Open AccessParticipation of distributed resources and responsive loads to voltage unbalance compensation in islanded microgrids
Author(s) -
Sheshyekani Keyhan,
Jendoubi Imen,
Teymuri Mohammad,
Hamzeh Mohsen,
Karimi Houshag,
Bayat Mohammad
Publication year - 2019
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2018.5194
Subject(s) - microgrid , compensation (psychology) , distributed generation , voltage , particle swarm optimization , control theory (sociology) , computer science , energy storage , function (biology) , sensitivity (control systems) , mathematical optimization , control engineering , engineering , electronic engineering , power (physics) , mathematics , electrical engineering , renewable energy , control (management) , algorithm , psychology , physics , quantum mechanics , artificial intelligence , evolutionary biology , psychoanalysis , biology
This study presents a new method for voltage unbalance compensation in islanded microgrids using distributed resources (i.e. distributed generations, storage systems) and responsive loads. The proposed method adopts the Newton trust‐region approach to perform the load flow calculation. The sensitivity coefficients obtained from the load flow solution are incorporated into an optimisation problem whose cost function is defined based on voltage unbalance factor at all microgrid buses. The problem is solved using the particle swarm optimisation method. The results of the optimisation method in the form of correction commands are transmitted to the responsive loads and resources via a communication structure. The responsive resources even those with limited capacity and various types of loads including residential, commercial, and industrial are considered in the presented studies. In order to evaluate the performance of the proposed strategy, two different cases, namely, with and without energy storage devices, are simulated. Simulation results confirm the effectiveness of the proposed method in the voltage unbalance correction of islanded microgrids.