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A distributed architecture of parallel buck-boost converters and cascaded control of DC microgrids-real time implementation

ملخص البحث

To enhance the stability and reliability of the system, the converters’ parallel operation can be cascaded to address the constraints posed by the substantial integration of renewable resources. Buck-boost DC-DC converters are often controlled via a cascaded control approach to allow parallel operation. The converter’s output current and its voltage will be controlled by nested loop control. This study proposes adaptive droop control parameters that are updated and verified online using the principal current sharing loops to minimize the fluctuation in load current sharing. When the converters in the microgrid are paralleled, load sharing will be accomplished using the droop control approach in addition to nested proportional-integral-based voltage and current control loops. To restore the correct voltage across the DC microgrid, an outer addition voltage secondary loop will be used, rectifying any voltage disparities caused by the droop management strategy. Several common load resistances and input voltage variations are used to test the suggested method. Using a linearized model, this work assesses the stability and performance of the proposed method. It then confirms the findings with an adequate model created in MATLAB/SIMULINK, Real-Time Simulation Fundamentals, and hardware-based experiments.

مؤلف البحث
Mohamed A Mesbah, Khairy Sayed, Adel Ahmed, Mahmoud Aref, Mahmoud A Gaafar, Mahmoud A Mossa, Mishari Metab Almalki, Thamer AH Alghamdi
تاريخ البحث
مجلة البحث
IEEE Access
مؤلف البحث
صفحات البحث
47483-47493
الناشر
IEEE
عدد البحث
12
موقع البحث
https://ieeexplore.ieee.org/abstract/document/10480682
سنة البحث
2024