Techie World | Digital World

At a time when fossil fuels are becoming scarce and ecological awareness is promoting clean and renewable energies, power electronics is once again on the forefront. The power electronics industry is forced to produce more converters, with increased performance and lower cost. These performances are in the direction of better performance and increased power density. Applications require operations of environments considered severe in ambient temperature, vibration, and chemical aggression, but always indiscretion. Power electronics is one of the branches of electrical engineering, it relates to devices or converters that can change the shape of electrical energy. Since the eighties, it has found many applications, from the improvement of the characteristics of networks supporting heavy industries (SVC - Static VAR Compensator) like aluminum factories, to FACTS (Flexible Alternative Current Transmission Systems). For network stability and HVDC (High Voltage Direct Current) syste

In a simple way, we define power electronics as a science dedicated to the study and development of static electricity converters, such as frequency inverters, rectifiers and DC-DC converters, aiming at maximum efficiency and quality in the transformation processes of electric energy, reducing the number of losses and interferences in energy conversion processes, as well as technologies linked to clean energy sources such as photovoltaic and wind power. The emergence of power electronics and drives provided an alternative that brought advantages for power processing, thanks to the little need for maintenance of the semiconductor switches and along with low power loss in switching.  Power electronics came in around and for a few decades, there was little evolution, because the technology of switching devices available at the time was expensive, very bulky and unreliable. With the invention of the thyristor, began the great technological growth of Power Electronics. During this