B000083: mudanças entre as edições

|formOfItem=o 

|data=$a Desing of a three-phase t-type interleaved converter $h [ recurso eletrônico ] / $c Ícaro de Almeida Albuquerque ; orientador, Telles Brunelli Lazzarin ; coorientador, Gierri Waltrich

|data=$a Abstract: This work proposes a three-phase T-Type interleaved converter employing interphase transformers as a solution for applications requiring bidirectional AC-DC converters, such as microgrids and electric vehicle chargers. In this scenario, the converter is analytically characterized for any number of interleaved modules. The analysis introduces a numerical model to assess the converter’s switched common mode and circulating currents, which is validated through comparison with simulation software. Regarding the design of the converter, an optimal method is proposed to minimize losses in switching devices and magnetic elements. The algorithm is based on Particle Swarm Optimization (PSO) and returns the constructive parameters of the magnetic elements for a given operational condition. Therefore, for an application of 10 kW in a 220 V / 60 Hz mains, the proposed method was employed, and the resulting magnetic elements were built and validated through experimental testing. The converter’s efficiency was evaluated for different modulation schemes, obtaining 98% efficiency over the rated power range. Concerning the control strategy, an average dynamic model was proposed, considering the dynamics of the Phase-Locked Loop (PLL) based on the SRF-PLL, and all proposed control loops, resulting in a complete closed-loop model of the converter. The model was utilized for controller tuning and preliminary assessment of the converter’s stability. The proposed control strategy’s validation was performed in simulation software. The analysis of the T-Type interleaved converter concludes that this converter can feature multilevel characteristics by employing the interleaving of three-level modules, resulting in high efficiency and potentially compact designs.