CONTROL TOPOLOGIES INVESTIGATION OF PARALLEL INVERTERS BASED ON VIRTUAL IMPEDANCE

Alshireedah A.; Abdumavlonov A.A.; Xusanov J.X.; Kurvonboev B.I.

doi:10.5281/zenodo.7772867

CONTROL TOPOLOGIES INVESTIGATION OF PARALLEL INVERTERS BASED ON VIRTUAL IMPEDANCE

27.03.2023 International Scientific Journal "Science and Innovation". Series A. Volume 2 Issue 3

Alshireedah A., Abdumavlonov A.A., Xusanov J.X., Kurvonboev B.I.

Abstract. While designing Microgrid control, it's important to make sure that each unit is stable situation. To connect distributed generation units with loads and the utility grid, microgrids use inverters. Due to the variety of energy sources high-reliability inverters and converters are required to provide regulated power to customers and facilitate microgrid integration. The modelling, control design, and stability analysis for two various inverter topologies are considered in this paper. This makes the system less stable. The Bode Plot method is used to study the stability of single and double loop voltage controllers. To make the system more stable, it is suggested to use a controller based on virtual impedance. The simulation results are put into MATLAB/Simulink to check that the theoretical analysis is correct and that the proposed controllers work well.

Keywords: microgrid, inverters, virtual impedance, bode plot

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