Análise do balanceamento das tensões do barramento bipolar de uma microrrede CC através de um conversor Cuk

  • Debora Pereira Damasceno Faculdade de Engenharia Elétrica e de Computação Universidade Estadual de Campinas (UNICAMP), Campinas - SP
  • Mateus Pinheiro Dias Faculdade de Engenharia Elétrica e de Computação Universidade Estadual de Campinas (UNICAMP), Campinas - SP
  • João I. Y. Ota Faculdade de Engenharia Elétrica e de Computação Universidade Estadual de Campinas (UNICAMP), Campinas - SP
  • José Antenor Pomilio Faculdade de Engenharia Elétrica e de Computação Universidade Estadual de Campinas (UNICAMP), Campinas - SP
Keywords: Bipolar dc microgrid, dc-dc converter, Neutral line current, Voltage unbalance

Abstract

This paper presents an analysis of the balancing voltage of a bipolar dc microgrid (±190 V) formed by a four-wire three-phase bidirectional PWM rectifier. The rectifier is responsible for guaranteeing the total dc bus voltage (380 V). The balancing of symmetrical voltages is guarranteed by a Cuk voltage-balancing converter that acts equalizing the voltages in case of unbalanced loads. DC-DC converters are connected to the dc buses and aims to adjust the voltage levels for residential or commercial applications. The simulation results show that a voltage balancer is essential to keep the voltage balance of the dc microgrid.
Published
2022-10-19
Section
Articles