Grid-voltage-feedforward active damping for grid-connected inverter with LCL filter
For the grid-connected voltage source inverters, the feedforward scheme of grid voltage is commonly adopted to mitigate the current distortion caused by grid background voltages harmonics. This paper investigates the grid-voltage-feedforward active damping for grid connected inverter with LCL filter...
| Main Authors: | , , , , , |
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| Format: | Conference Paper |
| Published: |
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/21942 |
| _version_ | 1848750731837833216 |
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| author | Lu, M. Wang, X. Blaabjerg, F. Muyeen, S.M. Al-Durra, A. Leng, S. |
| author_facet | Lu, M. Wang, X. Blaabjerg, F. Muyeen, S.M. Al-Durra, A. Leng, S. |
| author_sort | Lu, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | For the grid-connected voltage source inverters, the feedforward scheme of grid voltage is commonly adopted to mitigate the current distortion caused by grid background voltages harmonics. This paper investigates the grid-voltage-feedforward active damping for grid connected inverter with LCL filter. It reveals that proportional feedforward control can not only fulfill the mitigation of grid disturbance, but also offer damping effects on the LCL filter resonance. Digital delays are intrinsic to digital controlled inverters; with these delays, the feedforward control can be equivalent to a damping resistor and a reactance paralleled with filter capacitor. The damping performance in different frequency regions are discussed through Bode diagrams. Compared to other widely used active damping strategies, no extra sensor is needed because the Point of Common Coupling (PCC) voltage is sampled for Phase Locked Loop (PLL). Simulation and experiment results are provided for verifying the theoretical analyses. |
| first_indexed | 2025-11-14T07:41:30Z |
| format | Conference Paper |
| id | curtin-20.500.11937-21942 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:41:30Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-219422017-09-13T13:55:05Z Grid-voltage-feedforward active damping for grid-connected inverter with LCL filter Lu, M. Wang, X. Blaabjerg, F. Muyeen, S.M. Al-Durra, A. Leng, S. For the grid-connected voltage source inverters, the feedforward scheme of grid voltage is commonly adopted to mitigate the current distortion caused by grid background voltages harmonics. This paper investigates the grid-voltage-feedforward active damping for grid connected inverter with LCL filter. It reveals that proportional feedforward control can not only fulfill the mitigation of grid disturbance, but also offer damping effects on the LCL filter resonance. Digital delays are intrinsic to digital controlled inverters; with these delays, the feedforward control can be equivalent to a damping resistor and a reactance paralleled with filter capacitor. The damping performance in different frequency regions are discussed through Bode diagrams. Compared to other widely used active damping strategies, no extra sensor is needed because the Point of Common Coupling (PCC) voltage is sampled for Phase Locked Loop (PLL). Simulation and experiment results are provided for verifying the theoretical analyses. 2016 Conference Paper http://hdl.handle.net/20.500.11937/21942 10.1109/APEC.2016.7468134 restricted |
| spellingShingle | Lu, M. Wang, X. Blaabjerg, F. Muyeen, S.M. Al-Durra, A. Leng, S. Grid-voltage-feedforward active damping for grid-connected inverter with LCL filter |
| title | Grid-voltage-feedforward active damping for grid-connected inverter with LCL filter |
| title_full | Grid-voltage-feedforward active damping for grid-connected inverter with LCL filter |
| title_fullStr | Grid-voltage-feedforward active damping for grid-connected inverter with LCL filter |
| title_full_unstemmed | Grid-voltage-feedforward active damping for grid-connected inverter with LCL filter |
| title_short | Grid-voltage-feedforward active damping for grid-connected inverter with LCL filter |
| title_sort | grid-voltage-feedforward active damping for grid-connected inverter with lcl filter |
| url | http://hdl.handle.net/20.500.11937/21942 |