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Regions of Active Damping Control for LCL Filters

Parker, Stewart Geoffrey, McGrath, Brendan P., Holmes, Donald Grahame·2014·IEEE Transactions on Industry Applications

Abstract

The control of a grid-connected voltage source inverter with an inductive-capacitive-inductive (LCL) filter is a very challenging task, since the LCL network causes a resonance phenomenon near to the control stability boundary. While many active damping methods have been proposed to overcome this issue, the role that pulse width modulation transport delay plays in the effectiveness of these strategies is still not fully resolved. This paper presents a theoretical discrete time-analysis framework that identifies three distinct regions of LCL filter resonance, namely, a high resonant frequency region where active damping is not required, a critical resonant frequency where a controller cannot stabilize the system, and a low resonant frequency region where active damping is essential. Suitable controllers are then proposed for the two stable regions, with gain calculations that allow for the greatest system bandwidth and damping. Simulation and experimental results verify the presented analysis.

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Metadata

Authors
Parker, S. G., McGrath, B. P., & Holmes, D. G.
Venue
IEEE Transactions on Industry Applications
Published
2014-01
Volume
50
Issue
1
Pages
424-432
ISSN
  • 0093-9994 (ISSN-L)
  • 1939-9367
OpenAlex
W2078416002
Cited by
624
References
2
FWCI
70.58
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Regions of Active Damping Control for LCL Filters. https://app.cochat.ai/papers/10.1109/tia.2013.2266892
The paper
Parker, S. G., McGrath, B. P., & Holmes, D. G. (2014). Regions of Active Damping Control for LCL Filters. IEEE Transactions on Industry Applications. https://doi.org/10.1109/tia.2013.2266892

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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