Projeto e aplicação de indutores planares em conversores eletrônicos

Abstract

The high efficiency provided by static converters makes them competitive and widely used in the energy conversion, being applied from the energy generation until the final consumer. Some of these applications require high power density, requiring reduced volume and weight. Power converters have reactive elements that are required for their operation. Among other components in a power converter, inductors, capacitors, and transformers are the heaviest and the bulkier. Aiming to increase power density by replacing conventional inductors with air core planar inductors, a design methodology is proposed, searching for optimized inductance values through finite element method simulations. Simulations and experiments using planar elements with analog filter and electronic converter circuits are performed for the theory and the project consolidation. The characteristics of these devices are observed, comparing them with the ferrite-core consolidated inductors.