Estudo de um compensador estático de reativos utilizando conversor multinível em cascata simétrico

Abstract

Due to limitations of power transfer in AC transmission systems, flexibilization concepts have been developed, applying techniques developed from the power electronics. As transmission and distribution systems operate with high voltage values, it is necessary to use some technique to adjust the voltage levels between the supply system and the inverters. The present work presents a multilevel topology applied in the correction of the power factor of a generic power system, so that the converter can be connected to substations or consumer units. In this paper we present the main modulation techniques, the main multilevel topologies available in the literature, and some of the most commonly used reactive compensation methods in the current market. The proposed converter for power factor correction, as well as the description of the converter connection to the network using the D-STATCOM configuration, and the description of the proposed control system applied to the converter.