A high control bandwidth design method for aalborg inverter under weak grid condition

Weimin Wu; Cong Zhou; Houqin Wang; Min Huang; Frede Blaabjerg; Henry Shu-Hung Chung

doi:10.1109/ECCE.2017.8095845

A high control bandwidth design method for aalborg inverter under weak grid condition

Weimin Wu, Cong Zhou, Houqin Wang, Min Huang, Frede Blaabjerg, Henry Shu-Hung Chung

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

3 Citationer (Scopus)

Abstract

Aalborg Inverter is a kind of high efficient Buck-Boost inverter. Since it may work in “Buck-Boost” mode, the control bandwidth should be high enough to ensure a good performance under any grid condition. However, during the “Boost” operation, the control bandwidth depends much on the grid impedance if the crossover frequency is traditionally chosen lower than the characteristic frequency of system. Thus, the bandwidth cannot satisfy the high bandwidth requirement in the weak grid state. In this paper, a new high control bandwidth design method for Aalborg Inverter is proposed. With the proposed method, the bandwidth and the phase margin of the system can reach to 7 kHz and 36 degree respectively, when the grid impedance changes from 0 to 4.8 mH. Meanwhile, no extra damping measure needs to stabilize the system. Simulation and experimental results on an 110 V/ 1 kW prototype verify the proposed design well.

Originalsprog	Engelsk
Titel	Proceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE)
Antal sider	7
Forlag	IEEE Press
Publikationsdato	okt. 2017
Sider	645-61
ISBN (Elektronisk)	978-1-5090-2998-3
DOI	https://doi.org/10.1109/ECCE.2017.8095845
Status	Udgivet - okt. 2017
Begivenhed	2017 IEEE Energy Conversion Congress and Exposition (ECCE) - Cincinnati, Ohio, USA Varighed: 1 okt. 2017 → 5 okt. 2017

Konference

Konference	2017 IEEE Energy Conversion Congress and Exposition (ECCE)
Land/Område	USA
By	Cincinnati, Ohio
Periode	01/10/2017 → 05/10/2017

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10.1109/ECCE.2017.8095845

http://ieeexplore.ieee.org/document/8095845/

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Citationsformater

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title = "A high control bandwidth design method for aalborg inverter under weak grid condition",

abstract = "Aalborg Inverter is a kind of high efficient Buck-Boost inverter. Since it may work in “Buck-Boost” mode, the control bandwidth should be high enough to ensure a good performance under any grid condition. However, during the “Boost” operation, the control bandwidth depends much on the grid impedance if the crossover frequency is traditionally chosen lower than the characteristic frequency of system. Thus, the bandwidth cannot satisfy the high bandwidth requirement in the weak grid state. In this paper, a new high control bandwidth design method for Aalborg Inverter is proposed. With the proposed method, the bandwidth and the phase margin of the system can reach to 7 kHz and 36 degree respectively, when the grid impedance changes from 0 to 4.8 mH. Meanwhile, no extra damping measure needs to stabilize the system. Simulation and experimental results on an 110 V/ 1 kW prototype verify the proposed design well.",

keywords = "Buck-Boost, Crossover frequency, Characteristic frequency, Bandwidth",

author = "Weimin Wu and Cong Zhou and Houqin Wang and Min Huang and Frede Blaabjerg and Chung, {Henry Shu-Hung}",

year = "2017",

month = oct,

doi = "10.1109/ECCE.2017.8095845",

language = "English",

pages = "645--61",

booktitle = "Proceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE)",

publisher = "IEEE Press",

note = "2017 IEEE Energy Conversion Congress and Exposition (ECCE) ; Conference date: 01-10-2017 Through 05-10-2017",

}

Wu, W, Zhou, C, Wang, H, Huang, M, Blaabjerg, F & Chung, HS-H 2017, A high control bandwidth design method for aalborg inverter under weak grid condition. i Proceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Press, s. 645-61, 2017 IEEE Energy Conversion Congress and Exposition (ECCE), Cincinnati, Ohio, USA, 01/10/2017. https://doi.org/10.1109/ECCE.2017.8095845

TY - GEN

T1 - A high control bandwidth design method for aalborg inverter under weak grid condition

AU - Wu, Weimin

AU - Zhou, Cong

AU - Wang, Houqin

AU - Huang, Min

AU - Blaabjerg, Frede

AU - Chung, Henry Shu-Hung

PY - 2017/10

Y1 - 2017/10

N2 - Aalborg Inverter is a kind of high efficient Buck-Boost inverter. Since it may work in “Buck-Boost” mode, the control bandwidth should be high enough to ensure a good performance under any grid condition. However, during the “Boost” operation, the control bandwidth depends much on the grid impedance if the crossover frequency is traditionally chosen lower than the characteristic frequency of system. Thus, the bandwidth cannot satisfy the high bandwidth requirement in the weak grid state. In this paper, a new high control bandwidth design method for Aalborg Inverter is proposed. With the proposed method, the bandwidth and the phase margin of the system can reach to 7 kHz and 36 degree respectively, when the grid impedance changes from 0 to 4.8 mH. Meanwhile, no extra damping measure needs to stabilize the system. Simulation and experimental results on an 110 V/ 1 kW prototype verify the proposed design well.

AB - Aalborg Inverter is a kind of high efficient Buck-Boost inverter. Since it may work in “Buck-Boost” mode, the control bandwidth should be high enough to ensure a good performance under any grid condition. However, during the “Boost” operation, the control bandwidth depends much on the grid impedance if the crossover frequency is traditionally chosen lower than the characteristic frequency of system. Thus, the bandwidth cannot satisfy the high bandwidth requirement in the weak grid state. In this paper, a new high control bandwidth design method for Aalborg Inverter is proposed. With the proposed method, the bandwidth and the phase margin of the system can reach to 7 kHz and 36 degree respectively, when the grid impedance changes from 0 to 4.8 mH. Meanwhile, no extra damping measure needs to stabilize the system. Simulation and experimental results on an 110 V/ 1 kW prototype verify the proposed design well.

KW - Buck-Boost

KW - Crossover frequency

KW - Characteristic frequency

KW - Bandwidth

U2 - 10.1109/ECCE.2017.8095845

DO - 10.1109/ECCE.2017.8095845

M3 - Article in proceeding

SP - 645

EP - 661

BT - Proceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE)

PB - IEEE Press

T2 - 2017 IEEE Energy Conversion Congress and Exposition (ECCE)

Y2 - 1 October 2017 through 5 October 2017

ER -

A high control bandwidth design method for aalborg inverter under weak grid condition

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