Abstract
This letter develops an equivalent circuit model of a grid-forming (GFM) converter with a circular current limiter and analyzes its transient stability. It is revealed that the inner control loop can be simplified as a voltage source behind an equivalent resistor. Based on the developed model, theoretical analysis and experimental tests demonstrate that the transient stability of a P-f droop-controlled GFM converter with the circular current limiter can be assured whenever there exist stable equilibrium points.
| Original language | English |
|---|---|
| Pages (from-to) | 3141-3144 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Power Systems |
| Volume | 37 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Jul 2022 |
| Externally published | Yes |
Keywords
- Equivalent circuit model
- circular current limiter
- grid-forming converter
- transient stability
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