Circulating current control for parallel interleaved VSCs connected in whiffletree configuration

L. Bede; G. Gohil; M. Ciobotaru; T. Kerekes; R. Teodorescu; V. G. Agelidis

doi:10.1109/PEDG.2016.7527091

Circulating current control for parallel interleaved VSCs connected in whiffletree configuration

L. Bede, G. Gohil, M. Ciobotaru, T. Kerekes, R. Teodorescu, V. G. Agelidis

AAU Energy

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

1 Citation (Scopus)

Abstract

This paper presents a Proportional Resonant (PR) based circulating current controller for four parallel interleaved Voltage Source Converters (VSCs). Interleaving the carrier signals will cause a switching frequency circulating current to flow between the VSCs. Therefore, to suppress these circulating currents the VSCs are interconnected through Coupled Inductors (CIs), which form a whiffletree configuration, and they are used to suppress the switching frequency circulating current. On the other hand, the CIs are highly sensitive to fundamental frequency circulating currents, which may saturate them. Hence, a circulating current controller is required, which effectively controls the fundamental component of the circulating current. Furthermore, the circulating current is sampled using a special technique, which does not require any additional. The effectiveness of the design methodology and the performance of the circulating current controller are verified by simulation and experimental results as well.

Original language	English
Title of host publication	2016 IEEE 7th International Symposium On Power Electronics for Distributed Generation Systems (PEDG)
Number of pages	6
Publisher	IEEE Press
Publication date	Jun 2016
ISBN (Print)	978-1-4673-8616-6
ISBN (Electronic)	978-1-4673-8617-3
DOIs	https://doi.org/10.1109/PEDG.2016.7527091
Publication status	Published - Jun 2016
Event	the 7th International Symposium on Power Electronics for Distributed Generation Systems (PEDG 2016) - Vancouver, Canada Duration: 27 Jun 2016 → 30 Jun 2016

Conference

Conference	the 7th International Symposium on Power Electronics for Distributed Generation Systems (PEDG 2016)
Country/Territory	Canada
City	Vancouver
Period	27/06/2016 → 30/06/2016

Keywords

Current control
Frequency control
Inductors
Power conversion
Switching frequency
Wind turbines
Circulating Current Control
Coupled Inductors
Interleaved VSC
Whiffletree

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@inproceedings{79454d64b20d4f6db4a76e6dc56d324e,

title = "Circulating current control for parallel interleaved VSCs connected in whiffletree configuration",

abstract = "This paper presents a Proportional Resonant (PR) based circulating current controller for four parallel interleaved Voltage Source Converters (VSCs). Interleaving the carrier signals will cause a switching frequency circulating current to flow between the VSCs. Therefore, to suppress these circulating currents the VSCs are interconnected through Coupled Inductors (CIs), which form a whiffletree configuration, and they are used to suppress the switching frequency circulating current. On the other hand, the CIs are highly sensitive to fundamental frequency circulating currents, which may saturate them. Hence, a circulating current controller is required, which effectively controls the fundamental component of the circulating current. Furthermore, the circulating current is sampled using a special technique, which does not require any additional. The effectiveness of the design methodology and the performance of the circulating current controller are verified by simulation and experimental results as well.",

keywords = "Current control, Frequency control, Inductors, Power conversion, Switching frequency, Wind turbines, Circulating Current Control, Coupled Inductors, Interleaved VSC, Whiffletree",

author = "L. Bede and G. Gohil and M. Ciobotaru and T. Kerekes and R. Teodorescu and Agelidis, {V. G.}",

year = "2016",

month = jun,

doi = "10.1109/PEDG.2016.7527091",

language = "English",

isbn = "978-1-4673-8616-6",

booktitle = "2016 IEEE 7th International Symposium On Power Electronics for Distributed Generation Systems (PEDG)",

publisher = "IEEE Press",

note = "the 7th International Symposium on Power Electronics for Distributed Generation Systems (PEDG 2016) ; Conference date: 27-06-2016 Through 30-06-2016",

}

Bede, L, Gohil, G, Ciobotaru, M, Kerekes, T , Teodorescu, R & Agelidis, VG 2016, Circulating current control for parallel interleaved VSCs connected in whiffletree configuration. in 2016 IEEE 7th International Symposium On Power Electronics for Distributed Generation Systems (PEDG). IEEE Press, the 7th International Symposium on Power Electronics for Distributed Generation Systems (PEDG 2016), Vancouver, Canada, 27/06/2016. https://doi.org/10.1109/PEDG.2016.7527091

Circulating current control for parallel interleaved VSCs connected in whiffletree configuration. / Bede, L.; Gohil, G.; Ciobotaru, M. et al.
2016 IEEE 7th International Symposium On Power Electronics for Distributed Generation Systems (PEDG). IEEE Press, 2016.

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

TY - GEN

T1 - Circulating current control for parallel interleaved VSCs connected in whiffletree configuration

AU - Bede, L.

AU - Gohil, G.

AU - Ciobotaru, M.

AU - Kerekes, T.

AU - Teodorescu, R.

AU - Agelidis, V. G.

PY - 2016/6

Y1 - 2016/6

N2 - This paper presents a Proportional Resonant (PR) based circulating current controller for four parallel interleaved Voltage Source Converters (VSCs). Interleaving the carrier signals will cause a switching frequency circulating current to flow between the VSCs. Therefore, to suppress these circulating currents the VSCs are interconnected through Coupled Inductors (CIs), which form a whiffletree configuration, and they are used to suppress the switching frequency circulating current. On the other hand, the CIs are highly sensitive to fundamental frequency circulating currents, which may saturate them. Hence, a circulating current controller is required, which effectively controls the fundamental component of the circulating current. Furthermore, the circulating current is sampled using a special technique, which does not require any additional. The effectiveness of the design methodology and the performance of the circulating current controller are verified by simulation and experimental results as well.

AB - This paper presents a Proportional Resonant (PR) based circulating current controller for four parallel interleaved Voltage Source Converters (VSCs). Interleaving the carrier signals will cause a switching frequency circulating current to flow between the VSCs. Therefore, to suppress these circulating currents the VSCs are interconnected through Coupled Inductors (CIs), which form a whiffletree configuration, and they are used to suppress the switching frequency circulating current. On the other hand, the CIs are highly sensitive to fundamental frequency circulating currents, which may saturate them. Hence, a circulating current controller is required, which effectively controls the fundamental component of the circulating current. Furthermore, the circulating current is sampled using a special technique, which does not require any additional. The effectiveness of the design methodology and the performance of the circulating current controller are verified by simulation and experimental results as well.

KW - Current control

KW - Frequency control

KW - Inductors

KW - Power conversion

KW - Switching frequency

KW - Wind turbines

KW - Circulating Current Control

KW - Coupled Inductors

KW - Interleaved VSC

KW - Whiffletree

U2 - 10.1109/PEDG.2016.7527091

DO - 10.1109/PEDG.2016.7527091

M3 - Article in proceeding

SN - 978-1-4673-8616-6

BT - 2016 IEEE 7th International Symposium On Power Electronics for Distributed Generation Systems (PEDG)

PB - IEEE Press

T2 - the 7th International Symposium on Power Electronics for Distributed Generation Systems (PEDG 2016)

Y2 - 27 June 2016 through 30 June 2016

ER -

Circulating current control for parallel interleaved VSCs connected in whiffletree configuration

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Keywords

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