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System Characteristics of Grid-Forming and Grid-Following Converter Systems
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| Author(s) |
Julian STRUWE, Holger WREDE, Hendrik VENNEGEERTS |
| Abstract |
Grid-forming converter controls have been observed to increase voltage stiffness and system strength. This work highlights the reasons for this behaviour, which is inherently fundamentally different from grid-following controls and, thus, why grid-following converters can notparticipate in the provision of virtual inertia. However, it shows that equipped with additional power-droops these controls can still benefit the grid.Therefore, based on the converter principle and additional support a new terminology that goes beyond the previously used terms 'grid-forming' and 'grid-following' is proposed. In simple black-box simulations it is proven how the different examples can be distinguished just by investigating their grid-behaviour. In addition to questions that are raised concerning the definition of system strength this work thus yields to a clear definition of grid-forming controls as well. |
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| Filename: | 0106-epe2023-full-09593989.pdf |
| Filesize: | 1.468 MB |
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| Type |
Members Only |
| Date |
Last modified 2023-09-24 by System |
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