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

Authors :
June-Seok Lee
Hae-Gwang Jeong
Kyo-Beum Lee
Source :
Journal of Power Electronics. 12:326-332
Publication Year :
2012
Publisher :
The Korean Institute of Power Electronics, 2012.

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.

Details

ISSN :
15982092
Volume :
12
Database :
OpenAIRE
Journal :
Journal of Power Electronics
Accession number :
edsair.doi...........778d3db3df4ed021266e11ea3b77790d