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Nonlinear droop control for minimum power losses operation in islanded microgrids

  • Autori: Tran, Q.; Shehadeh, H.; E. Riva, S.; Favuzza, S.; Di Silvestre, M.
  • Anno di pubblicazione: 2017
  • Tipologia: Contributo in atti di convegno pubblicato in volume
  • OA Link:


In this work, a modified primary regulation technique is proposed to control one of the inverter interfaced units feeding an islanded microgrid. The proposed approach employs an off-line minimum losses Optimal Power Flow, OPF, to extract a lookup table for the composition of the droop curve. Simulations prove that generators reach an operating point that corresponds to a minimum loss operation for the relevant power flow distribution. Since OPF has been implemented with frequency and voltage dependent models, the results of the modified droop are stable and also energy efficient. Further studies will address further analysis on systems showing different R/X ratio and modeling of more generators using the modified droop control.