| Autor: |
Yicheng Liao, Xiongfei Wang |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Liao, Y & Wang, X 2021, ' Controller design-oriented analysis of grid-forming converters for stability robustness enhancement ', Chinese Journal of Electrical Engineering, vol. 7, no. 4, pp. 37-48 . https://doi.org/10.23919/CJEE.2021.000036 |
| DOI: |
10.23919/CJEE.2021.000036 |
| Popis: |
Grid-forming converters can suffer from control interaction problems in grid connections that can result in small-signal instability. Their inner-loop voltage controller tends to interact with the outer-loop power controller, rendering the controller design more difficult. To conduct a design-oriented analysis, a control-loop decomposition approach for grid-forming converters is proposed. Combined with impedance-based stability analysis, the control-loop decomposition approach can reveal how different control loops affect the converter-grid interaction. This results in a robust controller design enabling grid-forming converters to operate within a wider range of grid short-circuit ratios. Finally, simulation and experimental results, which validate the approach, are presented. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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