Active Damping for Wind Power Systems with LCL Filters Using a DFT

June-Seok Lee; Hae-Gwang Jeong; Kyo-Beum Lee

Active Damping for Wind Power Systems with LCL Filters Using a DFT

June-Seok Lee

Hae-Gwang Jeong

Kyo-Beum Lee

Vol. 12, No. 2, pp. 326-332, Mar. 2012

10.6113/JPE.2012.12.2.326

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Abstract

This paper proposes a simple active damping algorithm for small-scale wind power systems with an LCL filter. Compared to an L filter or an LC filter, an LCL filter can decrease the harmonics induced by low switching frequencies and produce a satisfactory grid-side current using a comparatively low inductance. Additional active damping of the filter resonance is necessary when an LCL filter is used. This paper introduces an active damping method using a Discrete Fourier Transform (DFT) filter to improve performance without additional sensors or complexity. Experimental results are shown to verify the validity of the proposed algorithm as an active damping method.

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Cite this article

[IEEE Style]

J. Lee, H. Jeong, K. Lee, "Active Damping for Wind Power Systems with LCL Filters Using a DFT," Journal of Power Electronics, vol. 12, no. 2, pp. 326-332, 2012. DOI: 10.6113/JPE.2012.12.2.326.

[ACM Style]

June-Seok Lee, Hae-Gwang Jeong, and Kyo-Beum Lee. 2012. Active Damping for Wind Power Systems with LCL Filters Using a DFT. Journal of Power Electronics, 12, 2, (2012), 326-332. DOI: 10.6113/JPE.2012.12.2.326.