Distributed generation in low-voltage DC systems by wind energy in the Baja California Peninsula, Mexico

Rodolfo Farías Miranda, Nadia Maria Salgado-Herrera, Osvaldo Rodríguez-Hernández, Juan Ramon Rodríguez-Rodríguez, Miguel Robles, Dante Ruiz-Robles and Vicente Venegas-Rebollar

Energy, 2022, vol. 242, issue C

Abstract: Mexico's national electric grid comprises ten regional systems, with one isolated in the south of the Baja California Peninsula. In addition, providing electricity access remains a challenge in the country. Therefore, distributed renewable energy solutions are relevant to satisfy the electricity demand and promote grid development. Distributed renewable energy access (DREA) based on a wind energy conversion system integrated into low-voltage direct current (LVDC) networks is presented. The DREA is analysed and simulated under wind speed conditions measured and recorded for one year at Baja California Sur. A representative variability is applied to five type-4 wind turbines based on wind speed turbulence intensity analysis. The generated power is transferred through a bidirectional dual active bridge converter, controlled by a novel small-signal model using a single closed-loop proportional-integral control, owing to its modularity, power density, and ability to transfer power from LVDC to high-voltage direct current. The effectiveness and robustness of the proposed DREA are assessed via a complete mathematical model, corroborated by the simulation results in MATLAB-Simulink®, and validated by experimental results using the real-time simulator Opal-RT Technologies® and laboratory prototyping. The results indicate a DC-link voltage compensation and integration of a power capacity of 150 kW in the LVDC networks with an efficiency of 94%.

Keywords: Distributed renewable energy access; Low-voltage direct current; Wind energy conversion system; Dual active bridge; Small signal model; Real-time validation (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:242:y:2022:i:c:s0360544221027791

DOI: 10.1016/j.energy.2021.122530

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