Topology and control strategy for accelerated lifetime test setup of DC-link capacitor of wind turbine converter

Youngjong Ko; Holger Jedtberg; Giampaolo Buticchi; Marco Liserre

doi:10.1109/APEC.2016.7468391

Topology and control strategy for accelerated lifetime test setup of DC-link capacitor of wind turbine converter

Youngjong Ko
, Holger Jedtberg
, Giampaolo Buticchi
, Marco Liserre

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

10 Citations (Scopus)

Abstract

Back-to-back converters for wind turbine systems (WTS) feature capacitors in the DC-link to maintain a stable DC-link voltage and to decouple the generator from the grid. Electrolytic and film capacitors can be chosen to this purpose. Long-term field experience and recorded failure data reveal that capacitor failures are one of the main reasons for the downtime of WTS. The ripple current accelerates the wear-out of the capacitors, which is strongly dependent on the mission profile of the system. Therefore, it becomes important to estimate the useful lifetime of a capacitor as a function of the ripple current. In this paper, aging characteristics of electrolytic capacitors are described, and a power converter topology and its control strategy are designed to perform accelerated lifetime tests. The voltage and ripple current of the capacitor under test (CUT) can be controlled with low THD to correlate wear-out with ripple.

Original language	English
Title of host publication	2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3629-3636
Number of pages	8
ISBN (Electronic)	9781467383936
DOIs	https://doi.org/10.1109/APEC.2016.7468391
Publication status	Published - 10 May 2016
Externally published	Yes
Event	31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016 - Long Beach, United States Duration: 20 Mar 2016 → 24 Mar 2016

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume	2016-May

Conference

Conference	31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Country/Territory	United States
City	Long Beach
Period	20/03/16 → 24/03/16

UN SDGs

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

SDG 7 Affordable and Clean Energy

Free Keywords

Accelerated lifetime test
Controller design
Electrolytic capacitor
Reliabilty
Wind turbine converter

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/APEC.2016.7468391

Cite this

Ko, Y., Jedtberg, H., Buticchi, G., & Liserre, M. (2016). Topology and control strategy for accelerated lifetime test setup of DC-link capacitor of wind turbine converter. In 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016 (pp. 3629-3636). Article 7468391 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2016-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2016.7468391

Ko, Youngjong ; Jedtberg, Holger ; Buticchi, Giampaolo et al. / Topology and control strategy for accelerated lifetime test setup of DC-link capacitor of wind turbine converter. 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 3629-3636 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

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title = "Topology and control strategy for accelerated lifetime test setup of DC-link capacitor of wind turbine converter",

abstract = "Back-to-back converters for wind turbine systems (WTS) feature capacitors in the DC-link to maintain a stable DC-link voltage and to decouple the generator from the grid. Electrolytic and film capacitors can be chosen to this purpose. Long-term field experience and recorded failure data reveal that capacitor failures are one of the main reasons for the downtime of WTS. The ripple current accelerates the wear-out of the capacitors, which is strongly dependent on the mission profile of the system. Therefore, it becomes important to estimate the useful lifetime of a capacitor as a function of the ripple current. In this paper, aging characteristics of electrolytic capacitors are described, and a power converter topology and its control strategy are designed to perform accelerated lifetime tests. The voltage and ripple current of the capacitor under test (CUT) can be controlled with low THD to correlate wear-out with ripple.",

keywords = "Accelerated lifetime test, Controller design, Electrolytic capacitor, Reliabilty, Wind turbine converter",

author = "Youngjong Ko and Holger Jedtberg and Giampaolo Buticchi and Marco Liserre",

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year = "2016",

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doi = "10.1109/APEC.2016.7468391",

language = "English",

series = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",

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Ko, Y, Jedtberg, H, Buticchi, G & Liserre, M 2016, Topology and control strategy for accelerated lifetime test setup of DC-link capacitor of wind turbine converter. in 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016., 7468391, Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, vol. 2016-May, Institute of Electrical and Electronics Engineers Inc., pp. 3629-3636, 31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016, Long Beach, United States, 20/03/16. https://doi.org/10.1109/APEC.2016.7468391

Topology and control strategy for accelerated lifetime test setup of DC-link capacitor of wind turbine converter. / Ko, Youngjong; Jedtberg, Holger; Buticchi, Giampaolo et al.
2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 3629-3636 7468391 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2016-May).

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

TY - GEN

T1 - Topology and control strategy for accelerated lifetime test setup of DC-link capacitor of wind turbine converter

AU - Ko, Youngjong

AU - Jedtberg, Holger

AU - Buticchi, Giampaolo

AU - Liserre, Marco

PY - 2016/5/10

Y1 - 2016/5/10

N2 - Back-to-back converters for wind turbine systems (WTS) feature capacitors in the DC-link to maintain a stable DC-link voltage and to decouple the generator from the grid. Electrolytic and film capacitors can be chosen to this purpose. Long-term field experience and recorded failure data reveal that capacitor failures are one of the main reasons for the downtime of WTS. The ripple current accelerates the wear-out of the capacitors, which is strongly dependent on the mission profile of the system. Therefore, it becomes important to estimate the useful lifetime of a capacitor as a function of the ripple current. In this paper, aging characteristics of electrolytic capacitors are described, and a power converter topology and its control strategy are designed to perform accelerated lifetime tests. The voltage and ripple current of the capacitor under test (CUT) can be controlled with low THD to correlate wear-out with ripple.

AB - Back-to-back converters for wind turbine systems (WTS) feature capacitors in the DC-link to maintain a stable DC-link voltage and to decouple the generator from the grid. Electrolytic and film capacitors can be chosen to this purpose. Long-term field experience and recorded failure data reveal that capacitor failures are one of the main reasons for the downtime of WTS. The ripple current accelerates the wear-out of the capacitors, which is strongly dependent on the mission profile of the system. Therefore, it becomes important to estimate the useful lifetime of a capacitor as a function of the ripple current. In this paper, aging characteristics of electrolytic capacitors are described, and a power converter topology and its control strategy are designed to perform accelerated lifetime tests. The voltage and ripple current of the capacitor under test (CUT) can be controlled with low THD to correlate wear-out with ripple.

KW - Accelerated lifetime test

KW - Controller design

KW - Electrolytic capacitor

KW - Reliabilty

KW - Wind turbine converter

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ER -

Ko Y, Jedtberg H, Buticchi G, Liserre M. Topology and control strategy for accelerated lifetime test setup of DC-link capacitor of wind turbine converter. In 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 3629-3636. 7468391. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). doi: 10.1109/APEC.2016.7468391

Topology and control strategy for accelerated lifetime test setup of DC-link capacitor of wind turbine converter

Abstract

Publication series

Conference

UN SDGs

Free Keywords

ASJC Scopus subject areas

Access to Document

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