Análise do avanço da utilização de corrente contínua na transmissão de energia elétrica.

Abstract

Power transmission using direct current is gaining more space and proving to be the best solution for numerous projects involving large amounts of energy transferred or long distances. This paper deals with the development of High Voltage Direct Current (HVDC) transmission technology from its introduction to the market today. The comparison between HVDC and High Voltage Alternating Current (HVDC) systems is the focus of the research. Such confrontation is accomplished by presenting the advantages and disadvantages of using each system in different situations. In addition, the detail of the converter topologies currently used in HVDC systems is presented. In this sense, the main direct current transmission projects in Brazil and worldwide are exposed. Finally, it is concluded that HVDC technology is a promising system for contributing to low-loss electricity supply and increasing renewable energy matrix.