Search results for " grid-following"

showing 2 items of 2 documents

Power System Oscillations with Different Prevalence of Grid-Following and Grid-Forming Converters

2022

The oscillatory behaviour of the power system is an aspect that is significantly affected by the increasing integration of converter-based generation sources. Several works address the impact of non-synchronous generation on the operation of the system from different points of view, but only a few studies focus on power-frequency oscillations with a prevalence of generation sources interfaced through power electronics. A lack of research can be found in particular in the comparative analysis of the two main control strategies for power converters, namely grid-following and grid-forming. The article aims to contribute to this direction, starting from a theoretical analysis of the two control…

Control and Optimizationdampingvirtual synchronous machineRenewable Energy Sustainability and the EnvironmentEnergy Engineering and Power TechnologyBuilding and Constructionelectromechanical oscillationinertiadamping; electromechanical oscillations; grid-following; grid-forming; inertia; phase-locked loop; power converters; virtual synchronous machinegrid-formingphase-locked looppower convertergrid-followingElectrical and Electronic EngineeringEngineering (miscellaneous)Energy (miscellaneous)
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Dynamic Control of Static Converters for the Transition from Grid-on to Grid-off Operation of AC/DC Microgrids

2022

In this paper, specific control logics defined for generators, controllable loads and electric energy storage systems are illustrated in order to improve the reliability of AC/DC hybrid microgrids in their grid-off operation following failure events such as short-circuits, line breaks, sudden disconnections of generating units or loads, etc. After defining specific control schemes, these were modelled in a digital environment and finally tested with dynamic simulations. Finally, the paper highlights the role of virtual synchronous machine control for the self-healing capacity of islanded hybrid microgrids.

Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaAC/dC microgrids converters dynamic regime grid forming grid-following inertia system2022 IEEE International Conference on Environment and Electrical Engineering and 2022 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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