Enhancing Microgrid Stability with Power-to-Hydrogen Technologies
Key Ideas
  • The article discusses the importance of voltage and reactive power control in microgrids to manage fluctuations caused by integrating electrolyzers and fuel cells.
  • It focuses on coordinating electrolyzers, hydrogen storage, and fuel cells with other energy sources like photovoltaic inverters, diesel generators, and electric vehicles.
  • Dynamic network reconfiguration is used to improve microgrid flexibility, and an unscented transformation method handles uncertainties in resource availability.
  • The model presented in the article, solved through GUROBI optimization, demonstrates effective simultaneous operation of various resources, resulting in a stable microgrid with consistent voltage levels.
The article delves into the challenges faced in microgrids when electrolyzers and fuel cells are integrated, leading to voltage fluctuations. To address this issue, the paper emphasizes the significance of controlling voltage and reactive power to maintain system stability and protect equipment. It proposes a method that involves coordinating different energy components such as electrolyzers, hydrogen storage, fuel cells, on-load tap changers, photovoltaic inverters, renewable sources, diesel generators, and electric vehicles within the microgrid. Moreover, the article highlights the use of dynamic network reconfiguration to enhance the flexibility of microgrids and improve their overall adaptability. By employing the unscented transformation method, the model is able to account for uncertainties related to the availability of resources, ensuring robust management of voltage and reactive power. The study formulates this coordination as a convex optimization problem, which is efficiently solved using GUROBI version 11. The model's effectiveness is validated through simulations on a modified 33-bus microgrid, demonstrating the successful simultaneous operation of diverse resources. The results show that the proposed model offers a viable solution for managing reconfigurable microgrids, maintaining a stable voltage profile across the system.
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