Passivity Enhancement of Grid-Tied Converters by Series LC-Filtered Active Damper
| Autor: | Haofeng Bai, Xiongfei Wang, Frede Blaabjerg, Poh Chiang Loh |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Passivity
stability Engineering Admittance business.industry 020209 energy 020208 electrical & electronic engineering Passivity 02 engineering and technology Converters Grid Damper Active damper Shock absorber Parasitic capacitance Control and Systems Engineering Control theory 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Grid-tied converter Damping torque business Admittance shaping Damping resistance |
| Zdroj: | Bai, H, Wang, X, Loh, P C & Blaabjerg, F 2017, ' Passivity Enhancement of Grid-Tied Converters by Series LC-Filtered Active Damper ', I E E E Transactions on Industrial Electronics, vol. 64, no. 1, pp. 369-379 . https://doi.org/10.1109/TIE.2016.2562604 |
| ISSN: | 1557-9948 0278-0046 |
| DOI: | 10.1109/tie.2016.2562604 |
| Popis: | The series LC -filtered active damper can be used for stabilizing a grid converter tied to the nonideal grid. Its operation principle is to mimic a damping resistance at the resonance frequencies appearing in the grid. However, the selection of the damping resistance has not been fully analyzed in the literature. Its effect with parasitic capacitance present in the grid has also usually been ignored, even though it may bring new challenges to the active damper. To address these issues, passivity is applied to study the grid converter stability before the understanding gained is used for formulating a damping resistance selection method. The method formulated can further be improved by admittance shaping so that system stability can always be ensured even when considering grid parasitic capacitance and control imperfection. Experimental results obtained have verified the expectations, and, hence, the suitability of the presented methods for the series LC -filtered active damper. |
| Databáze: | OpenAIRE |
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