A Novel Method to Identify the "Trouble Maker" of Internal Instability in Multi-paralleled Inverters System

Weimin Wu; Zhijun Zhao; Frede Blaabjerg; Henry Chung

doi:10.1109/IPEMC-ECCEAsia48364.2020.9368188

A Novel Method to Identify the "Trouble Maker" of Internal Instability in Multi-paralleled Inverters System

Weimin Wu, Zhijun Zhao, Frede Blaabjerg, Henry Chung

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

Abstract

Instability in multi-paralleled LCL-filtered grid-connected inverters system always presents that each inverter is unstable due to the coupling of grid impedance. During stability analysis of multi-paralleled inverters system, which inverter or inverters ("trouble maker or makers") contributes or contribute instability to whole system is rarely studied. In this paper, a novel identification method is proposed to exactly judge the "trouble maker or makers" of instability in a multi-paralleled inverters system, based on the comparison result between the root mean square (RMS) value of harmonic voltage in the common coupling point (PCC) and the one across the filter capacitor. The simulation and experimental results are provided for verification.

Originalsprog	Engelsk
Titel	Proceedings of the 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia)
Antal sider	6
Forlag	IEEE
Publikationsdato	nov. 2020
Sider	3335-3340
Artikelnummer	9368188
ISBN (Elektronisk)	978-1-7281-5301-8
DOI	https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9368188
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-ECCEAsia48364.2020.9368188

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Citationsformater

Wu, W., Zhao, Z., Blaabjerg, F., & Chung, H. (2020). A Novel Method to Identify the "Trouble Maker" of Internal Instability in Multi-paralleled Inverters System. I Proceedings of the 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia) (s. 3335-3340). Artikel 9368188 IEEE. https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9368188

@inproceedings{f7117d90941e4236b511fa89251bda46,

title = "A Novel Method to Identify the {"}Trouble Maker{"} of Internal Instability in Multi-paralleled Inverters System",

abstract = "Instability in multi-paralleled LCL-filtered grid-connected inverters system always presents that each inverter is unstable due to the coupling of grid impedance. During stability analysis of multi-paralleled inverters system, which inverter or inverters ({"}trouble maker or makers{"}) contributes or contribute instability to whole system is rarely studied. In this paper, a novel identification method is proposed to exactly judge the {"}trouble maker or makers{"} of instability in a multi-paralleled inverters system, based on the comparison result between the root mean square (RMS) value of harmonic voltage in the common coupling point (PCC) and the one across the filter capacitor. The simulation and experimental results are provided for verification.",

keywords = "Multi-paralleled inverters, internal instability, instability contribution, identification method",

author = "Weimin Wu and Zhijun Zhao and Frede Blaabjerg and Henry Chung",

year = "2020",

month = nov,

doi = "10.1109/IPEMC-ECCEAsia48364.2020.9368188",

language = "English",

pages = "3335--3340",

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",

}

Wu, W, Zhao, Z, Blaabjerg, F & Chung, H 2020, A Novel Method to Identify the "Trouble Maker" of Internal Instability in Multi-paralleled Inverters System. i Proceedings of the 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia)., 9368188, IEEE, s. 3335-3340, 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia, Nanjing, Kina, 29/11/2020. https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9368188

A Novel Method to Identify the "Trouble Maker" of Internal Instability in Multi-paralleled Inverters System. / Wu, Weimin; Zhao, Zhijun; Blaabjerg, Frede et al.
Proceedings of the 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia). IEEE, 2020. s. 3335-3340 9368188.

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

TY - GEN

T1 - A Novel Method to Identify the "Trouble Maker" of Internal Instability in Multi-paralleled Inverters System

AU - Wu, Weimin

AU - Zhao, Zhijun

AU - Blaabjerg, Frede

AU - Chung, Henry

PY - 2020/11

Y1 - 2020/11

N2 - Instability in multi-paralleled LCL-filtered grid-connected inverters system always presents that each inverter is unstable due to the coupling of grid impedance. During stability analysis of multi-paralleled inverters system, which inverter or inverters ("trouble maker or makers") contributes or contribute instability to whole system is rarely studied. In this paper, a novel identification method is proposed to exactly judge the "trouble maker or makers" of instability in a multi-paralleled inverters system, based on the comparison result between the root mean square (RMS) value of harmonic voltage in the common coupling point (PCC) and the one across the filter capacitor. The simulation and experimental results are provided for verification.

AB - Instability in multi-paralleled LCL-filtered grid-connected inverters system always presents that each inverter is unstable due to the coupling of grid impedance. During stability analysis of multi-paralleled inverters system, which inverter or inverters ("trouble maker or makers") contributes or contribute instability to whole system is rarely studied. In this paper, a novel identification method is proposed to exactly judge the "trouble maker or makers" of instability in a multi-paralleled inverters system, based on the comparison result between the root mean square (RMS) value of harmonic voltage in the common coupling point (PCC) and the one across the filter capacitor. The simulation and experimental results are provided for verification.

KW - Multi-paralleled inverters

KW - internal instability

KW - instability contribution

KW - identification method

U2 - 10.1109/IPEMC-ECCEAsia48364.2020.9368188

DO - 10.1109/IPEMC-ECCEAsia48364.2020.9368188

M3 - Article in proceeding

SP - 3335

EP - 3340

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 -

A Novel Method to Identify the "Trouble Maker" of Internal Instability in Multi-paralleled Inverters System

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