Institute of Energy and Environment of the University of São Paulo-BRAZIL

 

Institute of Energy and Environment of the University of São Paulo-BRAZIL- The Institute of Energy and Environment of the University of São Paulo, formerly known as the Institute of Electrotechnics and Energy (IEE),[1] [2] is a specialized unit of the University of São Paulo, created by State Decree 11.684 of December 11, 1940 and inaugurated on April 25, 1941, whose activities are focused on research, teaching and university extension in the areas of energy and environmental science. The Electrical Machines Laboratory of the IEE-USP performs tests to evaluate the performance of motors, generators, transformers and electrical energy conditioning systems, in their most varied forms of construction, use or type. Energy and Environment Institute of the University of São Paulo (USP)-University of São Paulo-BRAZIL The Energy and Environment Institute of the University of São Paulo, formerly known as the Institute of Electrical Engineering and Energy (IEE),[1] [2] is a specialized unit of the University of São Paulo, created by State Decree 11.684 of December 11, 1940 and inaugurated on April 25, 1941, whose activities are focused on research, teaching and university extension in the areas of energy and environmental science. The Electrical Machines Laboratory of the IEE-USP performs tests to evaluate the performance of motors, generators, transformers and electrical energy conditioning systems, in their most varied forms of construction, use or type. The largest Institute of Energy, Electrical Engineering, Electronic Engineering, Photovoltaic Energy, Renewable Energies, and Biomass in South America.

An Effective Solution for Regeneration Protection in Uninterruptible Power Supply-Jinghang Lu, Member, IEEE, Josep M Guerrero, Fellow, IEEE, Mehdi Savaghebi, Senior Member, IEEE, Amer M.Y.M.Ghias, Member IEEE, Yajuan Guan, Member, IEEE, Xiaochao Hou, Student Member, IEEE, Juan C. Vasquez, Senior Member, IEEE

 An Effective Solution for Regeneration Protection in Uninterruptible Power Supply 

Abstract – In this paper, a regeneration protection solution is proposed to address the DC-link overvoltage issue and the unequal power sharing in the parallel Uninterruptible Power Supply (UPS) systems. First, a DC-link Voltage Protection (DCVP) control strategy is proposed to protect the inverter against the excessive DC-link voltage that may trigger the protection mechanism of the UPS system. In addition, an active power sharing control strategy by regulating the virtual resistance is proposed to solve the circulating current caused by UPS regeneration issue. Finally, the feasibility of the proposed regeneration protection solution is verified by experimental results from the parallel UPS system prototype.

VIEW FULL PAPER:

 https://portal.findresearcher.sdu.dk/files/170700480/An_Effective_Solution_for_Regeneration_Protection_in_Uninterruptible_Power_Supply_002_.pdf

Instituto de Energia e Ambiente da USP-Universidade de São Paulo-BRASIL

 

  

 

O Instituto de Energia e Ambiente da Universidade de São Paulo, anteriormente denominado Instituto de Eletrotécnica e Energia (IEE),[1] [2]é uma unidade especializada da Universidade de São Paulo, criado pelo Decreto Estadual 11.684 de 11 de dezembro de 1940 e inaugurado em 25 de abril de 1941, cujas atividades são voltadas à pesquisa, ao ensino e à extensão universitária nos âmbitos da energia e ciência ambiental.

SEAL SUMMIT 2025-SÃO PAULO-21 DE MAIO 2025-Ana Claudia Plihal Head do LinkedIn Brasil

 

 

SEAL SUMMIT 2025-SÃO PAULO-21 DE MAIO 2025-Ana Claudia Plihal Head do LinkedIn Brasil

 SOBRE O EVENTO 

O principal evento de inovação e tecnologia do Brasil | Em formato data-marcante! No dia 20 de Maio, o SeaL Summit 2023 reunirá em São Paulo/SP os maiores líderes de varejo, indústria e logística para explorar as tendências que estão transformando o mercado. Um dia inteiro de insights, cases de sucesso e networking com quem faz a diferença no mercado.

ZVS/ZCS MĚNIČ PRO INDUKČNÍ OHŘEV- ZVS/ZCS CONVERTER FOR INDUCTION HEATING- BAKALÁŘSKÁ PRÁCE BACHELOR'S THESIS AUTOR PRÁCE AUTHOR Jan Gadas-BRNO UNIVERSITY OF TECHNOLOGY FAKULTA ELEKTROTECHNIKY

 ABSTRACT 

The bachelor thesis deals with the design of high-frequency inverters with low-loss switching applied as an induction heater. Four known inverter topologies are presented in the thesis. The aim of the thesis is to select a suitable topology on which the induction heating will be implemented according to the theoretical knowledge found and subsequent simulations. The result of the semester thesis is a functional low-power model of an induction heater implemented on a PCB. The result of the bachelor thesis is high-power model of an induction heater for industrial use. Functionality tests and comparison of measured data with simulations are performed for both. For industrial induction heater, a melting test was performed with analysis of element content on spectrum analyzers to demonstrate use.

VIEW FULL THESIS: https://theses.cz/id/by3kth/BP_Gadas_final.pdf