Impacts of rotor current control targets on DC-link Capacitor Lifetime in DFIG-based wind turbine during Grid Voltage Unbalance

Holger Jedtberg; Marius Langwasser; Rongwu Zhu; Giampaolo Buticchi; Marco Liserre

doi:10.1109/ECCE.2017.8096623

Impacts of rotor current control targets on DC-link Capacitor Lifetime in DFIG-based wind turbine during Grid Voltage Unbalance

Holger Jedtberg
, Marius Langwasser
, Rongwu Zhu
, Giampaolo Buticchi
, Marco Liserre

Kiel University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

12 Scopus citations

Abstract

In doubly-fed induction generator (DFIG)-based wind turbines, the DC-link capacitor of the back-to-back (B2B) converters is one of the components that tend to fail most often. The equivalent resistance of electrolytic capacitors is frequency dependent and presents higher values in the low-frequency range. Therefore, additional low-frequency ripple current components will stress the DC-link capacitor and reduce its lifetime. Under unbalanced grid voltage conditions, the conventional vector control strategy of the rotor side converter may be replaced by flexible multi-objective control strategies, leading to different low-frequency harmonics in DC-link capacitor current. Therefore, in this paper the differences between the different control targets with respect to overall RMS current, additional low-frequency ripple current and temperature are analyzed by means of simulations for a 2 MW DFIG wind turbine.

Original language	English
Title of host publication	2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3489-3495
Number of pages	7
ISBN (Electronic)	9781509029983
DOIs	https://doi.org/10.1109/ECCE.2017.8096623
State	Published - 3 Nov 2017
Externally published	Yes
Event	9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States Duration: 1 Oct 2017 → 5 Oct 2017

Publication series

Name	2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Volume	2017-January

Conference

Conference	9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Country/Territory	United States
City	Cincinnati
Period	1/10/17 → 5/10/17

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

DC-link capacitor.
Doubly-fed induction generator
Grid faults
Lifetime estimation

Access to Document

10.1109/ECCE.2017.8096623

Cite this

Jedtberg, H., Langwasser, M., Zhu, R., Buticchi, G., & Liserre, M. (2017). Impacts of rotor current control targets on DC-link Capacitor Lifetime in DFIG-based wind turbine during Grid Voltage Unbalance. In 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017 (pp. 3489-3495). Article 8096623 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017; Vol. 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2017.8096623

Jedtberg, Holger ; Langwasser, Marius ; Zhu, Rongwu et al. / Impacts of rotor current control targets on DC-link Capacitor Lifetime in DFIG-based wind turbine during Grid Voltage Unbalance. 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 3489-3495 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017).

@inproceedings{7751bf4a73e4497f90835530c6c98086,

title = "Impacts of rotor current control targets on DC-link Capacitor Lifetime in DFIG-based wind turbine during Grid Voltage Unbalance",

abstract = "In doubly-fed induction generator (DFIG)-based wind turbines, the DC-link capacitor of the back-to-back (B2B) converters is one of the components that tend to fail most often. The equivalent resistance of electrolytic capacitors is frequency dependent and presents higher values in the low-frequency range. Therefore, additional low-frequency ripple current components will stress the DC-link capacitor and reduce its lifetime. Under unbalanced grid voltage conditions, the conventional vector control strategy of the rotor side converter may be replaced by flexible multi-objective control strategies, leading to different low-frequency harmonics in DC-link capacitor current. Therefore, in this paper the differences between the different control targets with respect to overall RMS current, additional low-frequency ripple current and temperature are analyzed by means of simulations for a 2 MW DFIG wind turbine.",

keywords = "DC-link capacitor., Doubly-fed induction generator, Grid faults, Lifetime estimation",

author = "Holger Jedtberg and Marius Langwasser and Rongwu Zhu and Giampaolo Buticchi and Marco Liserre",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 ; Conference date: 01-10-2017 Through 05-10-2017",

year = "2017",

month = nov,

day = "3",

doi = "10.1109/ECCE.2017.8096623",

language = "英语",

series = "2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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booktitle = "2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017",

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}

Jedtberg, H, Langwasser, M, Zhu, R, Buticchi, G & Liserre, M 2017, Impacts of rotor current control targets on DC-link Capacitor Lifetime in DFIG-based wind turbine during Grid Voltage Unbalance. in 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017., 8096623, 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017, vol. 2017-January, Institute of Electrical and Electronics Engineers Inc., pp. 3489-3495, 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017, Cincinnati, United States, 1/10/17. https://doi.org/10.1109/ECCE.2017.8096623

Impacts of rotor current control targets on DC-link Capacitor Lifetime in DFIG-based wind turbine during Grid Voltage Unbalance. / Jedtberg, Holger; Langwasser, Marius; Zhu, Rongwu et al.
2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 3489-3495 8096623 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017; Vol. 2017-January).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Impacts of rotor current control targets on DC-link Capacitor Lifetime in DFIG-based wind turbine during Grid Voltage Unbalance

AU - Jedtberg, Holger

AU - Langwasser, Marius

AU - Zhu, Rongwu

AU - Buticchi, Giampaolo

AU - Liserre, Marco

PY - 2017/11/3

Y1 - 2017/11/3

N2 - In doubly-fed induction generator (DFIG)-based wind turbines, the DC-link capacitor of the back-to-back (B2B) converters is one of the components that tend to fail most often. The equivalent resistance of electrolytic capacitors is frequency dependent and presents higher values in the low-frequency range. Therefore, additional low-frequency ripple current components will stress the DC-link capacitor and reduce its lifetime. Under unbalanced grid voltage conditions, the conventional vector control strategy of the rotor side converter may be replaced by flexible multi-objective control strategies, leading to different low-frequency harmonics in DC-link capacitor current. Therefore, in this paper the differences between the different control targets with respect to overall RMS current, additional low-frequency ripple current and temperature are analyzed by means of simulations for a 2 MW DFIG wind turbine.

AB - In doubly-fed induction generator (DFIG)-based wind turbines, the DC-link capacitor of the back-to-back (B2B) converters is one of the components that tend to fail most often. The equivalent resistance of electrolytic capacitors is frequency dependent and presents higher values in the low-frequency range. Therefore, additional low-frequency ripple current components will stress the DC-link capacitor and reduce its lifetime. Under unbalanced grid voltage conditions, the conventional vector control strategy of the rotor side converter may be replaced by flexible multi-objective control strategies, leading to different low-frequency harmonics in DC-link capacitor current. Therefore, in this paper the differences between the different control targets with respect to overall RMS current, additional low-frequency ripple current and temperature are analyzed by means of simulations for a 2 MW DFIG wind turbine.

KW - DC-link capacitor.

KW - Doubly-fed induction generator

KW - Grid faults

KW - Lifetime estimation

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DO - 10.1109/ECCE.2017.8096623

M3 - 会议稿件

AN - SCOPUS:85041439874

T3 - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017

SP - 3489

EP - 3495

BT - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017

Y2 - 1 October 2017 through 5 October 2017

ER -

Jedtberg H, Langwasser M, Zhu R, Buticchi G, Liserre M. Impacts of rotor current control targets on DC-link Capacitor Lifetime in DFIG-based wind turbine during Grid Voltage Unbalance. In 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 3489-3495. 8096623. (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017). doi: 10.1109/ECCE.2017.8096623

Impacts of rotor current control targets on DC-link Capacitor Lifetime in DFIG-based wind turbine during Grid Voltage Unbalance

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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