Seamless Transition Control for Modular Multilevel Converters When Inserting a Cold-Reserve Redundant Submodule

Binbin Li; Yi Zhang; Rongfeng Yang; Rong Xu; Dianguo Xu; Wei Wang

doi:10.1109/TPEL.2015.2392778

Seamless Transition Control for Modular Multilevel Converters When Inserting a Cold-Reserve Redundant Submodule

Binbin Li
, Yi Zhang
, Rongfeng Yang
, Rong Xu
, Dianguo Xu
, Wei Wang

School of Electrical Engineering and Automation, Harbin Institute of Technology

Research output: Contribution to journal › Letter › peer-review

113 Scopus citations

Abstract

Redundant submodules (SMs) are always required to ensure the reliability of the modular multilevel converter (MMC). In this letter, a new control method for MMC is proposed to seamlessly ride through the period when bypassing a faulty SM and inserting a redundant SM. With the proposed method, the redundant SMs can be arranged in cold reserve mode so as to reduce the conduction losses, and when faced with SM failures, bypass of the faulty SM and insertion of the redundant SM will incur no inrush current problems. Besides, the capacitor of the newly inserted SM can get linearly charged. Validity of the proposed control method is verified experimentally based on a single-phase MMC prototype.

Original language	English
Article number	7010946
Pages (from-to)	4052-4057
Number of pages	6
Journal	IEEE Transactions on Power Electronics
Volume	30
Issue number	8
DOIs	https://doi.org/10.1109/TPEL.2015.2392778
State	Published - Aug 2015
Externally published	Yes

Keywords

Cold reserve
modular multilevel converter (MMC)
redundancy
seamless transition
submodule (SM)

Access to Document

10.1109/TPEL.2015.2392778

Cite this

@article{aa1fc9a4fa194acca97889e985b9181b,

title = "Seamless Transition Control for Modular Multilevel Converters When Inserting a Cold-Reserve Redundant Submodule",

abstract = "Redundant submodules (SMs) are always required to ensure the reliability of the modular multilevel converter (MMC). In this letter, a new control method for MMC is proposed to seamlessly ride through the period when bypassing a faulty SM and inserting a redundant SM. With the proposed method, the redundant SMs can be arranged in cold reserve mode so as to reduce the conduction losses, and when faced with SM failures, bypass of the faulty SM and insertion of the redundant SM will incur no inrush current problems. Besides, the capacitor of the newly inserted SM can get linearly charged. Validity of the proposed control method is verified experimentally based on a single-phase MMC prototype.",

keywords = "Cold reserve, modular multilevel converter (MMC), redundancy, seamless transition, submodule (SM)",

author = "Binbin Li and Yi Zhang and Rongfeng Yang and Rong Xu and Dianguo Xu and Wei Wang",

note = "Publisher Copyright: {\textcopyright} 1986-2012 IEEE.",

year = "2015",

month = aug,

doi = "10.1109/TPEL.2015.2392778",

language = "英语",

volume = "30",

pages = "4052--4057",

journal = "IEEE Transactions on Power Electronics",

issn = "0885-8993",

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

number = "8",

}

TY - JOUR

T1 - Seamless Transition Control for Modular Multilevel Converters When Inserting a Cold-Reserve Redundant Submodule

AU - Li, Binbin

AU - Zhang, Yi

AU - Yang, Rongfeng

AU - Xu, Rong

AU - Xu, Dianguo

AU - Wang, Wei

PY - 2015/8

Y1 - 2015/8

N2 - Redundant submodules (SMs) are always required to ensure the reliability of the modular multilevel converter (MMC). In this letter, a new control method for MMC is proposed to seamlessly ride through the period when bypassing a faulty SM and inserting a redundant SM. With the proposed method, the redundant SMs can be arranged in cold reserve mode so as to reduce the conduction losses, and when faced with SM failures, bypass of the faulty SM and insertion of the redundant SM will incur no inrush current problems. Besides, the capacitor of the newly inserted SM can get linearly charged. Validity of the proposed control method is verified experimentally based on a single-phase MMC prototype.

AB - Redundant submodules (SMs) are always required to ensure the reliability of the modular multilevel converter (MMC). In this letter, a new control method for MMC is proposed to seamlessly ride through the period when bypassing a faulty SM and inserting a redundant SM. With the proposed method, the redundant SMs can be arranged in cold reserve mode so as to reduce the conduction losses, and when faced with SM failures, bypass of the faulty SM and insertion of the redundant SM will incur no inrush current problems. Besides, the capacitor of the newly inserted SM can get linearly charged. Validity of the proposed control method is verified experimentally based on a single-phase MMC prototype.

KW - Cold reserve

KW - modular multilevel converter (MMC)

KW - redundancy

KW - seamless transition

KW - submodule (SM)

UR - https://www.scopus.com/pages/publications/84925298758

U2 - 10.1109/TPEL.2015.2392778

DO - 10.1109/TPEL.2015.2392778

M3 - 快报

AN - SCOPUS:84925298758

SN - 0885-8993

VL - 30

SP - 4052

EP - 4057

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 8

M1 - 7010946

ER -

Seamless Transition Control for Modular Multilevel Converters When Inserting a Cold-Reserve Redundant Submodule

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this