Average value MMC model with accurate blocked state and cell charging/discharging dynamics

Huibin Zhang; Dragan Jovcic; Weixing Lin; Ali Jamshidi Far

doi:10.1109/EFEA.2016.7748768

Average value MMC model with accurate blocked state and cell charging/discharging dynamics

Huibin Zhang, Dragan Jovcic, Weixing Lin, Ali Jamshidi Far

University of Aberdeen

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

19 Citations (Scopus)

Abstract

This paper proposes a simple and accurate average value model (AVM) of a high-power half-bridge MMC for electromagnetic-Transient (EMT) studies. Least number of generic EMT blocks is used. Functioning as voltage source converter (VSC), the accuracy of a simplified MMC model would eventually be determined by its accuracy in reproducing the cell charging/discharging dynamics of the detailed models under all operating conditions. The validity of the proposed MMC average value model is verified against a detailed 1GW 21-level model in PSCAD. System dynamics and modelling accuracy of the AVM are tested with various operating conditions, including MMC startup, normal operation with power reversal, DC fault conditions, and MMC cell charging/discharging dynamics from AC and DC sides, with blocked or unblocked MMC status.

Original language	English
Title of host publication	4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509007486
DOIs	https://doi.org/10.1109/EFEA.2016.7748768
Publication status	Published - 18 Nov 2016
Event	4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016 - Belgrade, Serbia Duration: 14 Sept 2016 → 16 Sept 2016

Conference

Conference	4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016
Country/Territory	Serbia
City	Belgrade
Period	14/09/16 → 16/09/16

Keywords

Average value model
detailed model
HVDC transmission
modular multilevel converter
power system simulation

UN SDGs

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

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Average value MMC model with accurate blocked state and cell charging/discharging dynamics. / Zhang, Huibin; Jovcic, Dragan; Lin, Weixing et al.
4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016. Institute of Electrical and Electronics Engineers Inc., 2016. 7748768.

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

Zhang, H, Jovcic, D, Lin, W & Far, AJ 2016, Average value MMC model with accurate blocked state and cell charging/discharging dynamics. in 4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016., 7748768, Institute of Electrical and Electronics Engineers Inc., 4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016, Belgrade, Serbia, 14/09/16. https://doi.org/10.1109/EFEA.2016.7748768

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abstract = "This paper proposes a simple and accurate average value model (AVM) of a high-power half-bridge MMC for electromagnetic-Transient (EMT) studies. Least number of generic EMT blocks is used. Functioning as voltage source converter (VSC), the accuracy of a simplified MMC model would eventually be determined by its accuracy in reproducing the cell charging/discharging dynamics of the detailed models under all operating conditions. The validity of the proposed MMC average value model is verified against a detailed 1GW 21-level model in PSCAD. System dynamics and modelling accuracy of the AVM are tested with various operating conditions, including MMC startup, normal operation with power reversal, DC fault conditions, and MMC cell charging/discharging dynamics from AC and DC sides, with blocked or unblocked MMC status.",

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AU - Zhang, Huibin

AU - Jovcic, Dragan

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N2 - This paper proposes a simple and accurate average value model (AVM) of a high-power half-bridge MMC for electromagnetic-Transient (EMT) studies. Least number of generic EMT blocks is used. Functioning as voltage source converter (VSC), the accuracy of a simplified MMC model would eventually be determined by its accuracy in reproducing the cell charging/discharging dynamics of the detailed models under all operating conditions. The validity of the proposed MMC average value model is verified against a detailed 1GW 21-level model in PSCAD. System dynamics and modelling accuracy of the AVM are tested with various operating conditions, including MMC startup, normal operation with power reversal, DC fault conditions, and MMC cell charging/discharging dynamics from AC and DC sides, with blocked or unblocked MMC status.

AB - This paper proposes a simple and accurate average value model (AVM) of a high-power half-bridge MMC for electromagnetic-Transient (EMT) studies. Least number of generic EMT blocks is used. Functioning as voltage source converter (VSC), the accuracy of a simplified MMC model would eventually be determined by its accuracy in reproducing the cell charging/discharging dynamics of the detailed models under all operating conditions. The validity of the proposed MMC average value model is verified against a detailed 1GW 21-level model in PSCAD. System dynamics and modelling accuracy of the AVM are tested with various operating conditions, including MMC startup, normal operation with power reversal, DC fault conditions, and MMC cell charging/discharging dynamics from AC and DC sides, with blocked or unblocked MMC status.

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KW - detailed model

KW - HVDC transmission

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KW - power system simulation

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ER -

Average value MMC model with accurate blocked state and cell charging/discharging dynamics

Abstract

Conference

Keywords

UN SDGs

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