Due to reduced installation costs, abundance of solar resource, environmental appeal and simplicity of installation, the photovoltaic solar energy use is rising. In Brazil, the installed capacity in 2021 reached 10,429 MW, ...

This work presents a tool for the automation of space-vector PWM technique in static converters, directly applied to multi-dimensional vector spaces. The strategy permits an automatic choice of a group of voltage space ...

Currently, with the increase of the complexity of digital circuits and the decreasing size of transistor, the digital circuits are more susceptible to faults. To obtain more practicality in estimatation, precisely, of ...

The power transformer is the most important equipment in a substation and guarantees its integrity, reliability and permanence of its operation. Possible failures in power transformers cause inconvenience to companies and ...

In the context of database systems, both the development and the maintenance are process that dictates changings in its models. These changings have consequences in the entire system. The physic, logic and conceptual models ...

This paper presents four universal active power filter topologies for reactive power and harmonic compensation without series isolation transformer by using one (configuration 1 and 3) and two (configuration 2 and 4) ...

In this work, a low-cost processing system for electrocardiogram signals was developed from an active analog filter module. This system allows to attenuate interferences that modify the electrical signal from the human ...