In the quest for sustainable energy solutions, researchers are constantly pushing the boundaries of technology to integrate renewable energy sources more effectively into the grid. A recent study published in the journal “Applications of Modelling and Simulation” offers a promising approach to enhancing the performance of grid-connected photovoltaic (PV) systems coupled with battery energy storage systems (BESS). The research, led by Mehmet Can Sekanli from the Department of Electrical-Electronics Engineering at Isparta University of Applied Sciences in Türkiye, focuses on the dynamic control and analysis of Dual Active Bridge (DAB) converters, a critical component in managing the bidirectional flow of energy between PV arrays and batteries.
The study addresses a fundamental challenge in renewable energy: intermittency. Solar power, while abundant, is not always available, and integrating it with energy storage systems can help smooth out fluctuations. Sekanli and his team simulated a grid-connected PV-BESS system using MATLAB/Simulink, incorporating a 36-kW PV array and a 162-kWh battery with a bidirectional power capability of 18 kW. The system employed a Perturb & Observe (P&O) Maximum Power Point Tracking (MPPT) algorithm to optimize power extraction from the PV array and a Single Phase Shift (SPS) control strategy for the DAB converter to manage energy flow efficiently.
“Our goal was to demonstrate the robustness and practicality of the proposed design for improving grid-connected PV-BESS integration,” Sekanli explained. The simulation results were impressive, showing reliable DC-link voltage control around 600 V and a significant reduction in inverter harmonic distortion (THD ≈ 2.5%). These findings highlight the potential of DAB converters to enhance the stability and efficiency of renewable energy systems.
The implications of this research are substantial for the energy sector. As the demand for renewable energy continues to grow, the need for effective energy storage and management solutions becomes ever more critical. DAB converters, with their ability to handle bidirectional power flow, offer a promising avenue for improving the integration of PV systems with energy storage. This could lead to more stable and efficient grid operations, reducing the reliance on fossil fuels and lowering greenhouse gas emissions.
Moreover, the study’s focus on practical implementation and comprehensive testing across various scenarios underscores its relevance to commercial applications. “The results confirm the robustness and practicality of the proposed design,” Sekanli noted, emphasizing the potential for real-world impact. As the energy sector continues to evolve, innovations like these will play a crucial role in shaping a more sustainable future.
The research published in “Applications of Modelling and Simulation” provides a solid foundation for further exploration and development in the field of renewable energy integration. By leveraging advanced control strategies and efficient power conversion technologies, the energy sector can move closer to achieving a more resilient and sustainable grid. The work of Sekanli and his team serves as a testament to the power of innovation in driving progress towards a cleaner energy future.