ENHANCING DC LINK VOLTAGE STABILIZATION USING FUZZYCONTROLLED POWER MANAGEMENT IN A SOLAR-BASED DC MICROGRID SUPPORTED BY A HYBRID ENERGY STORAGE SYSTEM

Mr. Kore Shubham Rajabhau; Dr. V. V. Yerigeri; Dr. S. V. Yerigeri

doi:10.62643/

Authors

Mr. Kore Shubham Rajabhau Author
Dr. V. V. Yerigeri Author
Dr. S. V. Yerigeri Author

DOI:

https://doi.org/10.62643/

Keywords:

DC Microgrid; Hybrid Energy Storage System (HESS); Fuzzy Logic Controller; Power Management; Voltage Stabilization; Renewable Energy Integration; DC Link Voltage Control.

Abstract

The integration of renewable energy sources into modern electrical systems presents significant challenges in maintaining power quality and voltage stability due to their intermittent nature. This research focuses on enhancing DC link voltage stabilization through a fuzzy-controlled power management strategy in a solar-based DC microgrid (DCMG) supported by a Hybrid Energy Storage System (HESS). The HESS, consisting of a battery and supercapacitor, compensates for both highand low-frequency power fluctuations, thereby ensuring reliable system performance. A fuzzy logic controller (FLC) is implemented to dynamically manage the power distribution between the PV system, load, and energy storage units. The proposed control scheme improves the dynamic response of the microgrid, minimizes voltage deviation, and enhances energy utilization efficiency. MATLAB/Simulink simulations validate the effectiveness of the fuzzy-based controller, showing significant improvements in DC link voltage regulation compared to conventional PI-based systems. This work contributes to the advancement of renewable-based DC microgrids by providing a robust and intelligent power management framework that ensures optimal stability and reliability under varying operating conditions.