Com o apoio RAADRI. ; Fault diagnosis in PFC rectifiers is becoming more and more important in many industrial applications. PFC rectifiers allow high power factor operation in AC/DC conversion. This power converter is normally the first interface between the ac power system network and the electronic equipment. In this way a good diagnosis system can avoid unplanned standstill. Under this context, this work p...
Com o apoio RAADRI. ; A system controller for a three-phase gridconnected inverter for photovoltaic applications is presented. The active and reactive currents will both be controlled in order to realize active power supply and reactive power compensation. The three-phase inverter will be controlled by a fast and robust sliding mode controller. The active and reactive current references will be calculated in o...
2010
2010
2010
Na sequência deste texto realiza-se uma abordagem sobre a situação de manejo de cada um dos principais insetos-praga dos dois sistemas de produção de arroz no Brasil, indicando as atuais falhas, estratégias de controle mais recomendáveis e demandas de pesquisa e de transferência de tecnologia. Apresenta-se ainda a estrutura de um projeto de pesquisa, recentemente elaborado, que enfoca o desenvolvimento de siste...
2009
2009
2009
Hydrogen is a valuable alternative for long-term energy storage, particularly for renewable energy based stand-alone systems. The described stand-alone system has been developed and installed at the INETI facilities. The exceeding renewable energy (provided by sun and wind) is used to generate hydrogen, which accumulated as an energy buffer, while the fuel cell uses this stored hydrogen to produce electrical en...
Financiadores do RCAAP | |||||||
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |