Desenvolvimento de ferramentas para o cálculo de perdas em conversores estáticos: controle de conversores estáticos com a plataforma dSPACE

Abstract

High efficiency equipment is strongly valued, once such feature is, commonly, crucial to choose certain product, by its added value on quality. High efficiency UPS equipment, or no-break, represents significant energy cost savings, mainly those in double conversion (on-line) configuration, which act uninterruptedly at heavy power rate. That said, to identify project parameters, that impacts not only on equipment quality performance, but also on its efficiency, is extremely useful improving the applied technology. The present essay evaluates in an analytical mode the principles of power losses in UPS, approaching both elements with substantial share on efficiency detriment: semiconductor devices and passive filter components. Aiming the development of tools, to calculate power losses in such parts carried out in simulation environment. In order to enable configurations identification and project criteria, facilitating equipment development, to enhance its performance and efficiency. To characterize the UPS (its converters and passive components) a model of the system was elaborated on the simulated environment, aiming also its control via hardware, on the perspective to implement it experimentally in full-bridge configuration inverter. For that purpose, it was employed the dSPACE Platform, such a tool allows fast prototyping of a static converter, among others, controlled in a real-time application. A review is presented, considering its resources and features (PWM and A/D Converter), oriented to the desired implementation, also to facilitate its operation in future work.