Analysis and Design of Robust LLCL-Type Filters for Grid-Tied Applications with Capacitor-Current Active Damping

Pei Cai; Xiaohua Wu; Yongheng Yang; Wenli Yao; Frede Blaabjerg

doi:10.1109/IPEMC-ECCEAsia48364.2020.9367919

Analysis and Design of Robust LLCL-Type Filters for Grid-Tied Applications with Capacitor-Current Active Damping

Pei Cai, Xiaohua Wu, Yongheng Yang, Wenli Yao, Frede Blaabjerg

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

1 Citationer (Scopus)

Abstract

LCL filters are adopted to attenuate the switching-frequency harmonics in grid-tied applications. To meet stringent grid requirements, higher order filters have further been proposed. LLCL, is an example, which can provide an additional trap at the switching sideband frequency, and thus, it can better attenuate switching-frequency harmonics. Unlike traditional high-order filters with resonance frequency below the Nyquist frequency, this paper place it of the LLCL above the Nyquist frequency with trap frequency set at the dominant harmonics. Then, with capacitor-current damping, new stability regions are explored and employed for robust design against the grid impedance variations. Simulations verify the analysis and design.

Originalsprog	Engelsk
Titel	Proceedings of the 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia)
Antal sider	7
Forlag	IEEE
Publikationsdato	nov. 2020
Sider	785-791
Artikelnummer	9367919
ISBN (Elektronisk)	978-1-7281-5301-8
DOI	https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9367919
Status	Udgivet - nov. 2020
Begivenhed	9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia - Nanjing, Kina Varighed: 29 nov. 2020 → 2 dec. 2020

Konference

Konference	9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Land/Område	Kina
By	Nanjing
Periode	29/11/2020 → 02/12/2020

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10.1109/IPEMC-ECCEAsia48364.2020.9367919

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Citationsformater

Cai, P., Wu, X., Yang, Y., Yao, W., & Blaabjerg, F. (2020). Analysis and Design of Robust LLCL-Type Filters for Grid-Tied Applications with Capacitor-Current Active Damping. I Proceedings of the 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia) (s. 785-791). Artikel 9367919 IEEE. https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9367919

@inproceedings{9c9a2a9091104a468da72611d1de5f17,

title = "Analysis and Design of Robust LLCL-Type Filters for Grid-Tied Applications with Capacitor-Current Active Damping",

abstract = "LCL filters are adopted to attenuate the switching-frequency harmonics in grid-tied applications. To meet stringent grid requirements, higher order filters have further been proposed. LLCL, is an example, which can provide an additional trap at the switching sideband frequency, and thus, it can better attenuate switching-frequency harmonics. Unlike traditional high-order filters with resonance frequency below the Nyquist frequency, this paper place it of the LLCL above the Nyquist frequency with trap frequency set at the dominant harmonics. Then, with capacitor-current damping, new stability regions are explored and employed for robust design against the grid impedance variations. Simulations verify the analysis and design.",

keywords = "Active damping, frequency folding, LCL, LLCL, capacitor current, grid-tied inverters",

author = "Pei Cai and Xiaohua Wu and Yongheng Yang and Wenli Yao and Frede Blaabjerg",

year = "2020",

month = nov,

doi = "10.1109/IPEMC-ECCEAsia48364.2020.9367919",

language = "English",

pages = "785--791",

booktitle = "Proceedings of the 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia)",

publisher = "IEEE",

address = "United States",

note = "9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia ; Conference date: 29-11-2020 Through 02-12-2020",

}

Cai, P, Wu, X, Yang, Y, Yao, W & Blaabjerg, F 2020, Analysis and Design of Robust LLCL-Type Filters for Grid-Tied Applications with Capacitor-Current Active Damping. i Proceedings of the 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia)., 9367919, IEEE, s. 785-791, 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia, Nanjing, Kina, 29/11/2020. https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9367919

Analysis and Design of Robust LLCL-Type Filters for Grid-Tied Applications with Capacitor-Current Active Damping. / Cai, Pei; Wu, Xiaohua; Yang, Yongheng et al.
Proceedings of the 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia). IEEE, 2020. s. 785-791 9367919.

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

TY - GEN

T1 - Analysis and Design of Robust LLCL-Type Filters for Grid-Tied Applications with Capacitor-Current Active Damping

AU - Cai, Pei

AU - Wu, Xiaohua

AU - Yang, Yongheng

AU - Yao, Wenli

AU - Blaabjerg, Frede

PY - 2020/11

Y1 - 2020/11

N2 - LCL filters are adopted to attenuate the switching-frequency harmonics in grid-tied applications. To meet stringent grid requirements, higher order filters have further been proposed. LLCL, is an example, which can provide an additional trap at the switching sideband frequency, and thus, it can better attenuate switching-frequency harmonics. Unlike traditional high-order filters with resonance frequency below the Nyquist frequency, this paper place it of the LLCL above the Nyquist frequency with trap frequency set at the dominant harmonics. Then, with capacitor-current damping, new stability regions are explored and employed for robust design against the grid impedance variations. Simulations verify the analysis and design.

AB - LCL filters are adopted to attenuate the switching-frequency harmonics in grid-tied applications. To meet stringent grid requirements, higher order filters have further been proposed. LLCL, is an example, which can provide an additional trap at the switching sideband frequency, and thus, it can better attenuate switching-frequency harmonics. Unlike traditional high-order filters with resonance frequency below the Nyquist frequency, this paper place it of the LLCL above the Nyquist frequency with trap frequency set at the dominant harmonics. Then, with capacitor-current damping, new stability regions are explored and employed for robust design against the grid impedance variations. Simulations verify the analysis and design.

KW - Active damping

KW - frequency folding

KW - LCL

KW - LLCL

KW - capacitor current

KW - grid-tied inverters

U2 - 10.1109/IPEMC-ECCEAsia48364.2020.9367919

DO - 10.1109/IPEMC-ECCEAsia48364.2020.9367919

M3 - Article in proceeding

SP - 785

EP - 791

BT - Proceedings of the 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia)

PB - IEEE

T2 - 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

Y2 - 29 November 2020 through 2 December 2020

ER -

Analysis and Design of Robust LLCL-Type Filters for Grid-Tied Applications with Capacitor-Current Active Damping

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