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

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

12 Citations (Scopus)

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
Publication status	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

Free Keywords

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

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering
Renewable Energy, Sustainability and the Environment
Control and Optimization

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{0e27e2c7afa54cc3ab45baa4d41e2a1f,

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 = "English",

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

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

pages = "3489--3495",

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

address = "United States",

}

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/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

UR - https://www.scopus.com/pages/publications/85041439874

U2 - 10.1109/ECCE.2017.8096623

DO - 10.1109/ECCE.2017.8096623

M3 - Conference contribution

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

Free Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this