A Generic Power Flow Algorithm for Unbalanced Islanded Hybrid AC/DC Microgrids
- 1:05PM Dec 02, 2020
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Evangelos E. Pompodakis, Georgios C. Kryonidis, Charis S. Demoulias, Minas C. Alexiadis: ‘A Generic Power Flow Algorithm for Unbalanced Islanded Hybrid AC/DC Microgrids’ in IEEE Transactions on Power Systems, 2020
This paper proposes a precise power flow algorithm for islanded hybrid AC/DC microgrids (HMGs). In our analysis, we have considered a multi-grounded unbalanced bipolar DC microgrid and a multi-grounded four-wire AC microgrid connected through one or more interlinking converters (ICs). The proposed method is based on the implicit ZBUS method, presenting fast convergence and robustness regardless of the R/X ratio of the lines. It can be applied in all network configurations including highly meshed distribution systems. Numerical simulations are conducted in a 12-Bus and a 47-Bus islanded unbalanced HMG to verify the validity of the proposed power flow approach considering several distributed generator (DG) operational modes.
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