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Abstract
Harmonic stability problems caused by the resonance of high-order filters in power electronic systems are ever increasing. The use of passive damping does provide a robust solution to address these issues, but at the price of reduced efficiency due to the presence of additional passive components. Hence, a new method is proposed in this paper to optimally design the passive damping circuit for the LCL filters and LCL with multi-tuned LC traps. In short, the optimization problem reduces to the proper choice of the multi-split capacitors or inductors in the high-order filter. Compared to existing design procedures, the proposed method simplifies the iterative design of the overall filter while ensuring the minimum resonance peak with a lower damping capacitor and a lower rated resistor. It is shown that there is only one optimal value of the damping resistor or quality factor to achieve a minimum filter resonance. The passive filters are designed, built and validated both analytically and experimentally for verification.
Original language | English |
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Journal | I E E E Transactions on Power Electronics |
Volume | 31 |
Issue number | 3 |
Pages (from-to) | 2083-2098 |
Number of pages | 16 |
ISSN | 0885-8993 |
DOIs | |
Publication status | Published - Mar 2016 |
Keywords
- Harmonic passive filters
- LCL filter
- Resonance damping
- Trap filter
- Voltage-source converters
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Dive into the research topics of 'Optimal Design of High-Order Passive-Damped Filters for Grid-Connected Applications'. 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