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Abstract
This paper addresses the interaction between harmonic resonant controllers and active damping of LCL resonance in voltage source converters. A virtual series R-C damper in parallel with the filter capacitor is proposed with the capacitor current feedback loop. The phase lag resulting from the digital computation and modulation delays is thus compensated by the virtual capacitor. The frequency region that allows using resonant controllers is then identified with the virtual damper. It reveals that the upper frequency limit of harmonic resonant controllers can be increased above the gain crossover frequency defined by the proportional gain of current controller. This is of particular interest for high-performance active harmonic filtering applications and low-pulse-ratio converters. Case studies in experiments validate 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 | 216-223 |
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 |
Fingerprint
Dive into the research topics of 'Design-Oriented Analysis of Resonance Damping and Harmonic Compensation for LCL-Filtered Voltage Source Converters'. 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