Open AccessVoltage security in AC microgrids: a power flow‐based approach considering droop‐controlled inverters
Author(s) -
Zambroni de Souza Antonio Carlos,
Santos Marcos,
Castilla Miguel,
Miret Jaume,
García de Vicuña Luis,
Marujo Diogo
Publication year - 2015
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
eISSN - 1752-1424
pISSN - 1752-1416
DOI - 10.1049/iet-rpg.2014.0406
Subject(s) - voltage droop , microgrid , ac power , voltage , control theory (sociology) , power (physics) , margin (machine learning) , computer science , power flow , electric power system , engineering , voltage source , electrical engineering , control (management) , physics , quantum mechanics , artificial intelligence , machine learning
This study deals with the problem of voltage security in microgrids. In general, voltage security is an issue for power systems, where the lack of reactive power is a concern. For microgrids a complexity is imposed, since frequency and voltage level deviations may take place by the operation of droop‐controlled inverters. This study incorporates the load margin calculation into a microgrid structure. For this purpose, a special power flow program is developed in order to consider the effects of the droop‐controlled inverters. Simulation results are obtained with the help of an islanded distribution system with only generators coupled by droop‐controlled inverters, so the proposed methodology may be tested and discussed.