Abstract
—This letter analyzes the impact of a phase-locked loop (PLL) on small-signal stability in a system of interconnected grid-forming and grid-following (GFL) converters. It identifies an undiscovered instability phenomenon, i.e., the system is prone to unstable when the bandwidth of PLL used with GFL converter is low. Experiments validate the theoretical analysis.
| Original language | English |
|---|---|
| Journal | IEEE Transactions on Power Electronics |
| Volume | 39 |
| Issue number | 10 |
| Pages (from-to) | 11980-11985 |
| Number of pages | 6 |
| ISSN | 0885-8993 |
| DOIs | |
| Publication status | Published - 2024 |
Bibliographical note
Publisher Copyright:© 2024 IEEE.
Keywords
- Grid-following (GFL) converter
- grid-forming (GFM) converter
- phase-locked loop (PLL)
- small-signal stability