• Performance improvement of the droop control for single-phase inverters 

      Azevedo, Gustavo M.S.; Calvancanti, M; Neves, F.; Rodríguez Cortés, Pedro; Rocabert Delgado, Joan (2011)
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      The droop control uses the local average values of the active and reactive power components for sharing the load power demand among inverters in parallel. In this paper, a method that uses a virtual quadrature reference ...
    • Safe transient operation of microgrids based on master-slave configuration 

      Azevedo, Gustavo M.S.; Bradaschia, F.; Calvancanti, M; Neves, F.; Rodríguez Cortés, Pedro; Rocabert Delgado, Joan (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
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      Master-Slave configuration is a suitable alternative to droop control method used in microgrids. In this configuration, only one inverter is the master, while the others are slaves. The slave inverters are always current ...
    • Voltage quality improvement of microgrids under islanding mode 

      Azevedo, Gustavo; Rodríguez Cortés, Pedro; Rocabert Delgado, Joan; Calvancanti, M; Neves, F (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
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      This paper proposes a control strategy to reduce the voltage unbalance in microgrids. The voltage unbalance compensation is achieved by injection of a proper negativesequence current into the microgrid. This task can ...