3 documents found, page 1 of 1
Novel incremental conductance feedback method with integral compensator for max...
André, Sérgio; Silva, Fernando; Pinto, Sónia; Miguens Matutino, PedroResearch on renewable energy sources and power electronic converters has been increasing due to environmental concerns. Many countries have established targets to decrease CO2 emissions and boost the proportion of renewable energy, with solar power being a prominent area of investigation in the recent literature. Techniques are being developed to optimize the energy recovered from PV cells and increase system e...
Powerless sensor for non-intrusive multi-fiber traffic monitoring
Serrador, António; André, SérgioThe rapid expansion of fiber optic networks and services, which sees a large number of circuits enabled and disabled each day, introduces a significant complexity for operators to identify fibers that have and do not have attached clients. The service level agreements prevent operators from disconnecting circuits without absolute assurance that no clients are attached. We propose a non-intrusive multichannel fi...
Design of single phase SiC bidirectional DC-AC converter with low-cost PLL for ...
Bento, Alexandre; André, Sérgio; Luís, Ricardo; Silva, J. FernandoThe paper presents the design stages of a single-phase Silicon Carbide bidirectional DC-AC converter. This includes the LCL filter design responsible to meet grid connection requirements. A 3kW laboratory prototype of the power converter is built employing a low-cost phase locked loop and its results are presented. The design of the low-cost phase locked loop and its implementation are depicted in some detail.