SECOND ORDER SLIDING MODE CONTROL FOR ISLANDED AC MICROGRIDS WITH RENEWABLE POWER RESOURCES
COMMANDE À MODE GLISSANT DE DEUXIÈME ORDRE POUR LES MICRO-RÉSEAUX CA ILOTÉS AVEC RESSOURCES ÉNERGÉTIQUES RENOUVELABLES
DOI:
https://doi.org/10.59277/RRST-EE.2024.1.7Keywords:
Microgrid (MG), Master-slave strategyAbstract
Microgrids have attracted a lot of attention and are the future power systems. This paper proposes a new control scheme for islanded AC microgrid (MG) using master-slave technique. Stability and high performance are vital for islanded MG. Two second order sliding mode controls (SMCs) are designed in stationary reference frame for master and slave units to control the voltage and powers respectively. Both designed controls guarantee the convergence of considered outputs to their reference values. The proposed controls are robust, simple, chattering free and only need local measurements. The control method proposed in this paper can be easily extended to microgrids with any number of slave units and parallel connected inverters. The effectiveness of the proposed control scheme is verified through simulation results in SIMULINK/MATLAB environment and compared to feedback linearization control and a modified conventional SMC.
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