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Abstract
In this paper a comprehensive analysis of three passive damping methods is done under parallel operation of multiple current controlled voltage source converters. One could argue that a well damped LCL filter with no peaking in the output impedance and stable designed controllers will turn into stable status under the parallel operation with other converters that share similar configuration. However, it is shown that this is not always the case, especially because of the coupling between converters and the grid impedance. For the considered ratings, under grid impedance variation, it is found that with grid-side current feedback the stability may be improved in parallel operation while for converter-side feedback, the stability of the current controller is always decreased compared with the single converter case. The proposed stability analysis and experimental tests demonstrates the theoretical analysis.
Original language | English |
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Title of host publication | Proceedings of the 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA) |
Number of pages | 8 |
Publisher | IEEE Press |
Publication date | May 2014 |
Pages | 3320-3327 |
ISBN (Print) | 9781479927067 |
ISBN (Electronic) | 9781479927043 |
DOIs | |
Publication status | Published - May 2014 |
Event | 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA) - Hiroshima, Japan Duration: 18 May 2014 → 21 May 2014 |
Conference
Conference | 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE-ASIA) |
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Country/Territory | Japan |
City | Hiroshima |
Period | 18/05/2014 → 21/05/2014 |
Keywords
- Impedance based stability analysis
- LCL filter
- Passive damping
- Voltage-source converters
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Dive into the research topics of 'Comparative evaluation of passive damping topologies for parallel grid-connected converters with LCL 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