Wear-Out Failure Analysis of Solar Optiverter Operating with 60- and 72-Cell Si Crystalline PV Modules

Elizaveta Liivik; Andrii Chub; Ariya Sangwongwanich; Yanfeng Shen; Dmitri Vinnikov; Frede Blaabjerg

doi:10.1109/IECON.2018.8592925

Wear-Out Failure Analysis of Solar Optiverter Operating with 60- and 72-Cell Si Crystalline PV Modules

Elizaveta Liivik, Andrii Chub, Ariya Sangwongwanich, Yanfeng Shen, Dmitri Vinnikov, Frede Blaabjerg

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

4 Citations (Scopus)

Abstract

A new concept of shade-tolerant PV microinverter named Optiverter is capable of operating with both 60- and 72-cell PV modules. In order to ensure highly reliable operation of the Optiverter, this paper analyzes the wear-out failures of the Optiverter considering both 60- and 72- cells Si crystalline PV modules. The lifetime evaluation of the Optiverter also considers the impact of module degradation rates and different mission profiles into consideration. The evaluation results reveal that operating the Optiverter with a high-power PV module (i.e., 72-cell) results in a lower reliability performance compared with 60-cell PV module. This is mainly due to the higher power and thermal loadings of the power devices in the Optiverter with a 72-cell PV module. When considering the effect of module degradation, using the 72-cell PV module also lead to a higher deviation in the reliability prediction compared to the case without considering the degradation.

Original language	English
Title of host publication	Proceedings of IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society
Number of pages	7
Publisher	IEEE Press
Publication date	Oct 2018
Pages	6134-6140
ISBN (Print)	978-1-5090-6685-8
ISBN (Electronic)	978-1-5090-6684-1
DOIs	https://doi.org/10.1109/IECON.2018.8592925
Publication status	Published - Oct 2018
Event	44th Annual Conference of the IEEE Industrial Electronics Society - Omni Shoreham Hotel, Washington, United States Duration: 21 Oct 2018 → 23 Oct 2018 http://www.iecon2018.org/

Conference

Conference	44th Annual Conference of the IEEE Industrial Electronics Society
Location	Omni Shoreham Hotel
Country/Territory	United States
City	Washington
Period	21/10/2018 → 23/10/2018
Internet address	http://www.iecon2018.org/

Keywords

Wear-out failure
optiverter
photovoltaic module
reliability

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https://ieeexplore.ieee.org/document/8592925

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@inproceedings{07bca8badd4446668d5c8986aaf617c1,

title = "Wear-Out Failure Analysis of Solar Optiverter Operating with 60- and 72-Cell Si Crystalline PV Modules",

abstract = "A new concept of shade-tolerant PV microinverter named Optiverter is capable of operating with both 60- and 72-cell PV modules. In order to ensure highly reliable operation of the Optiverter, this paper analyzes the wear-out failures of the Optiverter considering both 60- and 72- cells Si crystalline PV modules. The lifetime evaluation of the Optiverter also considers the impact of module degradation rates and different mission profiles into consideration. The evaluation results reveal that operating the Optiverter with a high-power PV module (i.e., 72-cell) results in a lower reliability performance compared with 60-cell PV module. This is mainly due to the higher power and thermal loadings of the power devices in the Optiverter with a 72-cell PV module. When considering the effect of module degradation, using the 72-cell PV module also lead to a higher deviation in the reliability prediction compared to the case without considering the degradation.",

keywords = "Wear-out failure, optiverter, photovoltaic module, reliability",

author = "Elizaveta Liivik and Andrii Chub and Ariya Sangwongwanich and Yanfeng Shen and Dmitri Vinnikov and Frede Blaabjerg",

year = "2018",

month = oct,

doi = "10.1109/IECON.2018.8592925",

language = "English",

isbn = "978-1-5090-6685-8",

pages = "6134--6140",

booktitle = "Proceedings of IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society",

publisher = "IEEE Press",

note = "44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018 ; Conference date: 21-10-2018 Through 23-10-2018",

url = "http://www.iecon2018.org/",

}

Liivik, E, Chub, A, Sangwongwanich, A, Shen, Y, Vinnikov, D & Blaabjerg, F 2018, Wear-Out Failure Analysis of Solar Optiverter Operating with 60- and 72-Cell Si Crystalline PV Modules. in Proceedings of IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society. IEEE Press, pp. 6134-6140, 44th Annual Conference of the IEEE Industrial Electronics Society, Washington, District of Columbia, United States, 21/10/2018. https://doi.org/10.1109/IECON.2018.8592925

Wear-Out Failure Analysis of Solar Optiverter Operating with 60- and 72-Cell Si Crystalline PV Modules. / Liivik, Elizaveta; Chub, Andrii; Sangwongwanich, Ariya et al.
Proceedings of IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society. IEEE Press, 2018. p. 6134-6140.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

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T1 - Wear-Out Failure Analysis of Solar Optiverter Operating with 60- and 72-Cell Si Crystalline PV Modules

AU - Liivik, Elizaveta

AU - Chub, Andrii

AU - Sangwongwanich, Ariya

AU - Shen, Yanfeng

AU - Vinnikov, Dmitri

AU - Blaabjerg, Frede

PY - 2018/10

Y1 - 2018/10

N2 - A new concept of shade-tolerant PV microinverter named Optiverter is capable of operating with both 60- and 72-cell PV modules. In order to ensure highly reliable operation of the Optiverter, this paper analyzes the wear-out failures of the Optiverter considering both 60- and 72- cells Si crystalline PV modules. The lifetime evaluation of the Optiverter also considers the impact of module degradation rates and different mission profiles into consideration. The evaluation results reveal that operating the Optiverter with a high-power PV module (i.e., 72-cell) results in a lower reliability performance compared with 60-cell PV module. This is mainly due to the higher power and thermal loadings of the power devices in the Optiverter with a 72-cell PV module. When considering the effect of module degradation, using the 72-cell PV module also lead to a higher deviation in the reliability prediction compared to the case without considering the degradation.

AB - A new concept of shade-tolerant PV microinverter named Optiverter is capable of operating with both 60- and 72-cell PV modules. In order to ensure highly reliable operation of the Optiverter, this paper analyzes the wear-out failures of the Optiverter considering both 60- and 72- cells Si crystalline PV modules. The lifetime evaluation of the Optiverter also considers the impact of module degradation rates and different mission profiles into consideration. The evaluation results reveal that operating the Optiverter with a high-power PV module (i.e., 72-cell) results in a lower reliability performance compared with 60-cell PV module. This is mainly due to the higher power and thermal loadings of the power devices in the Optiverter with a 72-cell PV module. When considering the effect of module degradation, using the 72-cell PV module also lead to a higher deviation in the reliability prediction compared to the case without considering the degradation.

KW - Wear-out failure

KW - optiverter

KW - photovoltaic module

KW - reliability

U2 - 10.1109/IECON.2018.8592925

DO - 10.1109/IECON.2018.8592925

M3 - Article in proceeding

SN - 978-1-5090-6685-8

SP - 6134

EP - 6140

BT - Proceedings of IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society

PB - IEEE Press

T2 - 44th Annual Conference of the IEEE Industrial Electronics Society

Y2 - 21 October 2018 through 23 October 2018

ER -

Wear-Out Failure Analysis of Solar Optiverter Operating with 60- and 72-Cell Si Crystalline PV Modules

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