In a significant advancement for renewable energy management, researchers have proposed a novel fractional-order proportional integral (FOPI) controller tailored for standalone microgrids powered by wind and solar energy. This innovative approach, developed by Hani Albalawi from the Electrical Engineering Department at the University of Tabuk, aims to enhance energy management and system performance while addressing the challenges posed by the intermittent nature of renewable resources.
Standalone microgrids, particularly those utilizing hybrid energy systems, are becoming increasingly vital in rural electrification and reducing reliance on traditional utility grids. Albalawi’s research focuses on a hybrid energy storage system that combines batteries and ultracapacitors, which provides a more stable energy supply in the face of fluctuating wind and solar inputs. “The integration of a fractional-order controller allows for greater flexibility and improved performance in managing these complex systems,” Albalawi explains. “Our findings indicate that this approach significantly outperforms traditional controllers in maintaining consistent voltage and frequency, even during disturbances.”
The study utilized the gorilla troop optimization (GTO) technique to fine-tune the FOPI controller’s parameters, leading to a marked improvement in the microgrid’s transient performance. Simulations conducted with MATLAB/Simulink demonstrated that the FOPI controller maintained a load voltage with minimal overshoot compared to a conventional PI controller, which showed a much higher overshoot percentage. This enhanced stability is crucial for commercial applications, especially in regions where energy reliability is paramount.
Moreover, the research highlights the potential for cost savings and space efficiency in energy systems. By effectively managing energy storage and reducing the reliance on batteries alone, the proposed controller could lead to smaller, lighter, and less expensive energy systems. “The implications for hybrid distributed energy systems are profound, potentially facilitating a broader integration of renewable resources into the global energy landscape,” Albalawi adds.
The study also included practical validation through a Hardware-in-the-Loop (HIL) emulator, ensuring that the simulation results align with real-world applications. This step is crucial for commercial deployment, as it bridges the gap between theoretical research and practical implementation.
As the world continues to grapple with the challenges of climate change and energy demands, research like Albalawi’s paves the way for more resilient and efficient energy systems. The findings, published in ‘Fractal and Fractional’, underscore the importance of innovative control strategies in the renewable energy sector. The potential for these advancements to reshape energy management practices could lead to a more sustainable and reliable energy future, particularly in underserved regions.
For more information about Hani Albalawi’s work, you can visit the Electrical Engineering Department at the University of Tabuk.
