Operation of MMC Based Unipolar HVDC under SM Failure

Richa; Abdul R. Beig; Apparao Dekka; R. Jayashree

doi:10.1109/IECON.2019.8927428

Operation of MMC Based Unipolar HVDC under SM Failure

Richa
, Abdul R. Beig
, Apparao Dekka
, R. Jayashree

Electrical Engineering

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

2 Scopus citations

Abstract

HVDC systems are used for bulk power transfer where reliable operation of the system is very important. A novel fault tolerant method under sub module (SM) failure is proposed in which the faulty SMs are bypassed and system is operated with reduced number of SMs using simple phase disposition pulse width modulation (PD-PWM) until the faulty SMs are replaced. The number of levels in the modulation signals for the faulty phase are adjusted depending on the number of faulty SMs in each arm. Once the fault is cleared, the number of levels in modulation signals will revert to normal mode, bringing the MMC to normal operation. This approach provides fault tolerant operation with full power handling capacity without significant performance degradation of the system during fault. Compared to conventional fault tolerant (FT) methods, proposed approach results in fast and simple changes in PWM signals, better efficiency, higher reliability with least number of spare or redundant SM units. The proposed FT strategy is verified through simulation. The simulation results are presented.

Original language	British English
Title of host publication	Proceedings
Subtitle of host publication	IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
Publisher	IEEE Computer Society
Pages	6133-6138
Number of pages	6
ISBN (Electronic)	9781728148786
DOIs	https://doi.org/10.1109/IECON.2019.8927428
State	Published - Oct 2019
Event	45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019 - Lisbon, Portugal Duration: 14 Oct 2019 → 17 Oct 2019

Publication series

Name	IECON Proceedings (Industrial Electronics Conference)
Volume	2019-October

Conference

Conference	45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019
Country/Territory	Portugal
City	Lisbon
Period	14/10/19 → 17/10/19

Keywords

Cascaded H-Bridge Converter (CHB)
High Voltage Direct Current (HVDC)
Modular Multilevel Converter (MMC)
Multi-level Converters
PD-PWM
PSC-PWM
Pulse Width Modulation
SM failure
Voltage Source Converters

UN SDGs

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

Access to Document

10.1109/IECON.2019.8927428

Cite this

Richa, Beig, A. R., Dekka, A., & Jayashree, R. (2019). Operation of MMC Based Unipolar HVDC under SM Failure. In Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society (pp. 6133-6138). Article 8927428 (IECON Proceedings (Industrial Electronics Conference); Vol. 2019-October). IEEE Computer Society. https://doi.org/10.1109/IECON.2019.8927428

@inproceedings{397d886cba4446bab3bb23f3639fa198,

title = "Operation of MMC Based Unipolar HVDC under SM Failure",

abstract = "HVDC systems are used for bulk power transfer where reliable operation of the system is very important. A novel fault tolerant method under sub module (SM) failure is proposed in which the faulty SMs are bypassed and system is operated with reduced number of SMs using simple phase disposition pulse width modulation (PD-PWM) until the faulty SMs are replaced. The number of levels in the modulation signals for the faulty phase are adjusted depending on the number of faulty SMs in each arm. Once the fault is cleared, the number of levels in modulation signals will revert to normal mode, bringing the MMC to normal operation. This approach provides fault tolerant operation with full power handling capacity without significant performance degradation of the system during fault. Compared to conventional fault tolerant (FT) methods, proposed approach results in fast and simple changes in PWM signals, better efficiency, higher reliability with least number of spare or redundant SM units. The proposed FT strategy is verified through simulation. The simulation results are presented.",

keywords = "Cascaded H-Bridge Converter (CHB), High Voltage Direct Current (HVDC), Modular Multilevel Converter (MMC), Multi-level Converters, PD-PWM, PSC-PWM, Pulse Width Modulation, SM failure, Voltage Source Converters",

author = "Richa and Beig, \{Abdul R.\} and Apparao Dekka and R. Jayashree",

note = "Funding Information: Funded by the Khalifa University under the Advanced Power and Energy Center (Award No. RC2 2018-06).. Publisher Copyright: {\textcopyright} 2019 IEEE.; 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019 ; Conference date: 14-10-2019 Through 17-10-2019",

year = "2019",

month = oct,

doi = "10.1109/IECON.2019.8927428",

language = "British English",

series = "IECON Proceedings (Industrial Electronics Conference)",

publisher = "IEEE Computer Society",

pages = "6133--6138",

booktitle = "Proceedings",

address = "United States",

}

Richa, , Beig, AR, Dekka, A & Jayashree, R 2019, Operation of MMC Based Unipolar HVDC under SM Failure. in Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society., 8927428, IECON Proceedings (Industrial Electronics Conference), vol. 2019-October, IEEE Computer Society, pp. 6133-6138, 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019, Lisbon, Portugal, 14/10/19. https://doi.org/10.1109/IECON.2019.8927428

Operation of MMC Based Unipolar HVDC under SM Failure. / Richa, ; Beig, Abdul R.; Dekka, Apparao et al.
Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society, 2019. p. 6133-6138 8927428 (IECON Proceedings (Industrial Electronics Conference); Vol. 2019-October).

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

TY - GEN

T1 - Operation of MMC Based Unipolar HVDC under SM Failure

AU - Richa,

AU - Beig, Abdul R.

AU - Dekka, Apparao

AU - Jayashree, R.

PY - 2019/10

Y1 - 2019/10

N2 - HVDC systems are used for bulk power transfer where reliable operation of the system is very important. A novel fault tolerant method under sub module (SM) failure is proposed in which the faulty SMs are bypassed and system is operated with reduced number of SMs using simple phase disposition pulse width modulation (PD-PWM) until the faulty SMs are replaced. The number of levels in the modulation signals for the faulty phase are adjusted depending on the number of faulty SMs in each arm. Once the fault is cleared, the number of levels in modulation signals will revert to normal mode, bringing the MMC to normal operation. This approach provides fault tolerant operation with full power handling capacity without significant performance degradation of the system during fault. Compared to conventional fault tolerant (FT) methods, proposed approach results in fast and simple changes in PWM signals, better efficiency, higher reliability with least number of spare or redundant SM units. The proposed FT strategy is verified through simulation. The simulation results are presented.

AB - HVDC systems are used for bulk power transfer where reliable operation of the system is very important. A novel fault tolerant method under sub module (SM) failure is proposed in which the faulty SMs are bypassed and system is operated with reduced number of SMs using simple phase disposition pulse width modulation (PD-PWM) until the faulty SMs are replaced. The number of levels in the modulation signals for the faulty phase are adjusted depending on the number of faulty SMs in each arm. Once the fault is cleared, the number of levels in modulation signals will revert to normal mode, bringing the MMC to normal operation. This approach provides fault tolerant operation with full power handling capacity without significant performance degradation of the system during fault. Compared to conventional fault tolerant (FT) methods, proposed approach results in fast and simple changes in PWM signals, better efficiency, higher reliability with least number of spare or redundant SM units. The proposed FT strategy is verified through simulation. The simulation results are presented.

KW - Cascaded H-Bridge Converter (CHB)

KW - High Voltage Direct Current (HVDC)

KW - Modular Multilevel Converter (MMC)

KW - Multi-level Converters

KW - PD-PWM

KW - PSC-PWM

KW - Pulse Width Modulation

KW - SM failure

KW - Voltage Source Converters

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DO - 10.1109/IECON.2019.8927428

M3 - Conference contribution

AN - SCOPUS:85084091866

T3 - IECON Proceedings (Industrial Electronics Conference)

SP - 6133

EP - 6138

BT - Proceedings

PB - IEEE Computer Society

T2 - 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019

Y2 - 14 October 2019 through 17 October 2019

ER -

Operation of MMC Based Unipolar HVDC under SM Failure

Abstract

Publication series

Conference

Keywords

UN SDGs

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