Submodule Voltage Balancing and Loss Equalisation in Alternate Arm Converters Based on Virtual Voltages

Georgios Konstantinou; Harith R. Wickramasinghe; Salvador Ceballos; Josep Pou

doi:10.23919/IPEC.2018.8507725

Submodule Voltage Balancing and Loss Equalisation in Alternate Arm Converters Based on Virtual Voltages

Georgios Konstantinou, Harith R. Wickramasinghe, Salvador Ceballos, Josep Pou

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

10 Citations (Scopus)

Abstract

Balancing of the submodule (SM) capacitor voltages in the alternate arm converter (AAC) exhibits a great amount of similarities with other modular topologies, especially the modular multilevel converter (MMC). However, the requirements of operation at overmodulation range and the alternate conduction of the phase current further complicate the voltage balancing task. In this paper, a voltage balancing and loss equalisation approach based on virtual SM voltages in combination with sorting algorithms is introduced. The developed approach uses the switching states of the SMs as feedback and provides reduction of the switching frequency of the SMs, further addressing excessive switching due to component parameter variation, tolerances and faults. The effectiveness of the algorithm is demonstrated with simulation results from an equivalent full switching model of an AAC for HVDC applications.

Original language	English
Title of host publication	2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3117-3122
Number of pages	6
ISBN (Electronic)	9784886864055
DOIs	https://doi.org/10.23919/IPEC.2018.8507725
Publication status	Published - Oct 22 2018
Externally published	Yes
Event	8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan Duration: May 20 2018 → May 24 2018

Publication series

Name	2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018

Conference

Conference	8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Country/Territory	Japan
City	Niigata
Period	5/20/18 → 5/24/18

Bibliographical note

Publisher Copyright:
© 2018 IEEJ Industry Application Society.

ASJC Scopus Subject Areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

Keywords

Alternate arm converter
loss equalisation
modular multilevel converter
multilevel converters
virtual voltages
voltage balancing

Access to Document

10.23919/IPEC.2018.8507725

Cite this

Konstantinou, G., Wickramasinghe, H. R., Ceballos, S., & Pou, J. (2018). Submodule Voltage Balancing and Loss Equalisation in Alternate Arm Converters Based on Virtual Voltages. In 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 (pp. 3117-3122). Article 8507725 (2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/IPEC.2018.8507725

Konstantinou, Georgios ; Wickramasinghe, Harith R. ; Ceballos, Salvador et al. / Submodule Voltage Balancing and Loss Equalisation in Alternate Arm Converters Based on Virtual Voltages. 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 3117-3122 (2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018).

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abstract = "Balancing of the submodule (SM) capacitor voltages in the alternate arm converter (AAC) exhibits a great amount of similarities with other modular topologies, especially the modular multilevel converter (MMC). However, the requirements of operation at overmodulation range and the alternate conduction of the phase current further complicate the voltage balancing task. In this paper, a voltage balancing and loss equalisation approach based on virtual SM voltages in combination with sorting algorithms is introduced. The developed approach uses the switching states of the SMs as feedback and provides reduction of the switching frequency of the SMs, further addressing excessive switching due to component parameter variation, tolerances and faults. The effectiveness of the algorithm is demonstrated with simulation results from an equivalent full switching model of an AAC for HVDC applications.",

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Konstantinou, G, Wickramasinghe, HR, Ceballos, S & Pou, J 2018, Submodule Voltage Balancing and Loss Equalisation in Alternate Arm Converters Based on Virtual Voltages. in 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018., 8507725, 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018, Institute of Electrical and Electronics Engineers Inc., pp. 3117-3122, 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018, Niigata, Japan, 5/20/18. https://doi.org/10.23919/IPEC.2018.8507725

Submodule Voltage Balancing and Loss Equalisation in Alternate Arm Converters Based on Virtual Voltages. / Konstantinou, Georgios; Wickramasinghe, Harith R.; Ceballos, Salvador et al.
2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 3117-3122 8507725 (2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018).

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

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AU - Konstantinou, Georgios

AU - Wickramasinghe, Harith R.

AU - Ceballos, Salvador

AU - Pou, Josep

PY - 2018/10/22

Y1 - 2018/10/22

N2 - Balancing of the submodule (SM) capacitor voltages in the alternate arm converter (AAC) exhibits a great amount of similarities with other modular topologies, especially the modular multilevel converter (MMC). However, the requirements of operation at overmodulation range and the alternate conduction of the phase current further complicate the voltage balancing task. In this paper, a voltage balancing and loss equalisation approach based on virtual SM voltages in combination with sorting algorithms is introduced. The developed approach uses the switching states of the SMs as feedback and provides reduction of the switching frequency of the SMs, further addressing excessive switching due to component parameter variation, tolerances and faults. The effectiveness of the algorithm is demonstrated with simulation results from an equivalent full switching model of an AAC for HVDC applications.

AB - Balancing of the submodule (SM) capacitor voltages in the alternate arm converter (AAC) exhibits a great amount of similarities with other modular topologies, especially the modular multilevel converter (MMC). However, the requirements of operation at overmodulation range and the alternate conduction of the phase current further complicate the voltage balancing task. In this paper, a voltage balancing and loss equalisation approach based on virtual SM voltages in combination with sorting algorithms is introduced. The developed approach uses the switching states of the SMs as feedback and provides reduction of the switching frequency of the SMs, further addressing excessive switching due to component parameter variation, tolerances and faults. The effectiveness of the algorithm is demonstrated with simulation results from an equivalent full switching model of an AAC for HVDC applications.

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Konstantinou G, Wickramasinghe HR, Ceballos S, Pou J. Submodule Voltage Balancing and Loss Equalisation in Alternate Arm Converters Based on Virtual Voltages. In 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018. Institute of Electrical and Electronics Engineers Inc. 2018. p. 3117-3122. 8507725. (2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018). doi: 10.23919/IPEC.2018.8507725

Submodule Voltage Balancing and Loss Equalisation in Alternate Arm Converters Based on Virtual Voltages

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

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