Abstract
Grid-forming wind turbines are a promising technology for weak grids with a high penetration of converter-based power sources. The droop control, the synchronverter, and the virtual synchronous machine grid-forming control topologies are benchmarked by voltage and frequency stability performance from a frequency disturbance under different grid conditions (by varying short-circuit ratio, X/R ratio, and the inertia). The wind turbines are modelled in an offshore wind farm application and the frequency disturbance are scaled to 5% of the installed capacity. The study have shown that the virtual synchronous machine performs best regarding frequency and voltage compliance in weak grids under a frequency disturbance. DC-link modelling is essential for dynamic simulations of grid-forming converters, as grid perturbations can drain the link for energy.
Original language | English |
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Title of host publication | Proceedings of 2022 57th International Universities Power Engineering Conference (UPEC) |
Number of pages | 8 |
Publisher | IEEE |
Publication date | 2022 |
ISBN (Electronic) | 978-1-6654-5505-3 |
DOIs | |
Publication status | Published - 2022 |
Event | 57th International Universities Power Engineering Conference - Istanbul, Turkey Duration: 30 Aug 2022 → 2 Sept 2022 |
Conference
Conference | 57th International Universities Power Engineering Conference |
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Country/Territory | Turkey |
City | Istanbul |
Period | 30/08/2022 → 02/09/2022 |
Keywords
- Frequency stability
- Grid-forming
- Weak grid
- Voltage stability
- Droop control
- Synchronverter
- Virtual synchronous machine
- Offshore wind farm