Control for EESS in Three-Phase Microgrids under Time-Domain Reference Frame via PBC Theory
Abstract
This brief presents a general form of designing passivity-based controllers for electrical energy storage systems (EESS) in three-phase microgrids (TP-MGs) under time-domain reference frame. The control strategy proposed in this brief use the Clark's transformation known as αβ reference frame, avoiding to use phase-locked loop systems, which allows improving the dynamical performance in the energy storage devices. Passivity-based control guarantees stable operating conditions in the sense of Lyapunov for each EESS for different grid operation scenarios in the TP-MG. The design of the controllers is made by using passivity-based control (PBC) theory in conjunction to the dynamics of the error approach. A comparison to classical proportional-integral control method is used to show the applicability of the PBC approach presented in this brief. Simulation results are conducted via MATLAB/Simulink software. © 2004-2012 IEEE.
Manuscript received December 7, 2018; accepted January 14, 2019. Date of publication January 18, 2019; date of current version December 6, 2019. This work was supported by the Administrative Department of Science, Technology and Innovation of Colombia (COLCIENCIAS) through the National Scholarship Program under Grant 727-2015. This brief was recommended by Associate Editor D. Giaouris. (Corresponding author: Oscar Danilo Montoya.) O. D. Montoya is with the Program of Electric and Electronic Engineering, Universidad Tecnológica de Bolívar, Cartagena 131001, Colombia (e-mail: o.d.montoyagiraldo@ieee.org).
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