Modelagem e controle de um elo HVDC utilizando conversores Multiníveis Modulares.

Abstract

High voltage direct current (HVDC) transmission systems have gained prominence due to their advantages over conventional alternating current systems. This is true especially in the transmission of bulk energy over long distances and the interconnection of asynchronous electrical systems. The first HVDC system was built in 1954 and since then the technology used in these systems has undergone several improvements, accompanying technological advances of power electronics devices. In recent years, modular multilevel (MMC) converters have been introduced as having several advantages over previous topologies. In this context, the main objective of this internship is the modeling and implementation of MMC type converters as well as the development of a control system for the converters when they form an HVDC link. For that, the RSCAD electromagnetic transient simulation program was used. The results obtained were satisfactory and demonstrated that the implemented system behaves according to results reported in the literature.