A novel approach to solve power flow for islanded microgrids using modified Newton Raphson with droop control of DG

Faisal Mumtaz, M. H. Syed, Mohamed Al Hosani, H. H. Zeineldin

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Abstract

The study of power flow analysis for microgrids has gained importance where several methods have been proposed to solve these problems. However, these schemes are complic ated and not easy to implement due to the absence of a slack bus as well as the dependence of the power on frequency as a result of the droop characteristics. This paper proposes simple and e ffec- tive modifications to the conventional method (Newton Raphs on) to compute the power flow for microgrids. The presented metho d provides a simple, easy to implement, and accurate approach to solve the power flow equations for microgrids. The propose d method is applied to two test systems: a 6-bus system and a 38- bus system. The results are compared against simulation result s from PSCAD/EMTDC which validate the effectiveness of the develo ped method. The proposed technique can be easily integrated in current commercially available power system software and c an be applied for power system studies
method is applied to two test systems: a 6-bus system and a 38-bus system. The results are compared against simulation results from PSCAD/EMTDC which validate the effectiveness of the developed method. The proposed technique can be easily integrated in current commercially available power system software and can be applied for power system studies.
Original languageEnglish
Number of pages11
JournalIEEE Transactions on Sustainable Energy
Publication statusAccepted/In press - 17 Nov 2015

Keywords

  • distributed generation
  • islanded microgrids
  • power flow
  • microgrids
  • Newton Raphson

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