Comparative Analysis of Vienna Interleaved Three-Phase Power Factor Correction Rectifier over other Ultra-Efficient Topologies

This paper presents a novel ultra efficient three-phase interleaved buck-type unity power factor rectifier, named the Vienna Interleaved rectifier. This topology is based on the well-known Vienna rectifier, which is a single-stage topology, while the proposed rectifier is based on the two-stage topology, which employs the so-called interleaving strategy. The interleaved topologies has some good advantages over the single - stage ones and this is demonstrated by comparing the Vienna Interleaved rectifier with the conventional Vienna rectifier, which claims an efficiency over 96% [1]. The idea of this study has started from the supposition that a two-stage topology of the Vienna rectifier will, for sure provide a higher efficiency value than the single-stage Vienna rectifier. The supposition was right and this paper is highlighting the idea that the Vienna Interleaved rectifier it is, indeed, among the ultra-efficient PFC rectifiers. This statement is supported by the comparison of the losses, obtained by simulation of the Vienna Interleaved rectifier and of another two PFC topologies employing the same interleaved strategy, named the Swiss Interleaved rectifier, respectively, the 6-Switch Interleaved rectifier.