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Frequency Response Analysis of Current Controllers for Selective Harmonic Compensation in Active Power Filters

Lascu, C., Asiminoaei, L., Boldea, I., Blaabjerg, F.·2009·IEEE Transactions on Industrial Electronics

Abstract

This paper compares four current control structures for selective harmonic compensation in active power filters. All controllers under scrutiny perform the harmonic compensation by using arrays of resonant controllers, one for the fundamental and one for each harmonic of interest, in order to achieve zero phase shift and unity gain in the closed-loop transfer function for selected harmonics. The complete current controller is the superposition of all individual harmonic controllers and may be implemented in various reference frames. The analysis is focused on the comparison of harmonic and total closed-loop transfer functions for each controller. Analytical similarities and differences between schemes in terms of frequency response characteristics are emphasized. It is concluded that three of them have identical harmonic behavior despite the fact that their implementation is significantly different. It emerges that the fourth one has superior behavior and robustness and can stably work at higher frequencies than the others. Theoretical findings and analysis are supported by comparative experimental results on a 7-kVA laboratory setup. The highest harmonic frequency that can be stably compensated with each control method has been determined, indicating significant differences in the control performance.

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Metadata

Authors
Lascu, C., Asiminoaei, L., Boldea, I., & Blaabjerg, F.
Venue
IEEE Transactions on Industrial Electronics
Published
2009-02
Volume
56
Issue
2
Pages
337-347
ISSN
0278-0046 (ISSN-L)
OpenAlex
W2113141985
Cited by
337
References
6
FWCI
20.92
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Frequency Response Analysis of Current Controllers for Selective Harmonic Compensation in Active Power Filters. https://app.cochat.ai/papers/10.1109/tie.2008.2006953
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Lascu, C., Asiminoaei, L., Boldea, I., & Blaabjerg, F. (2009). Frequency Response Analysis of Current Controllers for Selective Harmonic Compensation in Active Power Filters. IEEE Transactions on Industrial Electronics. https://doi.org/10.1109/tie.2008.2006953

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