyuz spacecraft carrying him and two other astronauts had blasted off to the International Space Station from Baikonur Cosmodrome in Kazakhstan. The spacecraft successfully docked at ISS in about 6 hours after blast off and the Emirati austronaut and other crew members entered International Space Station. Here's how the events unfolded. AlMansoori is set to participate in the Station's ongoing scientific missions. He'll observe the effect of microgravity and conduct 15 experiments designed by UAE school students, selected from the MBRSC's "Science in Space" competition. Back on Earth, those students will also conduct those same experiments to compare the results with those done in space. And AlMansoori has plenty of material that he'll be taking with him.

Conheça a Telha Solar -A novidade que parou a Intersolar 2019-São Paulo-BRASIL

BAIXE O DATASHEET:
 https://static.wixstatic.com/ugd/b683ff_1138043cc69c4b17bef9116829beb3bf.pdf

TESTES TELHA SOLAR

Você já conhece a Telha Solar?  LANZAMENTO INTERSOLAR 2019 Entre em contato hoje mesmo: contato@l8energy.com  https://www.l8energy.com/
 CONTATO Rua Francisco Munõz Madrid, 625 - Roseira, São José dos Pinhais - PR, 83070-152, Brasil contato@l8energy.com (41) 99221-8897 -   (41) 99221-8897 Exclusivo Whatsapp  (41) 3134-8227 - Suporte Técnico  (41) 3134-8226 -Atendimento Comercial - Região Sul   (41) 3134-8228 - Atendimento Comercial - Regiões Sudeste, Centro-Oeste, Nordeste e Norte

Fórum Potência SÃO PAULO 24 de setembro de 2019 Horário: 8h00 às 18h00 CENTRO DE CONVENÇÕES REBOUÇAS Endereço: Av. Rebouças, 600 Pinheiros – São Paulo (SP)

Fórum Potência SÃO PAULO 24 de setembro de 2019 Horário: 8h00 às 18h00 CENTRO DE CONVENÇÕES REBOUÇAS Endereço: Av. Rebouças, 600 Pinheiros – São Paulo (SP)

 O Fórum Potência é idealizado e dirigido pelo Prof. Hilton Moreno e o Jornalista Marcos Orsolon

Prof. Hilton Moreno 
Engenheiro Eletricista pela Escola Politécnica da Universidade de São Paulo; Diretor da Revista Potência; Membro do Comitê Brasileiro de Eletricidade da ABNT; Professor universitário; Palestrante em congressos, seminários e cursos no Brasil e no exterior; Autor e coautor de várias publicações; consultor de empresas.

Marcos Orsolon
Jornalista pela Universidade São Judas Tadeu; Diretor da Revista Potência; Ex-editor da Revista Anamaco; Ex-editor do Jornal República da Mooca; Ex-editor do Jornal Folha da Capital

 Programa do evento 
08h00 – 08h30: Credenciamento
 08h30 – 09h00: Abertura com participação do Eng. Vinicius Marchese Marinelli, presidente do CREA-SP
 09h00 – 09h30: Conceitos de proteção elétrica e geração fotovoltaica para instalações de baixa tensão | Tiago Dalzochio, especialista da SOPRANO
 09h30 – 10h00: Soluções fotovoltaico | Loris Andreoli e Renan Juliatti, especialistas CHINT
 10h00 – 10h30: Soluções em atendimento e mix de produtos Etil | Julio Cesar Theodoro Junior, especialista da ETIL
 10h30 – 11h15: Intervalo
 11h15 – 11h45: Soluções descentralizadas na indústria de máquinas | Rogério Cantelli, especialista da WEIDMÜELLER CONEXEL
 11h45 – 12h15: Indústria 4.0 na Distribuição de Energia | Pedro Okuhara, especialista da MITSUBISHI ELECTRIC
 12h15 – 12h45: MÚTUA e os benefícios para os profissionais do CREA | Aldo Leopoldo Rosseto Filho, especialista da MÚTUA-SP
 12h45 – 14h00: Intervalo
 14h00 – 14h30: Plataforma BIM / Biblioteca para o Revit | Fábio Itiro Sato, consultor da DUTOTEC 14h30 – 15h00: Manutenção e substituição de Semicondutores de Potência em Inversores e Soft Starters | Rivaldo Caram e Sr. Clóvis Gajo, especialistas da SEMIKRON
 15h00 – 15h30: Solução em segurança e instalação elétrica industrial – seus conceitos, mitos e realidade | Marcos Leandro Oliveira, especialista da TRAMONTINA ELETRIK
 15h30 – 16h15: Intervalo
 16h15 – 16h45: A evolução do uso da imagem térmica | Vitor Unterkicher, especialista da FLIR 16h45 – 17h15: especialista da STECK
 17h15 – 17h45: Regras de ouro para instalação de cabos elétricos em instalações fotovoltaicas | Hilton Moreno, consultor da COBRECOM
 17h45 – 18h15: Vícios e problemas encontrados nas instalações elétricas fotovoltaicas no Brasil | Hilton Moreno, professor, diretor da REVISTA POTÊNCIA, consultor do PROCOBRE 18h15: Sorteio de brindes – encerramento
LINK PARA INSCRIÇÃO GRATUITA
https://revistapotencia.com.br/forum-potencia-sao-paulo-2019/