A new LCL-filter with in-series parallel resonant circuit for single-phase grid-tied inverter

Weimin Wu; Yunjie Sun; Zhe Lin; Tianhao Tang; Frede Blaabjerg; Henry Shu-Hung Chung

doi:10.1109/TIE.2013.2293703

Author(s)

Weimin Wu
Yunjie Sun
Zhe Lin
Tianhao Tang
Frede Blaabjerg

Related Research Unit(s)

Centre for Smart Energy Conversion and Utilization Research

Detail(s)

Original language	English
Article number	6678624
Pages (from-to)	4640-4644
Journal / Publication	IEEE Transactions on Industrial Electronics
Volume	61
Issue number	9
Online published	5 Dec 2013
Publication status	Published - Sep 2014

Link(s)

DOI	DOI https://doi.org/10.1109/TIE.2013.2293703 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84897434777&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(68455812-5027-4545-9871-62790edcf2d2).html

Abstract

When designing a higher order output power filter for a transformerless grid-tied converter using pulsewidth modulation (PWM), the requirements on the leakage current, the electromagnetic interference (EMI) noise, and the harmonics of the grid-injected current should be addressed. For an LCL -filter-based single-phase grid-tied full-bridge inverter system, it is possible to decrease the total inductance as well as the size and the cost, if the harmonic currents around the switching frequency can be fully suppressed. In this paper, the grid-injected current harmonics and the conducted EMI noise are investigated for the conventional LCL-filter-based system. Based on this, a modified LCL-filter topology using an extra parallel L-{r}C_r resonant circuit is proposed to reduce the total inductance value, without increasing the capacitive reactive power. The validity is verified through the experiments on a 500-W 110-V/50-Hz prototype. © 1982-2012 IEEE.

Research Area(s)

Common-mode noise, Differential-mode noise, Electromagnetic interference (EMI), Harmonic current, LCL -filter, Parallel LC resonant circuit, Stiff grid

Citation Format(s)

[ RIS ] [ BibTeX ]

A new LCL-filter with in-series parallel resonant circuit for single-phase grid-tied inverter. / Wu, Weimin; Sun, Yunjie; Lin, Zhe et al.

In: IEEE Transactions on Industrial Electronics, Vol. 61, No. 9, 6678624, 09.2014, p. 4640-4644.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Wu, W, Sun, Y, Lin, Z, Tang, T, Blaabjerg, F & Chung, HS-H 2014, 'A new LCL-filter with in-series parallel resonant circuit for single-phase grid-tied inverter', IEEE Transactions on Industrial Electronics, vol. 61, no. 9, 6678624, pp. 4640-4644. https://doi.org/10.1109/TIE.2013.2293703

Wu, W., Sun, Y., Lin, Z., Tang, T., Blaabjerg, F., & Chung, H. S-H. (2014). A new LCL-filter with in-series parallel resonant circuit for single-phase grid-tied inverter. IEEE Transactions on Industrial Electronics, 61(9), 4640-4644. [6678624]. https://doi.org/10.1109/TIE.2013.2293703

Wu W, Sun Y, Lin Z, Tang T, Blaabjerg F, Chung HS-H. A new LCL-filter with in-series parallel resonant circuit for single-phase grid-tied inverter. IEEE Transactions on Industrial Electronics. 2014 Sep;61(9):4640-4644. 6678624. Epub 2013 Dec 5. doi: 10.1109/TIE.2013.2293703

Wu, Weimin ; Sun, Yunjie ; Lin, Zhe et al. / A new LCL-filter with in-series parallel resonant circuit for single-phase grid-tied inverter. In: IEEE Transactions on Industrial Electronics. 2014 ; Vol. 61, No. 9. pp. 4640-4644.