Olives Camps, Juan CarlosRodríguez del Nozal, ÁlvaroMauricio, Juan ManuelMaza Ortega, José María2023-05-102023-05-102023-04Olives Camps, J.C., Rodríguez del Nozal, Á., Mauricio, J.M. y Maza Ortega, J.M. (2023). A holistic model-less approach for the optimal real-time control of power electronics-dominated AC microgrids. Applied Energy, 335 (120761). https://doi.org/10.1016/j.apenergy.2023.120761.0306-26191872-9118https://hdl.handle.net/11441/145764This paper addresses the problem of optimally operating a set of grid-forming devices in an AC microgrid when a detailed network model is not available. The main aim of the approach is to maximize the power sharing of the controllable grid-forming devices and to maintain the frequency and the nodal voltages of the microgrid as close as possible to their corresponding references. The proposed control architecture is conformed by a local control layer in each grid-forming device that intends to emulate the performance of a synchronous machine and a centralized secondary controller composed of two complementary tools that coordinates the setpoints of the grid-forming devices: an online feedback optimization algorithm and an automatic generation control. The proposed method has been validated through simulations and hardware-in-the-loop tests, evidencing its good performance and robustness under different conditions.application/pdf11 p.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/AC microgridsHierarchical controlOnline feedback optimizationLoad sharing controlSecondary voltage controlinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1016/j.apenergy.2023.120761