Conservation voltage reduction for autonomous microgrids based on V-I droop characteristics

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Conventional droop characteristics for microgrids have been primarily proposed to achieve proper load sharing between the various distributed generation units. This paper proposes a different perspective for designing autonomousmicrogrids, which aims at reducing the power consumption of the microgrid by utilizing the concept of conservation voltage reduction. The proposed control strategy relies on a voltage-current (V-I) droop characteristic, designed to perform demand side management through voltage control. The effectiveness of the proposed control scheme is demonstrated through time-domain simulation studies considering voltage dependent loads tested over a range of loading conditions and power factors. The performance of the proposed scheme is compared to the conventional and adaptive P-f/Q-V decentralized droop control. Further, a comparison of the transient analysis of the three droop schemes in case of a fault has been evaluated. The proposed V-I droop control scheme can maximize the number of loads being supplied during power shortage.

Original languageBritish English
Article number7812755
Pages (from-to)1076-1085
Number of pages10
JournalIEEE Transactions on Sustainable Energy
Issue number3
StatePublished - Jul 2017


  • Conservation voltage reduction
  • Demand-side management
  • Distributed generation (DG)
  • Droop control
  • Microgrid


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