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Abstract
LLCL-filter is recently emerging into grid-connected inverters due to its high attenuation of high-frequency harmonics with a smaller size. Active damping methods have been proposed to reduce the resonance peak caused by the LLCL-filter to stabilize the whole system without extra losses. The active damping method with an extra feedback provides a high rejection of the resonance so that the dynamic is improved. In this paper, taking a Proportional-Resonant (PR) together with a harmonic compensator (HC), resonant-inductor-voltage-feedback active damping is applied on an LLCL-filter based three-phase grid-connected voltage source inverter (VSI). The design method is described through the analysis in the s-domain and the z-domain. Then the robustness and harmonic rejection of the grid voltage with the active damping method is analyzed considering the processing delay. Finally, the performance of the proposed method is investigated in simulation and by experimental results.
Original language | English |
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Title of host publication | Proceedings of the 2014 IEEE Energy Conversion Congress and Exposition (ECCE) |
Number of pages | 8 |
Publisher | IEEE Press |
Publication date | Sept 2014 |
Pages | 1194-1201 |
DOIs | |
Publication status | Published - Sept 2014 |
Event | 2014 IEEE Energy Conversion Congress and Exposition (ECCE) - Pittsburgh, Pittsburgh, United States Duration: 14 Sept 2014 → 18 Sept 2014 |
Conference
Conference | 2014 IEEE Energy Conversion Congress and Exposition (ECCE) |
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Location | Pittsburgh |
Country/Territory | United States |
City | Pittsburgh |
Period | 14/09/2014 → 18/09/2014 |
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Dive into the research topics of 'Resonant-inductor-voltage feedback active damping based control for grid-connected inverters with LLCL-filters'. Together they form a unique fingerprint.Projects
- 1 Finished
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HARMONY: HARMONY - Harmonic identification, mitigation and control in power electronics based power systems
Blaabjerg, F., Bak, C. L., Wang, X., Beres, R. N., Kwon, J., Gui, Y., Yoon, C. & Ebrahimzadeh, E.
01/02/2013 → 28/02/2018
Project: Research